Nature & Environment
Holidays
129 days for the planet you live on and the parts of it worth paying attention to. Earth Day, World Water Day, World Environment Day, National Recycling Day, National Look Up at the Sky Day, National Love a Tree Day. Five subcategories spanning conservation, plants, ocean, sky, and space. Browse by topic, by month, or find what conservation groups are marking this week.
5 kinds of nature holidaysTap any to filter
This month · May16MAYNatureUnited States
National Love a Tree DayCelebrate National Love a Tree Day and help make the world greener - plant a tree, care for an existing one, or join an environmental group!
129 total · calendar order
Browse the year
202601
January
8 holidays
3Sky & WeatherUnited StatesEarth at PerihelionEmbrace Earth at Perihelion! Our planet is closest to the sun, making today a unique celestial event. See how it lights up our world!2
3ConservationInternationalPerihelion DayOn Perihelion Day, Earth is closest to the Sun. Join us in exploring this astronomical wonder and its impact on our planet.0
6PlantsUnited StatesApple Tree DayCelebrate Apple Tree Day - get outside and learn about the importance of apple trees and their contribution to our environment!11
7ConservationInternationalOld Rock DayRock out on Old Rock Day and celebrate the music that defined generations - crank up those classic tunes and let nostalgia take over!2
24ConservationUnited StatesInternational Mobile Phone Recycling DayDon't let your old phone go to waste - join us on International Mobile Phone Recycling Day and help save the planet while also getting rid of clutter!3
28PlantsUnited StatesNational Daisy DayCelebrate National Daisy Day with a bouquet of blooms! Bring a little sunshine and beauty into your home with these cheerful flowers.17
28ConservationInternationalInternational Reducing CO2 Emissions DayIt's time to take action and make a difference for our planet! Join us on International Reducing CO2 Emissions Day to reduce our carbon footprint and protect the Earth.2
29PlantsUnited StatesNational Carnation DayHonor the timeless beauty and symbolism of carnations on National Carnation Day - join us in celebrating these lovely flowers!18202602
February
6 holidays
2OceanInternationalNational River DayTake a break from the hustle and bustle of life and reconnect with nature on National River Day! Grab your kayak, fishing pole, or hiking boots - it's time to explore.5
5ConservationUnited StatesWestern Monarch DayJoin us in celebrating Western Monarch Day and learn how you can help protect these beautiful butterflies and their migration journey.14
5PlantsUnited KingdomNational Primrose DayCelebrate National Primrose Day - honoring the memory of Benjamin Disraeli; with primrose tributes, the statesman's favorite flower!1
7ConservationWeek-longUnited StatesNational Green WeekGet ready to go green for National Green Week! Join the movement and make eco-friendly choices to help protect our planet.3
13ConservationInternationalInternational Natural DayGet back to nature and celebrate International Natural Day by spending time outside, appreciating the beauty of the world around us.6
16ConservationUnited StatesKyoto Protocol DayOn Kyoto Protocol Day, let's come together to take action and protect our planet for future generations.1202603
March
14 holidays
1OceanInternationalWorld Seagrass DayAn environmental advocacy day on March 1 raising awareness about seagrass ecosystems' vital roles in marine biodiversity, carbon sequestration, coastal protection, and fisheries support, while promoting their conservation.7
10PlantsUnited StatesFestival Of Life In Cracks DayA fun observance on March 10 celebrating the resilience of life symbolized by greenery sprouting from cracks in sidewalks and walls, marking the arrival of spring and renewal.10
12PlantsUnited StatesNational Plant a Flower DayA fun observance on March 12 celebrating planting flowers to welcome spring, promote gardening as a hobby, and highlight the beauty and importance of flowers in ecosystems.21
13ConservationUnited StatesSolar Appreciation DayAn environmental advocacy day on the second Friday in March celebrating the benefits of solar energy as a clean, renewable source, promoting adoption, energy independence, and environmental sustainability.10
14PlantsUnited StatesNational Learn About Butterflies DayAn awareness observance on March 14 dedicated to learning about butterflies, their life cycles, habitats, ecological roles as pollinators, and the importance of their conservation.19
14ConservationInternationalInternational Day of Action For RiversAn environmental advocacy day on March 14 raising awareness about the importance of rivers, protesting destructive dams, and demanding equitable and sustainable river management.2
18ConservationInternationalGlobal Recycling DayAn environmental advocacy day on March 18 showcasing the vital role of recycling in preserving the Earth's natural resources and securing a sustainable future.13
20PlantsWeek-longUnited StatesNational Cherry Blossom FestivalA cultural observance in late March to early April in Washington, DC celebrating cherry blossoms and the friendship between the United States and Japan.2
21PlantsUnited StatesNational Flower DayAn annual observance on March 21, the spring equinox, recognizing the cultural, economic, and ecological significance of flowers.75
21ConservationInternationalInternational Day of ForestsAn environmental advocacy day on March 21 celebrating the importance of all types of forests for biodiversity, climate regulation, water filtration, and providing livelihoods for current and future generations.6
21ConservationUnited StatesNational Renewable Energy DayAn environmental advocacy day on March 21 promoting awareness of renewable energy sources such as solar, wind, and hydropower to combat fossil fuel overuse and support a sustainable future.4
22ConservationInternationalWorld Water DayAn environmental advocacy day on March 22 highlighting the importance of freshwater, raising awareness of the global water crisis, and advocating for sustainable water management and access to safe water.22
23SpaceUnited StatesNear Miss DayAn awareness observance on March 23 highlighting the potential dangers of near-Earth asteroids, commemorating the 1989 close pass of asteroid 4581 Asclepius.4
28PlantsUnited StatesNational Weed Appreciation DayA fun observance on March 28 appreciating weeds for their ecological benefits such as providing food and habitat for wildlife, improving soil health, and offering nutritional and medicinal value.12202604
April
19 holidays
ALLConservationMonth-longUnited StatesKeep America Beautiful MonthJoin the movement and help Keep America Beautiful this month! Together, we can make our country cleaner, greener, and more beautiful.9
ALLConservationMonth-longInternationalEarth MonthJoin the movement and make a positive impact this Earth Month - from small changes to big actions, let's protect our planet together!5
3ConservationTurkmenistanA Drop of Water is a Grain of GoldDiscover the beauty and importance of water on World Water Day - remember, a drop of water is truly a grain of gold for our planet.1
5PlantsInternationalNational Dandelion DayLet's celebrate the beauty of nature on National Dandelion Day - make a wish, blow some seeds, and embrace the magic of these bright yellow flowers!14
6PlantsUnited StatesCalifornia Poppy DayGet ready to celebrate California Poppy Day in full bloom! From scenic hikes to colorful festivals, it's the perfect day to appreciate the beauty of this state flower.6
12ConservationUnited StatesTeak Awareness DayOn Teak Awareness Day, join the movement to protect this precious rainforest tree and its vital role in our environment.3
12SpaceInternationalYuri’s NightInternational space observance on April 12 to celebrate milestones in human space exploration and promote public interest in space through global educational and social events.0
13PlantsInternationalInternational Plant Appreciation DayLet's show some love for our green friends on International Plant Appreciation Day - get your hands dirty and create a beautiful garden!18
13ConservationWeek-longInternationalInternational Dark Sky WeekExplore the celestial wonders above during International Dark Sky Week - a week dedicated to reducing light pollution and preserving our night skies.4
14Sky & WeatherUnited StatesNational Look Up at the Sky DayTake a moment to appreciate the beauty of the world around you - join us for National Look Up at the Sky Day and gaze upon the wonders of nature!27
16PlantsUnited StatesNational Orchid DayCelebrate National Orchid Day with a beautiful bouquet of blooms - enjoy their delicate beauty and delight in their captivating fragrances!21
ALLPlantsMonth-longJapanFuji Shibazakura FestivalExperience the vibrant and breathtaking beauty of Fuji Shibazakura Festival - a must-see event for nature lovers!6
19ConservationUnited StatesNational Hanging Out DayOn National Hanging Out Day, ditch your to-do list and spend quality time with friends and loved ones. It's the perfect excuse to relax and unwind!8
19ConservationWeek-longUnited StatesChemists Celebrate Earth WeekDive into Chemists Celebrate Earth Week! Explore the magic of chemistry and its role in preserving our beautiful planet.0
22ConservationInternationalEarth DayAn environmental advocacy day on April 22 dedicated to raising awareness about environmental protection, sustainability, and the health of the planet.57
22ConservationUnited StatesGlobal Selfie Earth DayIt's time to snap, share and save the planet on Global Selfie Earth Day! Join the movement and capture your love for our beautiful earth.6
24PlantsUnited StatesNational Arbor DayJoin in on National Arbor Day - plant a tree, nurture nature's lungs, and help breathe life into our planet. Let's grow love for our earth!11
28ConservationInternationalSave the Frogs DayLeap into action this Save the Frogs Day! Help protect these vital creatures from extinction and keep our ecosystems hopping!14
28ConservationInternationalStop Food Waste DayDon't let your food go to waste - join in on Stop Food Waste Day and make a difference with simple changes!14202605
May
Happening now21 holidays
ALLConservationMonth-longInternationalClean Air MonthBreathe easy and join the movement to keep our air clean during Clean Air Month! Together, we can make a difference for our planet.11
2ConservationInternationalWorld Tuna DayGet hooked on World Tuna Day and indulge in delicious tuna dishes, learn about sustainable fishing practices, and support conservation efforts!6
3ConservationUnited StatesSun DaySoak up the sun and make a splash this Sun Day! Whether at the beach or pool, it's time to relax and enjoy the warmth of summer.12
4PlantsJapanGreenery DayGet out and enjoy nature on Greenery Day - it's the perfect time to appreciate the beauty of the world around us and make a positive impact for future generations.6
5ConservationInternationalGreat Lakes Awareness DayDive into Great Lakes Awareness Day! Uncover the beauty, importance, and need for conservation of these vast freshwater treasures.7
8PlantsBelgiumIris DayGet ready to bloom on Iris Day! Take a moment to appreciate the beautiful flowers and their vibrant colors – it's time to stop and smell the irises.13
9ConservationUnited StatesNational Windmill DayLet's show the windmills some love on National Windmill Day - marvel at their beauty and appreciate their contribution to a sustainable future!4
10OceanUnited StatesMother Ocean DayOn Mother Ocean Day, let's give thanks to the vast and beautiful waters that sustain life on our planet. Let's also pledge to protect it for future generations!6
10PlantsInternationalInternational Day of ArganiaGet ready to pamper your skin and hair with the nourishing benefits of argan oil on International Day of Argania - the perfect day for self-care!2
12PlantsInternationalInternational Day of Plant HealthShow your support for International Day of Plant Health by joining in on the conversation and helping to spread awareness about plant health!10
13PlantsUnited StatesTulip DayLet your love bloom on Tulip Day - the perfect opportunity to surprise your loved one with a beautiful bouquet of these colorful and romantic flowers!1916PlantsUnited StatesNational Love a Tree DayCelebrate National Love a Tree Day and help make the world greener - plant a tree, care for an existing one, or join an environmental group!20
19PlantsUnited StatesPlant Something DayPlant Something Day is the perfect opportunity to get your hands dirty and make a positive impact on the environment - let's grow together!10
20PlantsInternationalFlower DaySpring into Flower Day with the most beautiful blooms and vibrant colors to brighten up your day!19
20ConservationInternationalWorld Bee DayJoin us in celebrating World Bee Day - learn about the importance of bees and what you can do to help protect them!13
21OceanInternationalWorld Fish Migration DayGet hooked on World Fish Migration Day and learn about the incredible journey these aquatic creatures make every year!7
22ConservationInternationalInternational Day for Biological DiversityCelebrate International Day for Biological Diversity by exploring nature and getting to know the amazing biodiversity of our planet!9
25ConservationWeek-longUnited KingdomWater Saving WeekSave water, save life! Join us in Water Saving Week as we go extra miles in conserving water for a better, sustainable future. Every drop counts!0
29ConservationUnited StatesLearn About Composting DayJoin the green movement and celebrate Learn About Composting Day - discover how composting can benefit your home, garden, and the environment!2
30PlantsUnited StatesNational Water a Flower DayCelebrate National Water a Flower Day by brightening up your home or garden with beautiful blooms - get creative and make your own bouquet!13
31ConservationWeek-longUnited KingdomGarden Wildlife WeekGet ready to embrace nature and all its wonders during Garden Wildlife Week - from birdwatching to butterfly spotting, it's a wild adventure!4202606
June
23 holidays
1OceanInternationalWorld Reef Awareness DayJoin us for World Reef Awareness Day and help preserve the world’s coral reefs - our ocean needs us!10
ALLPlantsMonth-longUnited StatesNational Rose MonthGet ready to stop and smell the roses - it's National Rose Month! Discover new varieties, learn about their meanings, and spread love with this beautiful flower.33
ALLOceanMonth-longUnited StatesNational Rivers MonthDive into National Rivers Month and connect with the beauty of nature - from kayaking adventures to peaceful picnics by the water, there's something for everyone to enjoy!9
ALLOceanMonth-longUnited StatesNational Oceans MonthDive into National Oceans Month with us! Join in on beach cleanups, educational events, and eco-friendly activities to preserve our beautiful oceans.7
5ConservationInternationalWorld Environment DayLet's join forces to protect our planet - World Environment Day is the perfect day to celebrate nature and take action for a better future!22
5ConservationInternationalEarth Overshoot DayEarth Overshoot Day - a wake-up call to our planet's sustainability. Let's turn the tide, move the date, and save our Earth. Push for progress!5
6ConservationUnited StatesNational Prairie DayGet ready to appreciate the beauty of America's prairies on National Prairie Day! Join in on conservation efforts, discover wildlife, and explore untouched landscapes.2
6ConservationUnited StatesNational Trails DayExplore your backyard and beyond on National Trails Day - take a hike, go camping, or just enjoy the great outdoors!11
6ConservationUnited StatesCaves and Karst DayGet ready to explore the hidden wonders of our world on Caves and Karst Day - a day dedicated to appreciating these natural geological formations.2
6ConservationInternationalWorld Green Roof DayJoin the movement and make a positive impact on the environment this World Green Roof Day! Plant some greens, reduce carbon footprint & enjoy the beauty.2
8OceanInternationalWorld Oceans DayProtect our oceans and join the global movement to save our seas - celebrate World Oceans Day with us!15
15ConservationInternationalGlobal Wind DayGet ready to feel the wind in your hair and celebrate Global Wind Day! Join the movement towards sustainable energy and make a positive impact on our planet.2
15ConservationWeek-longUnited StatesNational Pollinator WeekBusy bees, brilliant butterflies, and hummingbirds unite for National Pollinator Week! Highlighting their vital role in our ecosystem and survival.9
16ConservationInternationalInternational WaterFall DayOn International Waterfall Day, take a moment to appreciate the natural beauty of cascading water and find your inner peace.6
17ConservationUnited StatesNational Dump the Pump DayDump the pump and save money on fuel this National Dump the Pump Day! Give your car a break and opt for sustainable transport options.2
17ConservationInternationalWorld Day to Combat Desertification and DroughtJoin us in raising awareness and taking action on World Day to Combat Desertification and Drought - let's protect our planet from these threats!1
21OceanUnited StatesNational Seashell DayReady to hit the beach and celebrate National Seashell Day? Gather up your friends and search for seashells, then create a unique souvenir to remember it by!14
21OceanUnited StatesWorld Hydrography DayDive into World Hydrography Day and explore the depths of our oceans through fascinating maps, charts, and data. Let's celebrate our planet's water resources!3
22ConservationUnited StatesWorld Rainforest DayJoin us in protecting the world's rainforests on World Rainforest Day - together, we can make a difference for our planet and its inhabitants!1
24ConservationUnited StatesUpcycling DayJoin the movement and celebrate Upcycling Day by turning trash into treasure - let's reduce waste and make our planet a little greener!6
27PlantsUnited StatesNational Orange Blossom DayCelebrate National Orange Blossom Day with a fragrant bouquet of beautiful orange blossoms and create memories to last a lifetime!12
29ConservationInternationalInternational Day of the TropicsCelebrate International Day of the Tropics with us and explore a world of diverse cultures, stunning landscapes, and unique traditions!11
30Sky & WeatherUnited StatesNational Meteor Watch DayGet ready to gaze at the stars and witness a spectacular show on National Meteor Watch Day! Don't miss this chance to make a wish upon shooting stars.8202607
July
9 holidays
1ConservationWeek-longUnited StatesClean Beaches WeekReady to hit the beach and make a positive impact? Join Clean Beaches Week and help keep our oceans clean for future generations to enjoy!5
ALLConservationMonth-longUnited StatesSmart Irrigation MonthKeep your lawn and wallet happy this summer with smart irrigation! It's time to celebrate Smart Irrigation Month and save water while keeping your greenery lush.1
3ConservationInternationalInternational Plastic Bag Free DayHelp make the world a cleaner place by joining us in celebrating International Plastic Bag Free Day - reduce, reuse, and recycle!8
10ConservationUnited StatesDon’t Step On A Bee DayProtect our buzzing friends this Don't Step On A Bee Day - help spread the word to save these pollinators and promote bee conservation!9
10ConservationInternationalGlobal Energy Independence DayJoin the movement towards a more sustainable future and celebrate Global Energy Independence Day with renewable energy sources and eco-friendly initiatives.3
20OceanJapanMarine Day in JapanImmerse yourself in the beauty of Marine Day in Japan! A day dedicated to honor the ocean's bounty and revere Japan's maritime heritage.1
26PlantsAustraliaNational Tree DayLet's branch out this National Tree Day! Plant a seed for a greener future and nurture our planet's precious lungs.15
28ConservationInternationalWorld Nature Conservation DayMake a difference on World Nature Conservation Day - join us in protecting our planet's precious resources and preserving its beauty!11
31ConservationInternationalWorld Ranger DayToday is World Ranger Day! Show your support for the brave rangers and join us in celebrating their conservation efforts.9202608
August
4 holidays
7OceanUnited StatesNational Lighthouse DayCelebrate National Lighthouse Day with a tour of some of the world's most beautiful lighthouses - enjoy stunning views and learn about maritime history!11
9Sky & WeatherInternationalAnnual Perseid Meteor Shower Peak NightDon't miss the dazzling Annual Perseid Meteor Shower Peak Night - grab a blanket, head outside, and prepare to be amazed by nature's light show!2
15ConservationInternationalWorld Honey Bee DayCelebrate World Honey Bee Day by helping to protect these essential pollinators - plant bee-friendly plants, avoid pesticides, and support local beekeepers!19
23ConservationWeek-longInternationalWorld Water WeekMake a splash during World Water Week! Help preserve our planet's most precious resource and shape a water-wise future.2202609
September
16 holidays
7ConservationInternationalInternational Day of Clean Air for Blue SkiesJoin us in celebrating International Day of Clean Air for Blue Skies - let's protect our environment and breathe clean air!10
15ConservationUnited StatesGreenpeace DayJoin Greenpeace Day and be a part of the movement to protect our planet - together, we can make a difference for a greener, cleaner future.1
16ConservationInternationalInternational Day for the Preservation of the Ozone LayerJoin the world in protecting our planet on International Day for the Preservation of the Ozone Layer - let's all work together to keep our Earth healthy!7
16ConservationInternationalWorld Ozone DayJoin the global movement on World Ozone Day - it's time to take action and protect our planet's ozone layer!6
17ConservationWeek-longPhilippinesWorld Clean and Green WeekJoin the global movement to make our planet cleaner and greener during World Clean and Green Week - small actions make a big impact!1
18ConservationInternationalWorld Water Monitoring DayJoin us in honoring World Water Monitoring Day - do your part and help protect our planet's water sources!7
19ConservationUnited StatesNational Cleanup DayMake a difference and join in on National Cleanup Day - help keep your community beautiful by picking up litter and reducing waste!9
19OceanInternationalInternational Coastal Cleanup DayJoin us in making a difference this International Coastal Cleanup Day - help clean our beaches and oceans and make the world a better place!7
21ConservationWeek-longUnited KingdomRecycle Awareness WeekJoin in on Recycle Awareness Week - because every little bit counts! Help heal our planet, one soda can and paper scrap at a time.1
22ConservationInternationalWorld Car-Free DayMake a difference this World Car-Free Day - ditch your car and choose an eco-friendly alternative to reduce your carbon footprint!6
22ConservationInternationalCar-free SundayTurn off the engine and hit the streets - it's Car-free Sunday! Join in on this eco-friendly movement and enjoy a day of biking, walking, or public transit.0
24OceanInternationalWorld Maritime DaySet sail for World Maritime Day - honoring the maritime industry's contribution to the global economy and promoting safe sea practices.2
26PlantsUnited StatesJohnny Appleseed DayCelebrate Johnny Appleseed Day with a delicious apple-inspired treat! From pies to smoothies, there's something for everyone.11
26ConservationUnited StatesNational Public Lands DayJoin us in celebrating National Public Lands Day by exploring and preserving the beautiful natural spaces that are open for all to enjoy.4
27ConservationUnited StatesNational Crush DayA social observance on September 27 encouraging people to acknowledge, confess, or celebrate their romantic crushes.74
29ConservationInternationalInternational Day of Awareness of Food Loss and WasteJoin the global movement and help reduce food waste on International Day of Awareness of Food Loss and Waste - every effort counts!8202610
October
1 holidays
202611
November
2 holidays
15ConservationUnited StatesNational Recycling DayMake a difference on National Recycling Day - reduce, reuse, and recycle to help protect the environment and conserve natural resources!25
15ConservationUnited StatesAmerica Recycles DayJoin the recycling revolution and make a difference on America Recycles Day - pledge to reduce, reuse, and recycle!11202612
December
6 holidays
2ConservationInternationalWorld Pollution Prevention DayJoin us in the fight against pollution on World Pollution Prevention Day - let's work together to create a cleaner, healthier planet for everyone!10
5ConservationInternationalWorld Soil DayJoin us in honoring World Soil Day and recognize the importance of soil for food security, climate change adaptation and mitigation, and biodiversity!13
11ConservationInternationalInternational Mountain DayCelebrate International Mountain Day with a hike, climb, or trek - explore nature's beauty and challenge yourself to reach new heights!14
14ConservationIndiaNational Energy Conservation DayOn National Energy Conservation Day, let's all do our part in saving the planet by conserving energy - small changes can make a big impact!5
19PlantsUnited StatesLook for an Evergreen DayDiscover the beauty of Look for an Evergreen Day - explore nature, appreciate your surroundings, and create lasting memories!6
23ConservationInternationalNational Forest DayCalling all people named Forest - it's time to honor your namesake on National Forest Day.2