National Ocean Day
Dive deep and celebrate the world's oceans on National Ocean Day! Our oceans cover 71% of Earth's surface and are home to incredible biodiversity. Learn about marine conservation, ocean health, and the vital role oceans play in regulating climate. Support efforts to protect our oceans from pollution, overfishing, and climate change.
About National Ocean Day
Dive deep and celebrate the world's oceans on National Ocean Day! Our oceans cover 71% of Earth's surface and are home to incredible biodiversity. Learn about marine conservation, ocean health, and the vital role oceans play in regulating climate. Support efforts to protect our oceans from pollution, overfishing, and climate change.
History & origins
National Ocean Day is an informal observance aligned with World Oceans Day, which is celebrated each year on June 8. The idea was first proposed by the Canadian delegation at the 1992 Earth Summit in Rio de Janeiro, and the United Nations later formally designated June 8 as World Oceans Day in 2008. In practice, the day is observed internationally and is especially active across environmental, marine, and conservation groups.
Why it matters
National Ocean Day highlights how the ocean supports life, climate regulation, food systems, and coastal economies. It also draws attention to major threats such as plastic pollution, warming seas, overfishing, and habitat loss, making it a useful moment for education and conservation action.
How to celebrate
Visit the beach and learn about local marine life. Support ocean conservation organizations. Reduce plastic use to protect marine ecosystems. Watch ocean documentaries to learn about marine biodiversity. Share information about ocean conservation on social media.
Facts
- Oceans produce 70% of the oxygen we breathe
- The ocean is home to 80% of all life on Earth
- The deepest part of the ocean is the Mariana Trench at 36,000 feet
- Ocean currents regulate global climate
- Over 8 million tons of plastic enter the ocean each year
Upcoming dates
- Monday, June 8, 2026
- Tuesday, June 8, 2027
- Thursday, June 8, 2028
- Friday, June 8, 2029
- Saturday, June 8, 2030
Frequently asked questions
When is National Ocean Day in 2026?
National Ocean Day in 2026 is on Monday, June 8, 2026.
What is National Ocean Day?
National Ocean Day is a day for recognizing the importance of the world’s oceans and marine ecosystems. It focuses on ocean health, biodiversity, and protecting the sea from pollution and climate-related damage.
Who started National Ocean Day?
There is no single founder for the informal National Ocean Day name. The observance grew from the 1992 Earth Summit proposal for an ocean day and was later formalized by the United Nations as World Oceans Day.
How do you celebrate National Ocean Day?
You can celebrate by learning about marine life, reducing plastic use, supporting ocean conservation groups, or sharing ocean education online. Beach cleanups, aquariums, and documentaries are also popular ways to mark the day.
Is National Ocean Day the same as World Oceans Day?
Yes, in common use it usually refers to the same June 8 ocean observance. World Oceans Day is the official United Nations name, while National Ocean Day is a more general, informal label.
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