World Oceans Day
Our oceans, our future — protecting the blue heart of the planet.
About
World Oceans Day is observed on June 8 each year to celebrate the ocean and raise awareness of the crucial role it plays in sustaining life on Earth. The ocean produces over 50% of the world's oxygen, absorbs about 30% of the CO₂ produced by humans, and is home to most of Earth's biodiversity. Yet overfishing, plastic pollution, and climate change pose major threats.
History
The concept was proposed in 1992 at the Earth Summit in Rio de Janeiro by the Government of Canada. The United Nations officially recognized June 8 as World Oceans Day in 2008. Since then, it has grown into a major event with a global focus theme set each year by the Division for Ocean Affairs and the Law of the Sea.
Where It's Observed
Cultural Context
US United States
The US marks World Oceans Day with beach cleanups along both coasts, advocacy for marine protected areas, and campaigns by NOAA and environmental groups to combat plastic pollution and regulate deep-sea mining.
KR South Korea
South Korea's extensive coastline and significant fishing industry make ocean health a major concern. The day prompts campaigns on sustainable seafood, reducing marine plastic waste from coastal cities, and protecting the iconic tidal flat ecosystems of the western coast.
JP Japan
Japan's deep cultural and culinary relationship with the ocean gives World Oceans Day special significance. Fishing communities, sushi culture advocates, and marine conservationists all participate in awareness events highlighting the need to protect Japan's surrounding seas.
How to Participate
- 01Join or organise a beach or coastal clean-up
- 02Choose sustainably sourced seafood
- 03Reduce plastic usage to prevent ocean pollution
- 04Watch a documentary about ocean biodiversity
Frequently asked questions
When is World Oceans Day?+
World Oceans Day is observed annually on June 8. The date is fixed each year — June 8 — and does not shift based on the lunar calendar or weekday.
What is World Oceans Day?+
World Oceans Day is observed on June 8 each year to celebrate the ocean and raise awareness of the crucial role it plays in sustaining life on Earth. The ocean produces over 50% of the world's oxygen, absorbs about 30% of the CO₂ produced by humans, and is home to most of Earth's biodiversity. Yet o…
Is World Oceans Day a public holiday?+
World Oceans Day is an international observance or awareness day, not a public holiday in most countries. It does not typically result in days off work or school closures, though some countries and organisations hold official events.
How can I participate in World Oceans Day?+
Join or organise a beach or coastal clean-up Choose sustainably sourced seafood Reduce plastic usage to prevent ocean pollution These are some of the most accessible ways to engage with the day's purpose.
Which countries observe World Oceans Day?+
Global — United Nations initiative.
Mark the date
Download a free printable calendar for 2026 and never miss World Oceans Day.