World Meteorological Day
Understanding weather and climate to protect lives and livelihoods.
About
World Meteorological Day is observed on March 23 each year to mark the entry into force of the World Meteorological Organization (WMO) Convention in 1950. The day celebrates the essential contribution meteorological and hydrological services make to public safety, food security, fresh water supply, transport, energy production, and climate adaptation.
History
The World Meteorological Organization was established as a UN specialised agency on March 23, 1950. Since 1961, March 23 has been commemorated as World Meteorological Day. Themes have ranged from 'Weather, Climate, and Water in the Digital Age' to 'Early Warning and Early Action,' reflecting the growing importance of climate science in a warming world.
Where It's Observed
How to Participate
- 01Learn how weather forecasts are created and how accurate they are
- 02Explore climate data for your region over the past century
- 03Discuss the difference between weather and climate with a child
- 04Support early-warning systems for extreme weather events
Frequently asked questions
When is World Meteorological Day?+
World Meteorological Day is observed annually on March 23. The date is fixed each year — March 23 — and does not shift based on the lunar calendar or weekday.
What is World Meteorological Day?+
World Meteorological Day is observed on March 23 each year to mark the entry into force of the World Meteorological Organization (WMO) Convention in 1950. The day celebrates the essential contribution meteorological and hydrological services make to public safety, food security, fresh water supply, …
Is World Meteorological Day a public holiday?+
World Meteorological 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 Meteorological Day?+
Learn how weather forecasts are created and how accurate they are Explore climate data for your region over the past century Discuss the difference between weather and climate with a child These are some of the most accessible ways to engage with the day's purpose.
Which countries observe World Meteorological Day?+
Global — World Meteorological Organization initiative.
Mark the date
Download a free printable calendar for 2027 and never miss World Meteorological Day.