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Environment day

World Dolphin Day is coming up.

Sunday, 12 September 2027

A week before, the day before and on the day. No account, nothing else.

Watch party

Count down with everyone else on this page right now.

About World Dolphin Day

World Dolphin Day is marked on 12 September each year. It’s one of the environmental days listed on Wikipedia.

In 2027 it falls on a Sunday; in 2028 it’s on Tuesday 12 September, and in 2029 on Wednesday 12 September. This time it falls at the weekend; some countries move the day off to a weekday when that happens. Also in September 2027: National Chocolate Milkshake Day (12 Sep), Constitution Day (Switzerland) (12 Sep) and Programmers’ Day (13 Sep). From this page you can add it to your calendar, get an email before it, share the countdown, or show it full screen.

How we work out the date
It’s on 12 September every year.
Sources

Page updated 5 November 2026. Report a wrong date

Dates

YearDate
2027Sunday, 12 September
2028Tuesday, 12 September
2029Wednesday, 12 September
2030Thursday, 12 September
2031Friday, 12 September
2032Sunday, 12 September
2033Monday, 12 September
2034Tuesday, 12 September
2035Wednesday, 12 September
2036Friday, 12 September

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