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International Day of Clean Air for Blue Skies, a photo from Wikimedia Commons
Photo: Adjoajo, CC BY-SA 4.0, via Wikimedia Commons

United Nations · Worldwide

International Day of Clean Air for Blue Skies is coming up.

Tuesday, 7 September 2027

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About International Day of Clean Air for Blue Skies

International Day of Clean Air for Blue Skies is one of the international days on the United Nations list. The UN uses these days to draw attention to an issue and to what people around the world are doing about it.

In 2027 it falls on a Tuesday; in 2028 it’s on Thursday 7 September, and in 2029 on Friday 7 September. Also in September 2027: Brazilian Independence Day (7 Sep), National Acorn Squash Day (7 Sep) and International Literacy Day (8 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 7 September every year, as set by the United Nations.
Sources

Page updated 5 November 2026. Report a wrong date

Dates

YearDate
2027Tuesday, 7 September
2028Thursday, 7 September
2029Friday, 7 September
2030Saturday, 7 September
2031Sunday, 7 September
2032Tuesday, 7 September
2033Wednesday, 7 September
2034Thursday, 7 September
2035Friday, 7 September
2036Sunday, 7 September

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