September International Days
September 1
- World Letter Writing Day
September 2
September 3
September 4
September 5
September 6
September 7
- World Beard Day – First Saturday in September
- International Turkey Vulture Day – First Saturday in September
September 8
September 9
- Emergency Services Day (UK)
September 10
September 11
September 12
September 13
September 14
September 15
September 16
September 17
September 18
- Rosh Hoshana Begins (changes annually)
September 19
September 20
September 21
- International Eat An Apple Day – Third Saturday in September
- International Coastal Cleanup Day – Third Saturday in September
- International Red Panda Day – Third Saturday in September
September 22
September 23
- International Day of Sign Languages
- International Celebrate Bisexuality Day (also known as Bi Visibility Day)
September 24
September 25
September 26
- International Day for the Total Elimination of Nuclear Weapons
- World Maritime Day (last Thursday of September)
September 27
- World Tourism Day
- Yom Kippur Begins (changes annually)
September 28
- International Day for Universal Access to Information
- World Rabies Day
- International Rabbit Day – Fourth Saturday in September
- International Poke Day
September 29
September 30
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