International Celebration Days
9/2 - Independence Day (Vietnam)
9/6 - Somhlolo Day (Eswatini)
9/7 - Independence Day (Brazil)
9/8 - Our Lady of Meritxell Day (Andorra)
9/8 - Independence Day (North Macedonia)
9/9 - Independence Day (Tajikistan)
9/10 - National Day (Gibraltir)
9/15 - Independence Day (Costa Rica)
9/15 - Independence Day (El Salvador)
9/15 - Independence Day (Guatemala)
9/15 - Independence Day (Honduras)
9/15 - Independence Day (Nicaragua)
9/16 - Independence Day (Mexico)
9/16 - Independence Day (Papua New Guinea)
9/18 - Independence Day (Chile)
9/19 - Independence Day (St Kitts and Nevis)
9/21 - Independence Day (Armenia)
9/21 - Independence Day (Belize)
9/21 - Independence Day (Malta)
9/22 - Independence Day (Bulgaria)
9/22 - Independence Day (Mali)
9/23 - Saudi National Day (Saudi Arabia)
9/24 - Independence Day (Guinea-Bissau)
9/24 - New Caledonia Day (New Caledonia)
9/24 - Heritage Day (South Africa)
9/27 - Independence Day (Turkmenistan)
9/30 - Independence Day (Botswana)
Holidays in September
9/7 - National Beer Lover's Day
9/9 - California Statehood Day
9/10 - German Language Day
9/11 - 9/11 Remembrance / Patriot Day
9/11 - Maori Language Week
9/13 - European Heritage Day
9/15 - International Day of Democracy
9/15 - Rosh Hashanah
9/15 - National POW-MIA Recognition Day
9/16 - Oktoberfest
9/18 - National Cheeseburger Day
9/19 - International Talk like a Pirate Day
9/21 - International Day of Peace
9/21 - World Gratitude Day
9/23 - Fall Equinox
9/25 - National Lobster Day