With confirmed dates
National days
1Sep
Knowledge Day🇧🇾 Belarus and 7 more countries
Seasonal
1Sep
Kaze-no-Bon🇯🇵 Yatsuo, Japan
National days
2Sep
Ceuta Day🇪🇸 Ceuta, Spain
Cultural
3Sep
Fetu Afahye🇬🇭 Cape Coast, Ghana
Cultural
3Sep
Avante! Festival🇵🇹 Amora, Portugal
Music
5Sep
Chicago Jazz Festival🇺🇸 Chicago, United States
Cultural
5Sep
Palio di Asti🇮🇹 Asti, Italy
National days
6Sep
Labor Day🇺🇸 New York City, United States
National days
7Sep
Independence Day (Brazil)🇧🇷 São Paulo, Brazil
National days
7Sep
Independence Day (Brazil)🇧🇷 Brazil and 3 more countries
Spiritual
8Sep
Nativity of Mary🇦🇲 Armenia and 15 more countries
National days
9Sep
Day of the Foundation of the Republic🇰🇵 Pyongyang, North Korea
National days
11Sep
National Day of Catalonia🇪🇸 Barcelona, Spain
Seasonal
15Sep
Mid-Autumn Festival🇨🇳 China and 11 more countries
Seasonal
15Sep
Chuseok🇰🇷 South Korea and 1 more country
Spiritual
16Sep
Purim🇦🇫 Afghanistan and 13 more countries
National days
16Sep
Malaysia Day🇲🇾 Malaysia
National days
16Sep
Independence Day of Mexico🇲🇽 Mexico City, Mexico
Cultural
18Sep
Software Freedom Day🇨🇳 China
National days
20Sep
Respect for the Aged Day🇯🇵 Taka, Japan
National days
23Sep
Saudi National Day🇸🇦 Saudi Arabia
Cultural
23Sep
La Mercè🇪🇸 Barcelona, Spain
National days
24Sep
Heritage Day🇿🇦 South Africa
Spiritual
27Sep
Meskel🇪🇷 Addis Ababa, Eritrea and 1 more country
Spiritual
29Sep
Michaelmas🇮🇪 Tramore, Ireland and 2 more countries
Usually in September
These move from year to year, or their next date has not been announced.
Cultural
Sepvaries
Oktoberfest🇩🇪 Germany and 13 more countries
Arts and film
Sepvaries
Toronto International Film Festival🇨🇦 Toronto, Canada
Cultural
Sepvaries
Guérewol🇳🇪 In-Gall, Niger and 2 more countries
Sports
Sepvaries
Spanish Grand Prix🇪🇸 Madrid, Spain
Sports
Sepvaries
Singapore Grand Prix🇸🇬 Singapore, Singapore
Sports
Sepvaries
Italian Grand Prix🇮🇹 Monza, Italy
Spiritual
Sepvaries
Ganesh Chaturthi🇮🇳 India and 16 more countries
Spiritual
Sepvaries
Krishna Janmashtami🇧🇩 Bangladesh and 9 more countries
Arts and film
Sepvaries
San Sebastián International Film Festival🇪🇸 San Sebastián, Spain
Sports
Sepvaries
Portuguese Grand Prix🇵🇹 Porto, Portugal
Sports
Sepvaries
Berlin Marathon🇩🇪 Berlin, Germany
Sports
Sepvaries
Azerbaijan Cup🇦🇿 Azerbaijan
Cultural
Sepvaries
International Motor Show Germany🇩🇪 Munich, Germany
Sports
Sepvaries
Spartathlon🇬🇷 Athens, Greece
Sports
Sepvaries
Ryder Cup🇺🇸 United States and 3 more countries
Sports
Sepvaries
Chess Olympiad🇦🇿 Azerbaijan and 29 more countries
Sports
Sepvaries
China Open🇨🇳 Beijing, China
Arts and film
Sepvaries
New York Film Festival🇺🇸 New York City, United States
Music
Sepvaries
Rock in Rio🇧🇷 Brazil and 3 more countries
Sports
Sepvaries
Hong Kong Premier League🇨🇳 Hong Kong, China and 1 more country
Music
Sepvaries
Kyiv Music Fest🇺🇦 Kyiv, Ukraine
Sports
Sepvaries
Rugby Europe International Championships🇩🇪 Germany and 17 more countries
Sports
Sepvaries
Rally Australia🇦🇺 Coffs Harbour, Australia
Arts and film
Sepvaries
São Paulo Art Biennial🇧🇷 São Paulo, Brazil
Music
Sepvaries
Chervona Ruta🇺🇦 Chernivtsi, Ukraine
Arts and film
Sepvaries
Deauville American Film Festival🇫🇷 Deauville, France
Arts and film
Sepvaries
Gothenburg Book Fair🇸🇪 Gothenburg, Sweden
Music
Sepvaries
Warsaw Autumn🇵🇱 Warsaw, Poland
Music
Sepvaries
Farm Aid🇺🇸 United States
Arts and film
Sepvaries
Fantastic Fest🇺🇸 Austin, United States
Arts and film
Sepvaries
Lviv Book Forum🇺🇦 Lviv, Ukraine
Arts and film
Sepvaries
Gwangju Biennale🇰🇷 Gwangju, South Korea
Arts and film
Sepvaries
Polish Film Festival🇵🇱 Gdynia, Poland
Arts and film
Sepvaries
Zurich Film Festival🇨🇭 Zürich, Switzerland and 2 more countries
Arts and film
Sepvaries
Netherlands Film Festival🇳🇱 Utrecht, Netherlands
Arts and film
Sepvaries
Ars Electronica Festival🇦🇹 Linz, Austria
Cultural
Sepvaries
Almabtrieb🇦🇹 Austria and 4 more countries
Music
Sepvaries
Monterey Jazz Festival🇺🇸 Monterey, United States
Arts and film
Sepvaries
Pyongyang International Film Festival🇰🇵 Pyongyang, North Korea
Arts and film
Sepvaries
Istanbul Biennial🇹🇷 Istanbul, Turkey
Arts and film
Sepvaries
Taipei Film Festival🇹🇼 Taipei, Taiwan
Cultural
Sepvaries
Fête de l'Humanité🇫🇷 Parc départemental Georges-Valbon, France
Cultural
Sepvaries
Damba festival🇬🇭 Northern Region, Ghana
Cultural
Sepvaries
Moscow City Day🇷🇺 Moscow, Russia
Spiritual
Sepvaries
Feast of San Gennaro🇺🇸 New York City, United States and 1 more country
Music
Sepvaries
Uzeyir Hajibeyov International Music Festival🇦🇿 Baku, Azerbaijan
Arts and film
Sepvaries
Festival of Lights🇩🇪 Berlin, Germany
Music
Sepvaries
Crossroads Guitar Festival🇺🇸 New York City, United States
Spiritual
Sepvaries
Heikru Hidongba🇮🇳 Imphal, India
Spiritual
Sepvaries
Odwira Festival🇬🇭 Akropong, Ghana
Spiritual
Sepvaries
Igogo Festival🇳🇬 Owo, Nigeria
National days
Sepvaries
Sacred Defence Week🇮🇷 Iran
Music
Sepvaries
L'Boulevard🇲🇦 Casablanca, Morocco
Cultural
Sepvaries
Cannstatter Volksfest🇩🇪 Stuttgart, Germany
Arts and film
Sepvaries
Festivaletteratura🇮🇹 Mantua, Italy
Arts and film
Sepvaries
Hamburg International Film Festival🇩🇪 Hamburg, Germany
Arts and film
Sepvaries
Milan Film Festival🇮🇹 Milan, Italy
Arts and film
Sepvaries
Reykjavík International Film Festival🇮🇸 Reykjavík, Iceland
Cultural
Sepvaries
Pontevedra Feira Franca🇪🇸 Pontevedra, Spain
Arts and film
Sepvaries
FesTVal🇪🇸 Vitoria-Gasteiz, Spain
Music
Sepvaries
George Enescu Festival🇷🇴 Bucharest, Romania
Cultural
Sepvaries
Immigrants' Festival🇦🇷 Argentina and 17 more countries
Music
Sepvaries
Beethovenfest🇩🇪 Bonn, Germany
Cultural
Sepvaries
Cure Salée🇳🇪 In-Gall, Niger
Cultural
Sepvaries
Zielona Góra Wine Fest🇵🇱 Zielona Góra, Poland
Arts and film
Sepvaries
Moscow Biennale of Contemporary Art🇷🇺 Moscow, Russia
Seasonal
Sepvaries
Asogli Te Za (Yam Festival)🇬🇭 Ho, Ghana and 1 more country
Food and drink
Sepvaries
Great American Beer Festival🇺🇸 Denver, United States
Cultural
Sepvaries
Ashanti Yam Festival🇬🇭 Kumasi, Ghana
Food and drink
Sepvaries
Leskovac Grill Festival🇷🇸 Serbia and 4 more countries
Music
Sepvaries
Lake of Stars Music Festival🇲🇼 Malawi
Cultural
Sepvaries
Mama Negra🇪🇨 Latacunga, Ecuador
Food and drink
Sepvaries
Asti's Festival of Festivals🇮🇹 Asti, Italy
Food and drink
Sepvaries
Canada's Largest Ribfest🇨🇦 Burlington, Canada