- September (Pasakalye) – Baliwag (Bulacan)
- September 1 (Araw ng La Libertad) – La Libertad (Zamboanga del Norte)
- September 1 (city charter day) – Baguio City (Benguet)
- September 1 (foundation day) – Caramoran (Catanduanes)
- September 1-8 (Busig-on Festival) – Labo (Camarines Norte)
- September 1-8 (Sarakiki Festival, Our Lady of the Nativity) – Calbayog City (Samar)
- September 1-10 (Hirinugyaw Festival, St. Nicholas of Tolentino) – Cabatuan (Iloilo)
- September 3 (foundation day) – Iriga City (Camarines Sur)
- September 3 (St. Gregory the Great) – Indang (Cavite)
- Second Sunday of September (Our Lady of Porta Vaga) – Cavite City (Cavite)
- September 7-8 (Our Lady of Porteria) – Calabanga (Camarines Sur)
- September 7-8 (Our Lady of the Nativity) – Las Navas (Northern Samar)
- September 8 (charter anniversary) – Digos City (Davao del Sur)
- September 8 (Our Lady of the Nativity) – Pangil (Laguna)
- September 8 (Our Lady of the Nativity) – Natividad (Pangasinan)
- September 8 (Our Lady of Atocha) – Alicia (Isabela)
- September 8 (The Nativity of Our Lady) – Borongan (Eastern Samar)
- September 8 (Karatong, Our Lady of Refuge) – Dulag (Leyte)
- September 8 (Mama Mary Fluvial Parade) – Marikina City (Metro Manila)
- September 8 (Araw ng Baganga) – Baganga (Davao Oriental)
- September 8-9 (St. Michael) – Hinoba-an (Negros Occidental)
- September 8-9 (St. Peter Claver) – Claver (Surigao del Norte)
- September 8-10 (Panagdadapun) – Cabarroguis (Quirino)
- September 8-10 (Singkaban festival, Our Lady of Victory) – Malolos City (Bulacan)
- September 9 (St. Nicolas of Tolentino, Bonok-Bonok Maradjao Karadjao) – Surigao City (Surigao del Norte)
- September 9-10 (St. Nicholas of Tolentino) – Ivisan (Capiz)
- September 9-10 (St. Nicholas of Tolentino) – Banton (Romblon)
- September 9 (Our Lady of Aranzasu) – San Mateo (Rizal)
- September 10 (Sunduan) – Paranaque City (Metro Manila)
- September 10 (St. Nicholas of Tolentino) – San Nicolas (Batangas)
- September 10 (St. Nicholas of Tolentino) – Quinapundan (Eastern Samar)
- September 10 (Dabalis Tibit Festival, St. Nicholas of Tolentino) – Naujan (Mindoro Oriental)
- September 10 (St. Nicholas of Tolentino) – Isabela (Negros Occidental)
- September 10 (St. Nicholas of Tolentino) - Capas (Tarlac)
- September 10 (St. Nicholas of Tolentino) - Macabebe (Pampanga)
- September 10 (St. Nicolas of Tolentino) – Tandag City (Surigao del Sur)
- September 10 (St. Nicholas of Tolentino) - Dimiao (Bohol)
- September 10 (St. Nicholas of Tolentino) - Mobo (Masbate)
- September 10 (St. Nicholas of Tolentino) – Plaridel (Misamis Occidental)
- September 10 (St. Nicholas of Tolentino) - Castillejos (Zambales)
- September 10 (St. Nicholas of Tolentino) – Cagayancillo (Palawan)
- September 10 (St. Nicholas of Tolentino) – San Nicolas (Pangasinan)
- September 10 (St. Nicholas of Tolentino) – Malabuyoc (Cebu)
- September 10 (St. Nicholas of Tolentino) – Vintar (Ilocos Norte)
- September 10 (St. Nicholas of Tolentino) – San Nicolas (Ilocos Norte)
- September 10 (St. Nicholas of Tolentino) – Sinait (Ilocos Sur)
- September 10 (St. Nicholas of Tolentino) – Anda Pangasinan)
- September 10 (St. Nicholas of Tolentino) – Dauin (Negros Oriental)
- September 10 (St. Nicholas of Tolentino) – Mariveles (Bataan)
- September 10 (St. Nicholas of Tolentino) – Balaoan (La Union)
- September 10 (Pasidungog Festival, St. Nicholas of Tolentino) – Sipalay City (Negros Occidental)
- September 10 (Pasidungog Festival, St. Nicholas of Tolentino) – Talisay City (Negros Occidental)
- September 10 (Hudyaka Festival, St. Nicholas of Tolentino) – Bais City (Negros Oriental)
- September 11 (St. Raphael) – Pasay City (Metro Manila)
- Third Monday of September (Karansa Festival, St. Thomas of Villanova) – Danao City (Cebu)
- September 12 (Araw nan Claver) - Claver (Surigao del Norte)
- September 12-16 (Virgin of Casaysay) - City of San Fernando (La Union)
- September 14 (Holy Cross) – Tanza (Cavite)
- September 14 (Holy Cross) – Laoac (Pangasinan)
- September 14 (Holy Cross) – Maasim (Sarangani)
- September 14-15 (Our Virgin of Solitude) – Ronda (Cebu)
- September 14-15 (St. Michael the Archangel) – Gamay (Northern Samar)
- September 15 (Our Lady of Seven Sorrows) – Hernani (Eastern Samar)
- September 15 (Our Lady of Sorrows) – Dolores (Quezon)
- September 17 (Araw nan San Benito) – Surigao del Norte)
- September 17 (Araw ng Siquijor) – Siquijor (Siquijor)
- September 17-19 (Baoto Festival) – Jabonga (Agusan del Norte)
- September 18 (Kapakyanan Festival, foundation day) – Victoria (Mindoro Oriental)
- September 18 (Araw nan Tubod) – Tubod (Surigao del Norte)
- September 18 (Araw ng Salug) – Salug (Zamboanga del Norte)
- September 19 (Our Lady of La Sallette) – Roxas (Isabela)
- September 19-20 (St. Nicholas of Tolentino) – Mainit (Surigao del Norte)
- September 20 (Ipad Ad Aguinaldo) – Aguinaldo (ifugao)
- Third Weekend of September (Penafrancia Festival) – Naga City (Camarines Sur)
- September 21 (Tambalan, St. Matthew the Apostle and Evangelist) – Jaro (Leyte)
- September 21 (St. Matthew) – Aloran (Misamis Occidental)
- September 21-22 (St. Thomas of Villanueva) – Gen. Luna (Surigao del Norte)
- September 21-22 (St. Thomas of Villanueva) – Dao (Capiz)
- September 21-22 (St. Thomas of Villanueva) – Alcantara (Romblon)
- September 21-30 (Patabang Festival, St. Jerome) – Tapaz (Capiz)
- September 21 (St. Matthew the Apostle) – San Mateo (Isabela)
- September 22 (St. Thomas of Villanueva) – Bislig City (Surigao del Sur)
- September 24 (Our Lady of Mercy) – Taysan (Batangas)
- September 24 (St. Michael the Archangel) – Mahayag (Zamboanga del Sur)
- September 25 (Dalit Festival) – Tanjay City (Negros Oriental)
- September 25 (St. Nicholas of Flue) – Sal-lapadan (Abra)
- September 25 (St. Nicholas of Flue) – Bucloc (Abra)
- September 25 (St. Nicholas of Flue) – Daguioman (Abra)
- September 25 (St. Michael the Archangel) – Matanao (Davao del Sur)
- September 26-29 (foundation day) – Lobo (Batangas)
- Last Week of September (Peñafrancia Festival) – Daet (Camarines Norte)
- September 28 (St. Lorenzo Ruiz) - T'boli (South Cotabato)
- September 28 (St. Lorenzo Ruiz) – Burgos (Isabela)
- September 28 (St. Lorenzo Ruiz) – Don Marcellino (Davao del Sur)
- September 28 (St. Lorenzo Ruiz) – Sampoli (Zamboanga Sibugay)
- September 28 (Vinzons Day) – Daet and Vinzons (Camarines Norte)
- September 28 (St. Michael the Archangel) - Javier
- September 28-29 (Himoloan Festival, St. Michael the Archangel) – Oas (Albay)
- September 28-29 (Kaplag Festival, St. Michael the Archangel) – Mahaplag (Leyte)
- September 28-29 (Baigan/Kawayan Festival, St. Michael the Archangel) – Basey (Samar)
- September 28-29 (St. Michael the Archangel) – Argao (Cebu)
- September 28-29 (St. Michael the Archangel) – Laoang (Northern Samar)
- September 28-29 (St. Michael the Archangel) - Irosin (Sorsogon)
- September 28-29 (Djanggo Festival) – Gattaran (Cagayan)
- September 29 (St. Raphael the Archangel) – Real (Quezon)
- September 29 (Bathan Festival, St. Michael the Archangel) - San Miguel (Leyte)
- September 29 (Angel Festival, St. Raphael the Archangel) – San Rafael (Bulacan)
- September 29 (St. Michael the Archangel) – Padada (Davao del Sur)
- September 29 (St. Michael the Archangel) – San Miguel (Surigao del Sur)
- September 29 (St. Michael the Archangel) – Sto. Tomas (Davao del Norte)
- September 29 (St. Michael the Archangel) – Maripipi (Biliran)
- September 29 (St. Michael the Archangel) – Rizal (Laguna)
- September 29 (St. Michael the Archangel) – Tayabas (Quezon)
- September 29 (St. Michael the Archangel) – Jala-Jala (Rizal)
- September 29 (St. Michael the Archangel) – Currimao (Ilocos Norte)
- September 29 (St. Michael the Archangel) – San Emilio (Ilocos Sur)
- September 29 (Dalit Festival, St. Michael the Archangel) – Tangub City (Misamis Occidental)
- September 29 (Kasadya Festival, St. Michael the Archangel) - Iligan City
- September 29 (St. Michael the Archangel) – Bacnotan (La Union)
- September 29 (St. Michael the Archangel) – Bacoor (Cavite)
- September 29 (Karabaw Festival, St. Michael the Archangel) – Gandara (Samar)
- September 29 (St. Michael the Archangel) – Mabuhay (Zamboanga Sibugay)
- September 29 (St. Michael the Archangel) – Prosperidad (Agusan del Sur)
- September 29 (St. Michael the Archangel) – Nasipit (Agusan del Norte)
- September 29 (St. Michael the Archangel) - Sta. Cruz (Zambales)
- September 29 (St. Michael the Archangel) – Gaudencio E. Abordo (Palawan)
- September 29 (St. Michael the Archangel) – Pintuyan (Southern Leyte)
- September 29 (Manha-on Festival, St. Michael the Archangel) – Macrohon (Southern Leyte)
- September 29-October 1 (Kawayanan Festival, foundation day) – Gloria (Mindoro Oriental)
- September 29-30 (St. Michael the Archangel) – Samboan (Cebu)
- September 30 (St. Jerome) – Bagabag (Nueva Vizcaya)
- September 30 (Linapet Festival) – Brgy. Gueday, Besao (Mountain Province)
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