Swimming in Indonesia in september 2025 Sea temperature by city in september

In september in Indonesia swimming conditions are generally the same everywhere.

In september in Ambon, Jakarta, Java, Jayapura, Kupang, Makassar, Mataram, Pontianak (Borneo), Sumbawa Besar, Amed, Bali, Bima, Gili Air, Raja Ampat Islands, Lombok, Manado, Sumatra, Surabaya, Taliwang, Ternate, Bali Barat National Park, Balikpapan, Banda Aceh, Bandar Lampung, Bengkulu, Dumai, Flores, Gilimanuk, Gunungsitoli (Pulau Nias), Kendari, Komodo island, Kuta, Lovina Beach, Maluku Islands, Negara, Nusa Dua, Nusa Lembongan, Nusa Penida, Padang City, Padangbai, Selong Blanak, Semarang, Sumba (Waingapu), Sumbawa, Tabanan, Tanglad, Tejakula, Awang, Babadan, Balian Beach (Tabanan), Bangkir, Batam, Batanta, Batu Putih, Belimbingsari, Biak, Bitung, Blongas, Bubunan, Way Kambas National Park, Bunyu, Calang, Canggu, Desa Anjar, Ekas Beach, Gerokgak, Gili Lawang, Gili Meno, Gili Sulat, Gili Trawangan, Halmahera, Handil, Haruku, Bunaken Island, Rote Island, Yamdena Island, Kai Islands, Karimun Java, Jimbaran, Karangasem, Kai Besar (Great Kai Island), Kai Dulah, Kai Kecil, Kolaka, Kore, Kota Masohi, Kubu, Kuta (Lombok), Larike, Legian, Lembar, Lembeh, Liang, Lolak, Luhu (Huamual Belakang), Luwuk, Makian, Mangsit, Manokwari and Mawun, swimming conditions are perfect! With water reaching a maximum of 84°F and an average of 82°F, going in the water (and staying there!) feels great.