Indonesia weather in September 2025

Expect daytime maximum temperatures of 91°F in Indonesia in September and very high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 3.7 inches of rainfall in the month.

• 91
  91°F max day temperature
• 9
  9 hours of sunshine per day
• 8
  8 days with some rainfall
• 73
  73°F min night temperature
• 12
  12 hours of daylight per day
• VH
  Very High heat & humidity
• 3.7
  3.7 inches of monthly rainfall
• 11
  11+ (Extreme) UV index
• 84
  84°F sea temperature

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The September weather guide for Indonesia (Jakarta) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Indonesia destinations

Below are average maximum temperatures at popular countries, regions and places in Indonesia in September. Select a holiday destination to see more weather parameters.

• 91
  Jakarta
• 90
  Kupang
• 88
  Lombok
• 86
  Bali
• 84
  Bandung
• 82
  Manado

All Indonesia regions

• Bali
• Lombok

All Indonesia destinations

• Ambon
• Amed, Bali
• Balikpapan
• Banda Aceh
• Bandar Lampung
• Bandjermasin
• Bandung
• Bengkulu
• Biak
• Bima
• Bintan Island
• Bukittinggi
• Cirebon
• Denpasar, Bali
• Gili Islands, Lombok
• Jakarta
• Jayapura
• Kendari
• Kintamani
• Kupang
• Kuta, Bali
• Kuta, Lombok
• Labuan Bajo
• Makassar
• Malang
• Manado
• Manokwari
• Mataram, Lombok
• Maumere
• Medan
• Merauke
• Nias
• Nusa Dua, Bali
• Padang
• Palembang
• Pangkalanbuun
• Prapat
• Rantepao
• Samarinda
• Sanur, Bali
• Semarang
• Seminyak, Bali
• Senggigi, Lombok
• Singaradja, Bali
• Sorong
• Surabaja
• Tarakan
• Ternate
• Ubud, Bali
• Waingapu
• Yogyakarta

Metric (°C)  |  Imperial (°F)

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More about Indonesia

Indonesia September sunrise & sunset times

Browse the sunrise and sunset times for Indonesia in September 2025. Select a month to view Indonesia sunrise and sunset times for the next 12 months. The Indonesia sunrise and sunset times shown below are for Jakarta.

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