- Book online with TUI & save up to 7% on holidays
- FREE child places available for select holidays
- Pay £0 deposits with direct debit & spread the cost
Indonesia weather in September 2025
Expect 91°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Indonesia in September. Check more long-term weather averages for Indonesia in September before you book your next holiday to Indonesia in 2025/2026.
- 9191°F max day temperature
- 9 hours of sunshine per day
- 88 days with some rainfall
- 7373°F min night temperature
- 1212 hours of daylight per day
- VHVery High heat & humidity
- 3.73.7 inches of monthly rainfall
- 1111+ (Extreme) UV index
- 8484°F sea temperature
More about Indonesia
- Overview
- Best time to visit
- Weather by month
- 5-day weather forecast
- Destinations
- Travel advice
- Deals & discounts
Indonesia by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Indonesia
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.
All Indonesia regions
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)
More about Indonesia
How hot is it in Indonesia in September?
Daytime temperatures usually reach 91°F in Jakarta, Indonesia in September with very high heat and humidity, falling to 73°F at night.
How sunny is it in Indonesia in September?
There are normally 9 hours of bright sunshine each day in Jakarta, Indonesia in September - that's 71% of daylight hours.
How warm is the sea around Indonesia in September?
The average sea temperature around Jakarta, Indonesia in September is 84°F.
Does it rain in Indonesia in September?
There are usually 8 days with some rain in Jakarta, Indonesia in September and the average monthly rainfall is 3.7 inches.
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.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:53 | 17:53 |
Monday, 15th September 2025 | 05:46 | 17:50 |
Tuesday, 30th September 2025 | 05:38 | 17:47 |
Be inspired
Get your weekly fix of holiday inspiration from some of the world's best travel writers plus save on your next trip with the latest exclusive offers
We promise not to share your details
Related posts
Popular travel offers
Explore holidays in the sun for less
- Beach holidays
- Family holidays
- City breaks
- Summer holidays
- Winter sun holidays
- Holiday offers
- Top travel brands
- Airlines & flights
- Discount hotels
- Airport parking deals
- TUI
- Jet2holidays
- easyJet holidays
- Love Holidays
- Black Friday sales
Airport parking
- Manchester Airport
- Stansted Airport
- Bristol Airport
- Luton Airport
- Birmingham Airport
- Edinburgh Airport
- Gatwick Airport
- Glasgow Airport
- Newcastle Airport
Airport lounges
- Manchester Airport
- Birmingham Airport
- Bristol Airport
- Edinburgh Airport
- Glasgow Airport
- Heathrow Airport
- Newcastle Airport
- Stansted Airport
- Gatwick Airport