Bintan Island weather in September 2025

Expect 32°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Bintan Island in September. Check more long-term weather averages for Bintan Island in September before you book your next holiday to Indonesia in 2025/2026.

  • 32°C maximum daytime temperature in September in Bintan Island32
    32°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in September in Bintan Island14
    14 days with some rainfall
  • 22°C minimum night-time temperature in September in Bintan Island22
    22°C min night temperature
  • 12 hours of daylight per day in September in Bintan Island12
    12 hours of daylight per day
  • Very high heat & humidity in September in Bintan IslandVH
    Very High heat & humidity
  • 214 mm monthly rainfall in September in Bintan Island214
    214 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Bintan Island11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Bintan Island29
    29°C sea temperature

More about Bintan Island

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The September weather guide for Indonesia (Bintan Island) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Bintan Island in September?

Daytime temperatures usually reach 32°C in Bintan Island in September with very high heat and humidity, falling to 22°C at night.

How sunny is it in Bintan Island in September?

There are normally 5 hours of bright sunshine each day in Bintan Island in September - that's 44% of daylight hours.

How warm is the sea around Bintan Island in September?

The average sea temperature around Bintan Island in September is 29°C.

Does it rain in Bintan Island in September?

There are usually 14 days with some rain in Bintan Island in September and the average monthly rainfall is 214mm.

Bintan Island September sunrise & sunset times

Browse the sunrise and sunset times for Bintan Island in September 2025. Select a month to view Bintan Island sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:59 18:06
Monday, 15th September 2025 05:54 18:01
Tuesday, 30th September 2025 05:49 17:55

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