Indonesia weather in September 2021

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Below are average maximum temperatures at popular destinations in Indonesia in September. Select a destination to see more weather parameters.

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The September weather guide for Indonesia 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.

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How hot is it in Indonesia in September?

Daytime temperatures usually reach 33°C in Jakarta, Indonesia in September with very high heat and humidity, falling to 23°C 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 29°C.

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 93mm.

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

Indonesia sunrise & sunset times for September 2021

Browse the sunrise and sunset times for Indonesia in September 2021. Select a month to view Indonesia sunrise & sunset times for the next 12 months. The Indonesia sunrise and sunset times shown below are for Jakarta.

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