Indonesia weather in September 2021

Get the latest coronavirus (COVID-19) updates for Indonesia with current travel advice, statistics and online resources.

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

More destinations >>

Recommended for Indonesia

  • Top deals & discounts
  • Indonesia weather overview
  • Indonesia climate averages by month
  • More destinations
  • Best time to go to Indonesia
  • Indonesia 5-day weather forecast

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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.

  • Save up to 9% on holidays to Indonesia
  • Book online with TUI to receive discount
  • FREE kids places & low deposits also available

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.

Indonesia sunrise & sunset times for September 2021

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


Date Sunrise times Sunset times
Wednesday, 1st September 2021 05:53 17:53
Wednesday, 15th September 2021 05:46 17:50
Thursday, 30th September 2021 05:38 17:47
  • Save up to 20% on worldwide car hire in the Holiday Autos sale
  • Discount is automatically applied when you book online
  • Travel before 30th June 2021 (inclusive)

Expires at 23:59 on Monday 18th Jan 2021 · View all Holiday Autos offers

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

Back to top

Discover more about Indonesia

More Indonesia destinations

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.