Indonesia weather

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Below are the temperatures expected today at popular destinations in Indonesia. Select a destination to compare today's forecast with average weather conditions.

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The weather guide for Indonesia shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Indonesia?

The hottest time of year in Jakarta, Indonesia is normally October. Expect maximum daytime temperatures to reach 33°C with very high heat and humidity.

Which month has the most rain in Indonesia?

In terms of rainfall, January is usually the wettest month in Jakarta, Indonesia with 406mm on average. There are normally 17 days in January with some rain.

When is it sunniest in Indonesia?

The sunniest time of year in Jakarta, Indonesia is normally August with bright sunshine on average for 77% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Indonesia?

The sea is usually at its warmest in Jakarta, Indonesia in May when the water temperature reaches 30°C.

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

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Compare Indonesia weather with the USA

Below the Indonesia weather chart shows average maximum daytime temperature for Indonesia (Jakarta) and the USA (Washington).

Maximum daytime temperature (°C)

Indonesia (Jakarta)
USA (Washington)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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Indonesia weather overview

Indonesia, which comprises over 13,500 islands as well as the western part of New Guinea, has a tropical climate but conditions vary greatly from area to area. The larger islands, of which the best known are Sumatra, Java, Bali, Lombok and Borneo, are mountainous and volcanic with colder, rainy conditions prevalent in their upper reaches. In the lowlands, conditions are equatorial: warm, steamy and wet.

Rain falls throughout the year and intensity varies from region to region depending on whether it is brought by the north monsoon (November to March) or the south monsoon (May to September). Parts of Indonesia are the most thundery places in the world so this is not a place to make for if you're scared of storms!

That said, Indonesia is popular with the holiday trade because its rainy periods are interspersed with spells of bright, sunny weather: Bali has lashings of sunshine throughout the year. Temperatures and humidity are high on the coast where conditions can feel muggy and oppressive although sea breezes make life more tolerable. Inland conditions are cooler, especially on higher ground and at night.

What to pack for Indonesia weather

Take light clothes and be prepared for rain whatever the time of year. Pack warmer attire if you are travelling away from the coast.

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