Indonesia weather averages for holidays in 2017/2018

Check Indonesia weather averages before you book your next holiday in 2017/2018. Today's maximum temperature in Indonesia is expected to be 33°C, while the average maximum temperature in September is 33°C. The holiday weather guide shown below is for Jakarta.

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Indonesia weather averages

Check Indonesia weather averages before you book your next holiday. The warmest months in Indonesia are April, May, August, September and October with an average maximum temperature of 33°C. The sunniest months are July, August and September with on average 9 hours of bright sunshine per day. The months with the least number of days with some rain are August and September with 8 days. The sea is at its warmest in Indonesia in May with an average sea temperature of 30°C. The Indonesia weather averages shown below are for Jakarta.

Maximum daytime temperature (°C)

Hours of sunshine (daily)

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

Days with some rainfall

Sea temperature (°C)

More weather parameters

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

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Indonesia weather today

Here is the weather in Indonesia today, Monday 25th September 2017. Expect isolated thunderstorms in Indonesia with a maximum temperature of 33°C, high levels of heat & humidity and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 62% chance of some rain and a moderate breeze of 22 kph from the north-east. The weather forecast shown below is for Jakarta.

  • 33
    °C maximum temperature
  • 27
    °C minimum temperature
  • isolated thunderstorms
  • 2
    hours of sunshine
  • 62
    % chance of some rain
  • <20
    mm of rainfall expected
  • H
    high heat & humidity
  • 22
    kph wind from NE

5-day weather forecast

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.

Tropical storm risk: Indonesia cyclone season

% of month affected by tropical storms
0
0
0
<1%
0
0
0
0
0
<1%
0
<1%
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

The Indonesia tropical storm risk chart above shows the cyclone season for Jakarta, Indonesia.

More about tropical storms

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Indonesia holiday weather averages by month

Check Indonesia holiday weather averages for a particular month by selecting from the list below. Monthly weather guides include figures for temperature, rainfall, sunshine hours and sea temperature plus daily sunrise & sunset times.

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Compare Indonesia weather with the USA

Below the Indonesia weather chart shows maximum daytime temperature for Indonesia (Jakarta) and the USA (Washington). For more weather parameters or to change the destinations shown visit the comparison weather tool.

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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