Weather in Indonesia in December

December in Indonesia is a hot month. Plan the serious walking for morning. The rest of the day wants shade and a slower pace.

A country pin in December is a warning: one region of Indonesia will not match another. Use a city page if you already know where you are going. December is high summer in the southern year. Do not pack Indonesia as if it were a northern winter. Compared with May and February, December sits in the middle of Indonesia's year.

Indonesia
Average temp
28°C

25–32°C

Rainfall
212 mm

A wet month

Sunshine
5.6 h

hours per day

What to expect

Daytime

Hot days in Indonesia. Ruins, markets and hills are a morning job. Midday sightseeing is how people remember December for the wrong reason.

Nights stay warm. Air-con, if you can get it, is part of the brief. A jumper for December in Indonesia is almost always a waste of bag space.

Rain

December is the wet side of the year in Indonesia. Days can be heavy. Plans that cannot survive rain are the wrong plans.

This is not a reason to skip Indonesia if you like the place. It is a reason to pack for weather and to stop treating every grey hour as a failed holiday.

Evening

Evenings stay warm.

What to pack

  • Sun protection

  • Rain jacket

Average weather in Indonesia

TemperatureRainfall

Source: MeteostatPeriod: 1991-2020Checked: 28 Aug 2026265 places covered

Similar weather in December

Other destinations whose December averages sit close to this one.

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FAQs about Indonesia

Climate averages for Indonesia, 1991–2020.

The best time to visit Indonesia is between June and September, the most comfortable stretch of the year on these averages.

October is the hottest month, with an average around 29°C.

January is the wettest month, with about 238 mm of rain.

No. These are 1991–2020 climate normals from Meteostat, not a live forecast. Actual weather in any given week can differ.