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Climate and Weather of Sumatra, Indonesia

In Indonesia you have several regions, one of which is called Sumatra. The most popular city in this region is Medan, whose climate data we'll examine to provide you with an overview of what weather to expect in Sumatra. For detailed climate information about other cities in the area, please refer to the section beneath the map further down the page.

One thing to take into account is that on average, the temperatures are always high. The coldest month is January with an average maximum temperature of 31°C. However, the specific temperature can vary depending on the exact location within the region.

Additional climate insights:

  • A lot of rain (rainy season) falls in the month of: January, February, March, April, May, June, July, August, September, October, November and December.
  • November is the wettest month in Sumatra. This month should be avoided if you are not a big fan of rain.
  • February is the driest month.
  • The warmest month in Sumatra is May with an average maximum temperature of 33°C.
  • The coldest month is January with an average maximum daytime temperature of 31°C.
  • June is the sunniest month in Sumatra.


Interested in the detailed Weather and Climate of Sumatra, Indonesia?

Please select a city below the map you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperature over the year
2. Average monthly precipitation over the year (rainfall, snow)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical climate data like humidity wind speed and water temperature.

Popular places in Sumatra, Indonesia

Select a city to see its average temperature, precipitation and hours of sunshine over the year.

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