Pematangsiantar Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Pematangsiantar.

Climate overview of Pematangsiantar

With consistently stable weather, Pematangsiantar, Sumatra, Indonesia, sees little seasonal temperature change. Daytime highs average 30°C (86°F), ranging from 31°C (88°F) in May to 29°C (84°F) in January.

The city receives considerable rainfall, with around 3275 mm (129 in) annually. October is the wettest month.

Pematangsiantar Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Pematangsiantar — and find the best time to visit.

Monthly Temperature in Pematangsiantar

The climate in Pematangsiantar remains fairly constant, offering very warm temperatures throughout the year. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in May to a comfortable 29°C (84°F) in the coolest month, January.

Nights vary from 22°C (72°F) in May to around 21°C (70°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Pematangsiantar

Pematangsiantar is known for its substantial rainfall, with annual precipitation reaching 3275 mm (129 in). Pematangsiantar offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month October (366 mm (14 in)) and the driest month February (204 mm (8 in)) is not too significant. For more details, please visit our Pematangsiantar Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Best Time to Visit Pematangsiantar

The weather in Pematangsiantar is characterized by year-round heavy rainfall, with no month offering relief from the wet conditions. All months exceed 160 mm (6.3 in) of precipitation, creating a consistently humid environment. If forced to choose, February offers the lowest rainfall at 204 mm (8 in).

Embrace the wet climate by bringing proper rain gear and plan activities that are indoor.

Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.

Frequently asked questions about the climate in Pematangsiantar

What is the best time to visit Pematangsiantar?

January typically offers the most optimal weather in Pematangsiantar. In contrast, February, March, April, May, June, July, August, September, October, November and December tend to have less optimal conditions.

What temperatures can I expect in Pematangsiantar?

Daytime highs range from 29°C (84°F) in January to 31°C (88°F) in May. Nighttime lows range from 21°C (70°F) to 22°C (72°F). Temperatures stay relatively stable year-round.

How much rain does Pematangsiantar get?

Annual rainfall is around 3275 mm (129 in). October is the wettest month with 366 mm (14 in), while February is the driest with 204 mm (8 in).

Pematangsiantar 3-Day Forecast

Pematangsiantar 3-Day Forecast

Pematangsiantar on the map

Pematangsiantar is highlighted — select any city to see its climate.

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