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Weather in January in Sumatra

Planning a journey to Sumatra this January and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in Sumatra in January?

Sumatra is a region in Indonesia. January in Sumatra generally has temperatures that range from warm to very warm, with precipitation levels ranging from high to heavy.

Temperatures

Based on our climate data spanning from 1990-2020, the average maximum temperature is warm in Tuk Tuk at 26°C to very warm in Dumai at 32°C. Nighttime temperatures generally drop to 24°C in Dumai and 19°C in Tuk Tuk. These night and day temperatures are average and some days may be even warmer. So be prepared and dress for the heat.

To learn more about the conditions in specific areas of Sumatra, check out the map below.

Precipitation

In January, precipitation varies across different areas. From high rainfall in Iboih with an average of 139 mm to heavy rainfall in Matur with 323 mm.

Average sunshine

Medan enjoys a balanced 127 hours of sunlight. Ensuring it's neither too overcast nor too sunny.

For more details on the yearly climate, visit our Sumatra climate page.

Where to go in Sumatra in January

Find more information for the most popular destinations in the Sumatra on the map below. Click on a destination dot for more details.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit Indonesia, check out our Sumatra's climate page.

Popular destinations

What is the weather like in January for the 5 most popular destinations in Sumatra?

Medan

In January Medan generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 23°C and heavy monthly rainfall. So on average the conditions are poor that month.

Medan
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   Annual Annual
<<  
33°C 
23°C 
1,593 hours 
3192 mm 
146 days 
32°C 
23°C 
127 hours 
221 mm 
11 days 
poor 
32°C 
23°C 
142 hours 
177 mm 
7 days 
Climate in Medan

Pekanbaru

In January Pekanbaru generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 23°C and heavy monthly rainfall. So on average the conditions are poor that month.

Pekanbaru
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   Annual Annual
<<  
33°C 
24°C 
2610 mm 
191 days 
32°C 
23°C 
223 mm 
14 days 
poor 
33°C 
24°C 
187 mm 
12 days 
Climate in Pekanbaru

Tanjungpandan

In January Tanjungpandan generally has high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 25°C and heavy monthly rainfall. So on average the conditions are poor that month.

Tanjungpandan
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   Annual Annual
<<  
31°C 
25°C 
2720 mm 
180 days 
30°C 
25°C 
283 mm 
17 days 
poor 
30°C 
25°C 
217 mm 
11 days 
poor 
Climate in Tanjungpandan

Bukittinggi

In January Bukittinggi generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 20°C and heavy monthly rainfall. So on average the conditions are poor that month.

Bukittinggi
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   Annual Annual
<<  
28°C 
20°C 
3996 mm 
209 days 
28°C 
20°C 
310 mm 
17 days 
poor 
29°C 
20°C 
294 mm 
14 days 
poor 
Climate in Bukittinggi

Matur

In January Matur generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 20°C and heavy monthly rainfall. So on average the conditions are poor that month.

Matur
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   Annual Annual
<<  
29°C 
20°C 
4303 mm 
206 days 
28°C 
20°C 
323 mm 
17 days 
poor 
29°C 
20°C 
312 mm 
14 days 
poor 
Climate in Matur

Is your destination not in the list? Have a look at other destinations in Sumatra, in Indonesia.

Is January the best time to visit Sumatra?

In our opinion, January may not be the ideal time to visit Sumatra due to the typically poor weather in Medan.

Generally speaking, February provides tolerable weather in Medan. On the other hand, the weather in January, April, May, June, July, August, September, October, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Sumatra.

Weather and climate has detailed information for every country in the world. Are you going to Indonesia? Get detailed historical weather averages for many cities in Indonesia.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.