ClimateForecastDecemberJanuary >>

Weather in December in Sumatra

Are you planning a trip a to Sumatra in December and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Sumatra in December?

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

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 Pekanbaru at 32°C. Nighttime temperatures generally drop to 24°C in Pekanbaru and 19°C in Tuk Tuk. The temperatures mentioned for daytime and nighttime are general averages. However there can be days that surpass these temperatures. So equip yourself with clothing that can handle the potential heat.

Precipitation

In December, precipitation varies across different areas. From heavy rainfall in Sawahlunto with an average of 255 mm to heavy rainfall in Matur with 396 mm.

Average sunshine

Most cities witness limited sunny days, expect roughly 98 hours of sunlight in Medan. This low amount of sunlight is perfect for those who lean towards dimmer, cloudier weather rather than intense sunny days.

For a closer look at December's conditions in Sumatra, see the map below. For a more detailed look at Sumatra's yearly weather, check out our Sumatra climate page.

Where to go in Sumatra in December

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

Map not visible? Whoops sorry! Please refresh the page.
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).

Popular destinations

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

Medan

In December Medan generally has very high temperatures with maximum daytime temperatures around 31°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
31°C 
23°C 
106 hours 
377 mm 
17 days 
poor 
31°C 
23°C 
98 hours 
334 mm 
15 days 
poor 
January   >> January
>>  
32°C 
23°C 
127 hours 
221 mm 
11 days 
poor 
Climate in Medan

Pekanbaru

In December Pekanbaru generally has very high temperatures with maximum daytime temperatures around 32°C, minimum nighttime temperatures around 24°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
32°C 
24°C 
313 mm 
22 days 
poor 
32°C 
24°C 
281 mm 
19 days 
poor 
January   >> January
>>  
32°C 
23°C 
223 mm 
14 days 
poor 
Climate in Pekanbaru

Tanjungpandan

In December 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
30°C 
25°C 
335 mm 
21 days 
poor 
30°C 
25°C 
372 mm 
22 days 
poor 
January   >> January
>>  
30°C 
25°C 
283 mm 
17 days 
poor 
Climate in Tanjungpandan

Bukittinggi

In December 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
28°C 
20°C 
478 mm 
23 days 
poor 
28°C 
20°C 
380 mm 
21 days 
poor 
January   >> January
>>  
28°C 
20°C 
310 mm 
17 days 
poor 
Climate in Bukittinggi

Matur

In December 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
28°C 
20°C 
518 mm 
22 days 
poor 
28°C 
20°C 
396 mm 
21 days 
poor 
January   >> January
>>  
28°C 
20°C 
323 mm 
17 days 
poor 
Climate in Matur

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

Is December the best time to visit Sumatra?

Given the typically poor weather conditions in Medan, December may not be the ideal time to visit Sumatra.

On average, the best time to visit Sumatra is in February with generally 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. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • 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.