North Sumatra Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in North Sumatra, Indonesia in December.

Thinking about venturing to North Sumatra, Indonesia this December and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in North Sumatra in December

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

Temperatures

The average maximum daytime temperatures vary from warm in Tuk Tuk at 26°C (79°F) to very warm in Medan at 31°C (88°F). Nighttime temperatures generally drop to 23°C (73°F) in Medan and 19°C (66°F) 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.

For a closer look at conditions across North Sumatra, Indonesia, refer to the map below.

Precipitation

In December, precipitation varies across different areas. From heavy rainfall in Tuk Tuk with an average of 274 mm (11 in) to heavy rainfall in Berastagi with 337 mm (13 in).

Average sunshine

Sunshine is quite limited in many locations during December. Medan receives roughly 98 hours of sunlight. For destinations with more sunshine, our weather planner offers alternatives worldwide.

Explore North Sumatra by month

Pick a month to see the average temperature, rainfall and sunshine in North Sumatra — and find the best time to visit. (based on Medan)

Best Places to Visit in North Sumatra in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across North Sumatra.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in North Sumatra

What is the weather like in December for some of the most popular destinations in North Sumatra, Indonesia?

Temperature range in North Sumatra (December)

Precipitation variation in North Sumatra (December)

Medan

In December Medan generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
31°C (88°F)
31°C (88°F)
32°C (90°F)
Min temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Monthly sun hours
106 hours
98 hours
127 hours
Monthly rainfall
377 mm (15 in)
334 mm (13 in)
221 mm (8.7 in)
Monthly rainy days
17 days
15 days
11 days
Weather conditions

Rantauprapat

In December Rantauprapat generally has very high temperatures with maximum daytime temperatures around 31°C (88°F), minimum nighttime temperatures around 23°C (73°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
31°C (88°F)
31°C (88°F)
31°C (88°F)
Min temperature
23°C (73°F)
23°C (73°F)
23°C (73°F)
Monthly rainfall
343 mm (14 in)
314 mm (12 in)
226 mm (8.9 in)
Monthly rainy days
21 days
18 days
14 days
Weather conditions

Tuk Tuk

In December Tuk Tuk generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
26°C (79°F)
26°C (79°F)
26°C (79°F)
Min temperature
19°C (66°F)
19°C (66°F)
19°C (66°F)
Monthly rainfall
290 mm (11 in)
274 mm (11 in)
199 mm (7.8 in)
Monthly rainy days
21 days
18 days
14 days
Weather conditions

Berastagi

In December Berastagi generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 18°C (64°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
27°C (81°F)
26°C (79°F)
27°C (81°F)
Min temperature
18°C (64°F)
18°C (64°F)
18°C (64°F)
Monthly sun hours
106 hours
98 hours
127 hours
Monthly rainfall
351 mm (14 in)
337 mm (13 in)
233 mm (9.2 in)
Monthly rainy days
20 days
18 days
13 days
Weather conditions

Parapat

In December Parapat generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
27°C (81°F)
26°C (79°F)
27°C (81°F)
Min temperature
20°C (68°F)
20°C (68°F)
19°C (66°F)
Monthly rainfall
307 mm (12 in)
295 mm (12 in)
218 mm (8.6 in)
Monthly rainy days
21 days
19 days
14 days
Weather conditions

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

Popular cities in December

Day & night temperatures, rainfall and average weather in North Sumatra in December.

City Weather Day temp Night temp Rainfall
Medan 31°C (88°F) 23°C (73°F) 334 mm (13 in)
Rantauprapat 31°C (88°F) 23°C (73°F) 314 mm (12 in)
Tuk Tuk 26°C (79°F) 19°C (66°F) 274 mm (11 in)
Berastagi 26°C (79°F) 18°C (64°F) 337 mm (13 in)
Parapat 26°C (79°F) 20°C (68°F) 295 mm (12 in)
Pematangsiantar 29°C (84°F) 21°C (70°F) 314 mm (12 in)

North Sumatra weather in December: frequently asked questions

What is the weather like in North Sumatra, Indonesia in December?

In December, North Sumatra, Indonesia generally has poor weather conditions. Medan sees daytime temperatures near 31°C (88°F), with nights cooling to roughly 23°C (73°F).

What is the average temperature in North Sumatra, Indonesia in December?

Medan averages a daytime maximum of 31°C (88°F) in December, with overnight lows close to 23°C (73°F).

Does North Sumatra, Indonesia get a lot of rain in December?

Expect plenty of rainfall. Medan records an average of 334 mm (13 in) in December, putting it among the wetter months for North Sumatra, Indonesia.

Is December a Good Time to Visit North Sumatra, Indonesia?

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

Generally speaking, February provides unpleasant weather in Medan.

Interested in more climate information?

We have much more information about the climate in North 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.

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