When is the best time to go to Sumatra?

When is the best time to go to Sumatra? Here's some information to help you in your decision:

  • In July, the weather is good across more than 40% of the territory of Sumatra
  • The best months to go to Medan are February, March, April and June
  • On average, it is hot all year round in Medan
  • The rainiest months in this city are May, August, September, October, November and December
  • Tanjungpinang is the city with the best climate, with good weather 9 months a year
  • The sea temperature is suitable for swimming all year round in Banda Aceh

Where and when to go based on the weather?

Bangka-Belitung Islands
Pulau Bangka, Pulau Belitung...

July, August, September and October
86°F to 90°F°C
7 to 19 days
85°F to 86°F
January, February, March, April, May, June and November
85°F to 90°F°C
12 to 26 days
85°F to 86°F
86°F to 88°F°C
21 to 26 days

Central of Sumatra
Padang City, Dumai, Bukittinggi...

85°F to 94°F°C
10 to 16 days
January, February, May, June, August, September, October and December
83°F to 94°F°C
8 to 24 days
85°F to 88°F
March, April and November
83°F to 92°F°C
16 to 27 days
85°F to 86°F

North of Sumatra
Medan, Banda Aceh, Pematangsiantar...

79°F to 92°F°C
7 to 23 days
85°F to 86°F
January, March, May, June, July, August, September and October
77°F to 95°F°C
5 to 28 days
85°F to 88°F
April, November and December
77°F to 94°F°C
12 to 29 days
85°F to 88°F

Riau Islands
Batam, Tanjungpinang...

February, March, April, May, June, July, August, September and October
86°F to 90°F°C
6 to 16 days
83°F to 88°F
January, November and December
86°F to 88°F°C
13 to 20 days
83°F to 86°F

South of Sumatra
Palembang, Bengkulu, Bandar Lampung...

June, July, August, September and October
86°F to 95°F°C
6 to 15 days
83°F to 86°F
May, November and December
86°F to 92°F°C
14 to 22 days
85°F to 86°F
January, February, March and April
86°F to 92°F°C
13 to 25 days
85°F to 86°F

To get all the information about the climate and weather on the island of Sumatra for a specific month, click on the corresponding link below:

Sumatra in january Sumatra in february Sumatra in march Sumatra in april Sumatra in may Sumatra in june Sumatra in july Sumatra in august Sumatra in september Sumatra in october Sumatra in november Sumatra in december

Best time to travel to Sumatra by cities

Chargement en cours
Bangka-Belitung Islands Bangka-Belitung Islands Central Central North North Riau Islands Riau Islands South South

See full list of cities

Temperatures and rainfall on the island of Sumatra

On these 3 graphs, we present the evolution of temperatures of Sumatra and month-by-month rainfall for the cities of Medan, Palembang, Banda Aceh, Bandar Lampung and Bengkulu, as well as the month-by-month sea temperature for coastal cities.

Peak visitor numbers and tourist seasons on the island of Sumatra

Find out when Sumatra has its high tourist season (the period when the influx of tourists is highest) and off-peak tourist season using our data and figures.

Tourist seasons on the island of Sumatra

The months with low numbers of tourists are: January, March, April, May, June, September and November. The number of visitors to Sumatra is high in: February, July, August, October and December.

  • Very low season on the island of Sumatra: January, March and April.
  • Low season on the island of Sumatra: May, June, September and November.
  • High season on the island of Sumatra: February, August and October.
  • Peak season on the island of Sumatra: July and December.

Figure: Visitor index for Sumatra month by month

Where to go on the island of Sumatra?

This table allows you to see the maximum temperature for each city and our opinion on the weather month by month (see colour legend below the table).

Cities jan.feb.mar.apr.mayjun.jul.aug.sep.oct.nov.dec.
Banda Aceh86°F88°F88°F88°F90°F90°F90°F90°F90°F88°F86°F86°F
Bandar Lampung88°F88°F90°F90°F90°F90°F88°F90°F90°F90°F90°F90°F
Gunungsitoli (Pulau Nias)85°F86°F86°F86°F86°F86°F85°F85°F85°F85°F85°F85°F
Jambi City88°F88°F90°F90°F92°F92°F92°F92°F94°F92°F90°F88°F
Padang City83°F85°F85°F85°F86°F85°F85°F85°F83°F83°F83°F83°F
Bukit Lawang90°F92°F94°F94°F94°F95°F95°F94°F94°F92°F90°F90°F
Bukit Tigapuluh National Park88°F90°F90°F92°F92°F92°F92°F92°F92°F92°F90°F88°F
Gunung Leuser National Park88°F90°F92°F92°F92°F92°F92°F92°F92°F90°F90°F88°F
Kerinci Seblat National Park85°F86°F86°F86°F86°F86°F85°F85°F85°F85°F85°F85°F
Lac Maninjau83°F85°F85°F85°F86°F86°F86°F86°F86°F85°F83°F83°F
Lake Toba (Danau Toba)77°F79°F79°F79°F81°F81°F81°F79°F79°F79°F77°F77°F


good weather

tolerable weather

bad weather

very bad weather

About Sumatra

What can I do on the island of Sumatra?

Beaches / swimming

Nature and countryside

Culture and heritage


Family travel

Crafts / shopping



Is this weather information for Sumatra reliable?

Climate data for Sumatra has been gathered every day since January 2009. The analysis of these meteorological data for Sumatra allows us to determine the average for each month in Medan, Palembang, Banda Aceh, Bandar Lampung, Bengkulu, Bukittinggi, Dumai, Gunungsitoli (Pulau Nias), and 37 other cities.

So yes: this data is reliable except in cases of temporary climate disruption in the region.

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