Best time to go to Sumatra for a perfect weather and where to go?
Find the very best time to visit Sumatra from average weather conditions in many locations like Bukit Lawang or Tanjungpinang, below.
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 26% of the territory of Sumatra
- The best months to go to Medan are February and March
- On average, it is hot all year round in Medan
- The rainiest months in this city are September, October and November
- Tanjungpinang is the city with the best climate, with good weather 8 months a year
- The sea temperature is suitable for swimming all year round in Banda Aceh
For information about the climate and the weather city by city on the island of Sumatra for a specific month, click on the corresponding line below:
| Month | Our opinion | View Details | |||
|---|---|---|---|---|---|
| January | 72°F to 85°F | tolerable | |||
| February | 74°F to 85°F | tolerable* | |||
| March | 74°F to 86°F | tolerable* | |||
| April | 74°F to 86°F | tolerable | |||
| May | 74°F to 88°F | tolerable | |||
| June | 74°F to 86°F | tolerable* | |||
| July | 74°F to 86°F | tolerable* | |||
| August | 74°F to 86°F | tolerable* | |||
| September | 74°F to 88°F | tolerable* | |||
| October | 74°F to 88°F | tolerable | |||
| November | 72°F to 86°F | tolerable | |||
| December | 72°F to 85°F | tolerable |
Best time to travel to Sumatra by cities
Best time to go to Medan
The best months to go to Medan are february and march.
Best time to go to Banda Aceh
The best months to go to Banda Aceh are february, june, july, august and september.
Best time to go to Bukittinggi
The best months to go to Bukittinggi are january, february, march, april, may, june, july, august, september, october, november and december.
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, Banda Aceh, Bukittinggi, Gunungsitoli (Pulau Nias) and Jambi City, as well as the month-by-month sea temperature for coastal cities.
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. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. |
| Medan | 88°F | 90°F | 92°F | 92°F | 94°F | 94°F | 94°F | 94°F | 92°F | 90°F | 90°F | 88°F |
| Banda Aceh | 85°F | 86°F | 88°F | 88°F | 88°F | 90°F | 90°F | 90°F | 88°F | 88°F | 86°F | 85°F |
| Bukittinggi | 81°F | 81°F | 83°F | 83°F | 83°F | 83°F | 83°F | 85°F | 83°F | 83°F | 81°F | 81°F |
| Gunungsitoli (Pulau Nias) | 85°F | 85°F | 86°F | 85°F | 86°F | 86°F | 85°F | 85°F | 85°F | 85°F | 85°F | 85°F |
| Jambi City | 88°F | 88°F | 90°F | 90°F | 92°F | 92°F | 90°F | 92°F | 94°F | 92°F | 90°F | 88°F |
| Palembang | 88°F | 88°F | 90°F | 92°F | 92°F | 92°F | 90°F | 94°F | 94°F | 94°F | 92°F | 88°F |
| Pematangsiantar | 83°F | 85°F | 86°F | 85°F | 86°F | 88°F | 86°F | 86°F | 86°F | 85°F | 83°F | 83°F |
| Bandar Lampung | 88°F | 88°F | 88°F | 88°F | 88°F | 88°F | 88°F | 88°F | 90°F | 90°F | 88°F | 88°F |
| Bengkulu | 86°F | 86°F | 86°F | 86°F | 88°F | 86°F | 86°F | 86°F | 86°F | 86°F | 85°F | 85°F |
| Dumai | 88°F | 90°F | 90°F | 92°F | 92°F | 92°F | 92°F | 92°F | 92°F | 90°F | 88°F | 88°F |
| Padang City | 81°F | 83°F | 83°F | 83°F | 83°F | 83°F | 83°F | 83°F | 81°F | 81°F | 81°F | 81°F |
| Batam | 86°F | 86°F | 88°F | 90°F | 90°F | 88°F | 88°F | 88°F | 88°F | 88°F | 88°F | 86°F |
| Berastagi | 76°F | 77°F | 79°F | 77°F | 79°F | 81°F | 81°F | 79°F | 79°F | 77°F | 76°F | 76°F |
| Bukit Lawang | 88°F | 90°F | 92°F | 92°F | 94°F | 94°F | 94°F | 94°F | 92°F | 92°F | 90°F | 88°F |
| Gunung Leuser National Park | 88°F | 90°F | 92°F | 92°F | 92°F | 92°F | 92°F | 92°F | 90°F | 90°F | 88°F | 88°F |
| Lac Maninjau | 81°F | 81°F | 83°F | 83°F | 83°F | 83°F | 83°F | 85°F | 83°F | 83°F | 81°F | 81°F |
| lake Toba | 76°F | 77°F | 79°F | 77°F | 79°F | 81°F | 81°F | 79°F | 79°F | 77°F | 76°F | 76°F |
| Parapat | 83°F | 85°F | 86°F | 85°F | 86°F | 88°F | 86°F | 86°F | 86°F | 85°F | 83°F | 83°F |
| Payakumbuh | 81°F | 83°F | 83°F | 85°F | 85°F | 85°F | 85°F | 86°F | 85°F | 85°F | 83°F | 81°F |
| Samosir | 83°F | 85°F | 86°F | 85°F | 86°F | 88°F | 86°F | 86°F | 86°F | 85°F | 83°F | 83°F |
Legend:
perfect weather
good weather
tolerable weather
bad weather
Map of Sumatra
Click over cities for information about the weather.
cities on the island of SumatraAbout Sumatra
What can I do on the island of Sumatra?
Beaches / swimming
Nature and countryside
Culture and heritage
Sports
Family travel
Crafts / shopping
Gastronomy
Nightlife
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, Banda Aceh, Bukittinggi, Gunungsitoli (Pulau Nias), Jambi City, Palembang, Pematangsiantar, Bandar Lampung, and 25 other cities.
So yes: this data is reliable except in cases of temporary climate disruption in the region.