SumatraBest 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:
- The weather is at least tolerable in Sumatra throughout the year
- 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 and October
- The cities with the best climate are Banda Aceh and Sigli, with good weather at least 9 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 in Sumatra for a specific month, click on the corresponding line below:
| Month | Our opinion | View Details | ||
|---|---|---|---|---|
| January | 72°F to 86°F | tolerable to good* | ||
| February | 74°F to 86°F | tolerable to good* | ||
| March | 76°F to 88°F | tolerable to good* | ||
| April | 76°F to 90°F | tolerable | ||
| May | 76°F to 90°F | tolerable | ||
| June | 76°F to 90°F | tolerable to good* | ||
| July | 76°F to 88°F | tolerable to good* | ||
| August | 76°F to 88°F | tolerable to good* | ||
| September | 76°F to 88°F | tolerable to good* | ||
| October | 74°F to 88°F | tolerable to good* | ||
| November | 74°F to 88°F | tolerable | ||
| December | 74°F to 86°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 january, february, march, may, june, july, august, september, october and december.
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.
Best time to go to Gunungsitoli (Pulau Nias)
The best time to visit Gunungsitoli (Pulau Nias) is june.
Best time to go to Jambi City
The best months to go to Jambi City are july, august and september.
Best time to go to Palembang
The best months to go to Palembang are june, july, august and september.
Other cities and places in Sumatra
See full list of cities
Tours and organised trips in Sumatra
Climate and Weather in Sumatra
Temperatures and rainfall in 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.
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
90°F 81°F |
92°F 83°F |
94°F 85°F |
94°F 85°F |
95°F 85°F |
95°F 83°F |
94°F 83°F |
94°F 83°F |
94°F 83°F |
92°F 83°F |
92°F 81°F |
90°F 81°F | |
| 69% | 56% | 57% | 71% | 74% | 65% | 65% | 76% | 79% | 81% | 83% | 81% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
86°F 81°F |
88°F 81°F |
90°F 83°F |
90°F 83°F |
92°F 85°F |
92°F 85°F |
92°F 83°F |
90°F 83°F |
90°F 83°F |
88°F 83°F |
88°F 81°F |
86°F 81°F | |
| 55% | 38% | 50% | 65% | 52% | 28% | 26% | 32% | 39% | 55% | 69% | 61% | |
| 85°F | 86°F | 86°F | 86°F | 88°F | 86°F | 86°F | 86°F | 86°F | 85°F | 85°F | 85°F |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
81°F 74°F |
83°F 74°F |
83°F 74°F |
83°F 74°F |
85°F 76°F |
85°F 74°F |
85°F 74°F |
85°F 74°F |
85°F 74°F |
85°F 74°F |
81°F 74°F |
81°F 74°F | |
| 83% | 87% | 89% | 91% | 80% | 68% | 67% | 77% | 82% | 78% | 93% | 84% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
88°F 85°F |
88°F 85°F |
90°F 86°F |
90°F 86°F |
90°F 86°F |
90°F 86°F |
90°F 86°F |
88°F 85°F |
88°F 85°F |
88°F 85°F |
88°F 85°F |
88°F 85°F | |
| 74% | 72% | 80% | 86% | 71% | 53% | 65% | 72% | 73% | 83% | 88% | 76% | |
| 86°F | 86°F | 86°F | 86°F | 86°F | 86°F | 86°F | 86°F | 86°F | 86°F | 86°F | 86°F |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
88°F 77°F |
90°F 77°F |
90°F 79°F |
92°F 79°F |
92°F 79°F |
92°F 77°F |
92°F 77°F |
92°F 77°F |
94°F 77°F |
92°F 79°F |
90°F 79°F |
90°F 77°F | |
| 78% | 76% | 88% | 93% | 85% | 65% | 55% | 55% | 54% | 74% | 87% | 81% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
90°F 81°F |
90°F 81°F |
92°F 81°F |
92°F 83°F |
92°F 83°F |
92°F 83°F |
92°F 81°F |
94°F 81°F |
95°F 83°F |
95°F 83°F |
92°F 83°F |
90°F 81°F | |
| 82% | 78% | 83% | 91% | 76% | 54% | 56% | 51% | 48% | 65% | 81% | 82% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
85°F 76°F |
85°F 76°F |
86°F 77°F |
86°F 77°F |
88°F 79°F |
88°F 77°F |
88°F 77°F |
88°F 77°F |
86°F 77°F |
86°F 77°F |
85°F 77°F |
85°F 76°F | |
| 82% | 77% | 74% | 92% | 87% | 69% | 75% | 80% | 83% | 82% | 89% | 87% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
88°F 77°F |
88°F 77°F |
90°F 77°F |
90°F 79°F |
90°F 79°F |
88°F 77°F |
88°F 77°F |
88°F 77°F |
90°F 77°F |
90°F 79°F |
90°F 79°F |
88°F 77°F | |
| 88% | 92% | 89% | 85% | 78% | 64% | 50% | 41% | 44% | 66% | 79% | 86% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
88°F 81°F |
90°F 81°F |
90°F 81°F |
90°F 81°F |
90°F 83°F |
90°F 81°F |
90°F 81°F |
88°F 79°F |
88°F 79°F |
88°F 79°F |
88°F 79°F |
88°F 81°F | |
| 65% | 74% | 72% | 70% | 73% | 67% | 63% | 69% | 70% | 71% | 84% | 69% | |
| 86°F | 86°F | 86°F | 86°F | 88°F | 86°F | 86°F | 85°F | 85°F | 85°F | 85°F | 86°F |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
90°F 77°F |
90°F 79°F |
92°F 79°F |
92°F 81°F |
94°F 81°F |
94°F 79°F |
94°F 79°F |
92°F 79°F |
92°F 79°F |
92°F 79°F |
90°F 79°F |
88°F 79°F | |
| 66% | 57% | 76% | 88% | 84% | 68% | 71% | 79% | 82% | 81% | 87% | 83% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
86°F 72°F |
86°F 74°F |
86°F 74°F |
86°F 74°F |
88°F 74°F |
86°F 72°F |
86°F 72°F |
86°F 72°F |
86°F 74°F |
85°F 74°F |
85°F 74°F |
85°F 72°F | |
| 79% | 82% | 86% | 87% | 81% | 70% | 66% | 79% | 83% | 84% | 93% | 82% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
88°F 81°F |
88°F 81°F |
90°F 83°F |
92°F 85°F |
92°F 85°F |
92°F 85°F |
90°F 85°F |
90°F 83°F |
90°F 83°F |
92°F 85°F |
90°F 83°F |
90°F 83°F | |
| 65% | 49% | 65% | 76% | 71% | 67% | 66% | 67% | 60% | 67% | 77% | 80% | |
| 83°F | 85°F | 85°F | 86°F | 88°F | 88°F | 86°F | 86°F | 86°F | 86°F | 86°F | 85°F |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
76°F 70°F |
77°F 70°F |
79°F 70°F |
79°F 72°F |
81°F 72°F |
81°F 70°F |
81°F 70°F |
79°F 70°F |
79°F 70°F |
77°F 70°F |
77°F 70°F |
76°F 70°F | |
| 94% | 89% | 93% | 99% | 93% | 72% | 73% | 83% | 88% | 90% | 100% | 97% |
| jan. | feb. | mar. | apr. | may | jun. | jul. | aug. | sep. | oct. | nov. | dec. | |
|
90°F 81°F |
92°F 81°F |
94°F 83°F |
94°F 85°F |
95°F 85°F |
95°F 83°F |
95°F 83°F |
95°F 83°F |
94°F 81°F |
94°F 81°F |
92°F 81°F |
90°F 81°F | |
| 69% | 58% | 58% | 72% | 72% | 66% | 67% | 75% | 75% | 82% | 83% | 80% |
Where to go in 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 | 90°F | 92°F | 94°F | 94°F | 95°F | 95°F | 94°F | 94°F | 94°F | 92°F | 92°F | 90°F |
| Banda Aceh | 86°F | 88°F | 90°F | 90°F | 92°F | 92°F | 92°F | 90°F | 90°F | 88°F | 88°F | 86°F |
| Bukittinggi | 81°F | 83°F | 83°F | 83°F | 85°F | 85°F | 85°F | 85°F | 85°F | 85°F | 81°F | 81°F |
| Gunungsitoli (Pulau Nias) | 88°F | 88°F | 90°F | 90°F | 90°F | 90°F | 90°F | 88°F | 88°F | 88°F | 88°F | 88°F |
| Jambi City | 88°F | 90°F | 90°F | 92°F | 92°F | 92°F | 92°F | 92°F | 94°F | 92°F | 90°F | 90°F |
| Palembang | 90°F | 90°F | 92°F | 92°F | 92°F | 92°F | 92°F | 94°F | 95°F | 95°F | 92°F | 90°F |
| Pematangsiantar | 85°F | 85°F | 86°F | 86°F | 88°F | 88°F | 88°F | 88°F | 86°F | 86°F | 85°F | 85°F |
| Bandar Lampung | 88°F | 88°F | 90°F | 90°F | 90°F | 88°F | 88°F | 88°F | 90°F | 90°F | 90°F | 88°F |
| Bengkulu | 88°F | 90°F | 90°F | 90°F | 90°F | 90°F | 90°F | 88°F | 88°F | 88°F | 88°F | 88°F |
| Dumai | 90°F | 90°F | 92°F | 92°F | 94°F | 94°F | 94°F | 92°F | 92°F | 92°F | 90°F | 88°F |
| Padang City | 86°F | 86°F | 86°F | 86°F | 88°F | 86°F | 86°F | 86°F | 86°F | 85°F | 85°F | 85°F |
| Batam | 88°F | 88°F | 90°F | 92°F | 92°F | 92°F | 90°F | 90°F | 90°F | 92°F | 90°F | 90°F |
| Berastagi | 76°F | 77°F | 79°F | 79°F | 81°F | 81°F | 81°F | 79°F | 79°F | 77°F | 77°F | 76°F |
| Bukit Lawang | 90°F | 92°F | 94°F | 94°F | 95°F | 95°F | 95°F | 95°F | 94°F | 94°F | 92°F | 90°F |
| Gunung Leuser National Park | 88°F | 90°F | 94°F | 94°F | 94°F | 94°F | 92°F | 92°F | 92°F | 90°F | 90°F | 88°F |
| Lac Maninjau | 81°F | 83°F | 83°F | 83°F | 85°F | 85°F | 85°F | 85°F | 85°F | 85°F | 81°F | 81°F |
| lake Toba | 76°F | 77°F | 79°F | 79°F | 81°F | 81°F | 81°F | 79°F | 79°F | 77°F | 77°F | 76°F |
| Parapat | 85°F | 85°F | 86°F | 86°F | 88°F | 88°F | 88°F | 88°F | 86°F | 86°F | 85°F | 85°F |
| Payakumbuh | 83°F | 83°F | 85°F | 85°F | 85°F | 85°F | 85°F | 86°F | 86°F | 85°F | 83°F | 83°F |
| Samosir | 85°F | 85°F | 86°F | 86°F | 88°F | 88°F | 88°F | 88°F | 86°F | 86°F | 85°F | 85°F |
Legend:
good weather
tolerable weather
very bad weather
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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.
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