Banda Aceh climate
Banda Aceh (Indonesia) has a tropical rainforest climate (Köppen Af). The average temperature over the year is 28 °C82 °F, and about 1,914 mm75 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Banda Aceh climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2984 | 2678 | 2781 | 1957.7 |
| Feb | 3085 | 2679 | 2882 | 1034.0 |
| Mar | 3086 | 2680 | 2883 | 1495.9 |
| Apr | 3087 | 2780 | 2984 | 1415.6 |
| May | 3087 | 2780 | 2984 | 1546.1 |
| Jun | 3087 | 2780 | 2883 | 993.9 |
| Jul | 3086 | 2679 | 2883 | 913.6 |
| Aug | 3086 | 2679 | 2883 | 1094.3 |
| Sep | 3086 | 2679 | 2882 | 1375.4 |
| Oct | 2985 | 2679 | 2882 | 2058.1 |
| Nov | 2984 | 2679 | 2781 | 26310 |
| Dec | 2983 | 2678 | 2781 | 26911 |
| Year | 3087 | 2678 | 2882 | 1,91475 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 82% | 78% | 4.8 | 11:50 |
| Feb | 80% | 73% | 5.3 | 11:56 |
| Mar | 78% | 76% | 5.5 | 12:05 |
| Apr | 78% | 82% | 5.3 | 12:14 |
| May | 79% | 87% | 5.0 | 12:22 |
| Jun | 78% | 84% | 5.1 | 12:26 |
| Jul | 77% | 86% | 5.0 | 12:25 |
| Aug | 77% | 87% | 5.1 | 12:18 |
| Sep | 78% | 90% | 5.0 | 12:08 |
| Oct | 80% | 90% | 4.7 | 11:59 |
| Nov | 82% | 90% | 4.3 | 11:52 |
| Dec | 84% | 86% | 4.2 | 11:48 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Banda Aceh is like
The warmest month is May, with an average high of 30 °C87 °F and a low of 27 °C80 °F. The coldest is December, when highs average 29 °C83 °F and lows 26 °C78 °F. Temperatures barely change through the year: the warmest and the coolest month differ by only 1.5 °C2.7 °F.
It is wet, with about 1,914 mm75 in of precipitation per year. The wettest three-month stretch is October–December, which brings 38% of the annual total. The wettest month is December (269 mm11 in), the driest is July (91 mm3.6 in).
Relative humidity ranges from 77% in August to 84% in December. The clearest skies (lowest average cloud amount, 73%) are typical of February. Average wind speed near the ground ranges from 8 km/h (5 mph) in April to 15 km/h (9 mph) in July.
Best time to visit Banda Aceh
Based on these averages, the most comfortable months for sightseeing and outdoor activities are February and June–August: average highs of 30 °C85 °F to 30 °C87 °F with 91 mm3.6 in to 109 mm4.3 in of precipitation per month.
The most challenging month is December, which is very wet (269 mm11 in) and humid (84% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Banda Aceh
- Wetter months (October–January) — highs around 29 °C83 °F, lows around 26 °C78 °F, about 233 mm9.2 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (February–September) — highs around 30 °C85 °F, lows 2679 to 27 °C80 °F, about 123 mm4.8 in of precipitation a month. Pack very light, breathable clothing, a sun hat and plenty of water and an umbrella or light rain jacket.
How Banda Aceh compares
Of the 110 places in Indonesia covered by World Climates, Banda Aceh is the 8th warmest by annual mean temperature and the 85th wettest by annual precipitation. See all of them on the Indonesia climate page.
Places in other countries with the most similar temperature and rainfall pattern: Sitiawan (Malaysia, Af), Malacca (Malaysia, Af) and Taiping (Malaysia, Af).
Nearby places
- Lhokseumawe 205 km · 27 °C81 °F · 2,045 mm81 in
- Langsa 315 km · 28 °C82 °F · 2,347 mm92 in
- Belawan 420 km · 28 °C82 °F · 2,477 mm98 in
- Subulussalam 427 km · 27 °C80 °F · 3,173 mm125 in
- Medan 429 km · 27 °C80 °F · 2,276 mm90 in
- Tebingtinggi 491 km · 28 °C82 °F · 2,334 mm92 in
- Pematangsiantar 504 km · 24 °C76 °F · 2,724 mm107 in
- Langkawi (Kuah) 506 km · 28 °C82 °F · 2,198 mm87 in
Frequently asked questions
What is the warmest month in Banda Aceh?
May is the warmest month in Banda Aceh, with an average high of 30 °C (87 °F) and an average low of 27 °C (80 °F).
What is the coldest month in Banda Aceh?
December is the coldest month, with an average high of 29 °C (83 °F) and an average low of 26 °C (78 °F).
When does it rain the most in Banda Aceh?
December is the wettest month with about 269 mm (10.6 in) of precipitation; July is the driest with about 91 mm (3.6 in).
What is the best time to visit Banda Aceh?
Judging by long-term averages, the most comfortable months are February and June–August.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 180 m, while Banda Aceh lies at about 9 m. Temperatures on this page were therefore adjusted by +1.1 °C2 °F using the standard lapse rate of 6.5 °C per 1,000 m.