Banda Aceh climate

Name: Banda Aceh
Address: ID

Banda Aceh is warmest in June, with average highs of 30 °C, and coldest in December, when nights average 24 °C. November is the wettest month (341 mm) and February the driest (100 mm). Figures are 1991–2020 climate normals.

Across a full year Banda Aceh averages 2,224 mm of rain and 364 days above 25 °C.

Indonesia · population 267,962 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month June 30 °C
Coldest month December 24 °C
Driest month February 100 mm
Wettest month November 341 mm
Least cloud February 74 % cloud
Hottest on record August 35 °C
Coldest on record February 21 °C
Warmest sea May 30 °C

What to expectBanda Aceh through the year

Banda Aceh changes little through the year. Average daily highs stay between 28 and 30 °C, so no month stands out as a season in the way it would further from the equator.

Counted across a normal year, 364 days a year reach 25 °C, 115 of them reach 30 °C. The warmest reading in the 1991–2020 record is 35 °C, in August.

Rain is strongly seasonal. November averages 341 mm against 100 mm in February — 3.4 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Banda Aceh is warmest in May at 30 °C and coldest in December at 29 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	28.8 °C	136 mm	77 %
February	29.4 °C	100 mm	74 %
March	29.7 °C	157 mm	78 %
April	29.8 °C	199 mm	85 %
May	29.9 °C	207 mm	86 %
June	30.2 °C	106 mm	83 %
July	30.1 °C	117 mm	84 %
August	29.9 °C	148 mm	86 %
September	29.4 °C	184 mm	89 %
October	28.7 °C	269 mm	90 %
November	28.3 °C	341 mm	91 %
December	28.4 °C	259 mm	85 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C
January	28.8 °C	23.8 °C	25.9 °C	32.4 °C	21.3 °C	31	2
February	29.4 °C	23.8 °C	26.3 °C	33.9 °C	21.0 °C	28	7
March	29.7 °C	24.2 °C	26.7 °C	33.4 °C	21.9 °C	31	12
April	29.8 °C	24.7 °C	26.8 °C	32.9 °C	23.1 °C	30	13
May	29.9 °C	25.1 °C	27.1 °C	33.4 °C	23.2 °C	31	16
June	30.2 °C	25.1 °C	27.3 °C	33.7 °C	22.3 °C	30	18
July	30.1 °C	24.8 °C	27.1 °C	34.6 °C	22.3 °C	31	18
August	29.9 °C	24.6 °C	26.8 °C	34.7 °C	22.6 °C	31	15
September	29.4 °C	24.4 °C	26.5 °C	33.7 °C	22.5 °C	30	10
October	28.7 °C	24.0 °C	25.9 °C	32.2 °C	22.1 °C	31	4
November	28.3 °C	23.9 °C	25.6 °C	30.8 °C	21.7 °C	30	1
December	28.4 °C	23.8 °C	25.7 °C	30.5 °C	21.5 °C	31	1

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	136 mm	15	12 h/day	77 %	85 %	14 km/h	28.6 °C
February	100 mm	13	12 h/day	74 %	84 %	14 km/h	28.8 °C
March	157 mm	19	12 h/day	78 %	85 %	12 km/h	29.3 °C
April	199 mm	23	12 h/day	85 %	87 %	10 km/h	29.7 °C
May	207 mm	19	12 h/day	86 %	85 %	13 km/h	29.9 °C
June	106 mm	13	12 h/day	83 %	82 %	16 km/h	29.8 °C
July	117 mm	15	12 h/day	84 %	80 %	17 km/h	29.6 °C
August	148 mm	17	12 h/day	86 %	82 %	16 km/h	29.4 °C
September	184 mm	19	12 h/day	89 %	84 %	14 km/h	29.1 °C
October	269 mm	24	12 h/day	90 %	88 %	13 km/h	28.8 °C
November	341 mm	26	12 h/day	91 %	90 %	11 km/h	28.6 °C
December	259 mm	21	12 h/day	85 %	88 %	13 km/h	28.5 °C

How Banda Aceh compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Banda Aceh	30 °C	24 °C	2,224 mm	364
Lhokseumawe · Indonesia	30 °C	24 °C	2,259 mm	365
Langsa · Indonesia	30 °C	23 °C	2,115 mm	364
Binjai · Indonesia	31 °C	21 °C	3,209 mm	363
Sunggal · Indonesia	30 °C	22 °C	3,176 mm	364
Medan · Indonesia	30 °C	22 °C	3,278 mm	364
Percut · Indonesia	30 °C	23 °C	3,221 mm	364

Where Banda Aceh ranks

Ranking	Position	Value
Warmest sea temperatures in Asia in February	26th of 50	29 °C
Warmest sea temperatures in Asia in March	31st of 50	29 °C
Warmest sea temperatures in the world in March	38th of 50	29 °C
Warmest sea temperatures in the world in February	43rd of 50	29 °C
Warmest sea temperatures in Asia year-round	44th of 50	29 °C
Warmest sea temperatures in the world year-round	46th of 50	29 °C

Planning a trip? See the best time to visit Banda Aceh.

QuestionsCommon questions about Banda Aceh’s climate

When is the best time to visit Banda Aceh?

That depends on what you want, so the honest answer is a comparison rather than a single month. October, November, December sit closest to 20 °C on average, June is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Banda Aceh get?

In June, the warmest month, daily highs average 30 °C. About 115 days a year pass 30 °C. The highest value in the 1991–2020 record is 35 °C.

How cold does it get in winter?

Nights average 24 °C in December, the coldest month. Freezing nights are not part of a normal year here.

Which month is wettest in Banda Aceh?

November, averaging 341 mm over 26 days with rain. The driest month is February with 100 mm. The year as a whole averages 2,224 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Banda Aceh rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 5.542°, 95.333° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.