Banda Aceh weather in August

In August, Banda Aceh sees average daytime highs of 30°C and overnight lows near 25°C, with 159 mm of rain across 17.4 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 6% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 12 min at the start of August to 12 h 06 min by month's end. Set against the rest of the year, August is Banda Aceh's 6th-clearest and 2nd-windiest month. For the whole year in context, see Banda Aceh's year-round climate.

Daytime high
30°
4th warmest
Overnight low
25°
8th coldest
Rainfall
159 mm
17.4 wet days
Daylight
12 h 12 min
6:37 AM – 6:48 PM
Cloud cover
83%
6th clearest
Wind
12 km/h
2nd windiest
Solar energy
5.26 kWh/m²
Travel score
4.1
out of 10

Banda Aceh is city in Aceh Province, Indonesia.

Density
4,367/km²
people per km²
Founded
1205

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical August day in Banda Aceh reaches about 30°C in the afternoon and slips back to 25°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, August runs on par with July and on par with September.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13025
23025
33025
43025
53025
63025
73025
83025
93025
103025
113025
123025
133025
143025
153025
163025
173025
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312924

How August really feels in Banda Aceh

Once humidity and wind are folded in, August averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Banda Aceh weather by month

How August compares with the rest of the year at a glance. August is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°1371511.74.8
Feb29° / 24°961311.84.7
Mar30° / 25°15619124.0
Apr30° / 25°20224.412.13.3
May30° / 25°21920.412.23.7
Jun30° / 25°11314.512.34.2
Jul30° / 25°12515.112.34.3
Aug30° / 25°15917.412.24.1
Sep29° / 24°19319.2123.9
Oct28° / 24°28224.611.93.6
Nov28° / 24°36126.111.73.4
Dec28° / 24°2632111.74.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 8% of August, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11783
21882
31882
41882
51882
61882
71981
81981
91882
101882
111783
121684
131585
141585
151585
161486
171387
181288
191288
201288
211288
221189
231189
24991
25991
26991
27991
28991
29991
30892
31892

Chance of precipitation in August

Any precipitation

Banda Aceh gets around 159 mm of rain over 17.4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 56% and peaks near 64% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
146
246
346
446
547
647
748
849
950
1051
1152
1253
1354
1455
1557
1658
1759
1860
1961
2061
2162
2263
2363
2464
2564
2664
2764
2864
2964
3064
3164

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the oppressive band about 96% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
12953
21963
31963
41963
51963
61963
71963
81963
91963
101963
111963
121963
131963
141954
151954
161954
171954
181954
191954
200964
210964
220964
230964
240964
250964
260964
270964
280964
290964
300964
310973

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 10 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112calm
1212calm
1312calm
1412calm
1512calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 12 min at the start of August to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over August. Sunrise moves from 6:37 AM to 6:35 AM, and sunset from 6:52 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:376:52
212.26:376:52
312.26:376:52
412.26:386:52
512.26:386:51
612.26:386:51
712.26:386:51
812.26:386:51
912.26:386:50
1012.26:386:50
1112.26:386:50
1212.26:376:50
1312.26:376:49
1412.26:376:49
1512.26:376:49
1612.26:376:48
1712.26:376:48
1812.26:376:48
1912.26:376:47
2012.26:376:47
2112.26:376:46
2212.26:376:46
2312.26:376:46
2412.16:366:45
2512.16:366:45
2612.16:366:44
2712.16:366:44
2812.16:366:43
2912.16:366:43
3012.16:366:43
3112.16:356:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.26 kWh/m².

For context, solar energy here swings from a low near 4.16 kWh/m² to a high of 5.72 kWh/m² in March across the year — August's 5.26 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in August

Hazard calendar for Banda Aceh

In seasonPeak

None of Banda Aceh's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Banda Aceh sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Banda Aceh?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

4.1
Sightseeing
5th-best month of the year
5.4
Beach & pool
5th-best month of the year

August is a reasonable time to visit Banda Aceh for sightseeing.

What to pack for Banda Aceh in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Banda Aceh sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Banda Aceh in August

The nearest coast averages about 29°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in May at about 30°C and coldest in December near 29°C.

The water stays above 20°C all year — warm enough for a swim any month.

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Banda Aceh in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Banda Aceh peaks around February 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 20UV 14Dec 13UV 10
UV index (midday)Level
Jan11Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in Banda Aceh in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Banda Aceh is worst in March — around 17 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodMar 1717 µg/m³Dec 1212 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar17Moderate
Apr15Moderate
May13Moderate
Jun13Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct13Moderate
Nov12Moderate
Dec12Good
Location & terrain

Where is Banda Aceh?

Banda Aceh sits at 5.5°N, 95.3°E, 9 m above sea level, in Indonesia. The nearest listed city is Sabang, 39 km away.

Langsa

Topography around Banda Aceh

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Banda Aceh.

Within 3 km, the terrain around Banda Aceh has only modest variations in elevation — a maximum elevation change of 14 m around an average of 6 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,320 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,292 m.

The land around Banda Aceh is covered by artificial surfaces (68%) and trees (22%) within 3 km, trees (41%) and water (34%) within 16 km, and water (66%) and trees (29%) within 80 km.

3 km
14 m
16 km
1,320 m
80 km
2,292 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Sabang 39 km · Sigli 72 km · Reuleuet 111 km · Bireun 156 km · Meulaboh 179 km · Lhokseumawe 205 km · Blangpidie 261 km · Langsa 315 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Banda Aceh (5.5417°, 95.3333°, elevation 9 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).