Pontianak weather in August

In August, Pontianak sees average daytime highs of 31°C and overnight lows near 25°C, with 142 mm of rain across 17.1 wet days and about 12 hours of daylight. It is the 1st-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 8% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of August to 12 hours by month's end. Set against the rest of the year, August is Pontianak's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Pontianak's year-round climate.

Daytime high
31°
1st warmest
Overnight low
25°
9th coldest
Rainfall
142 mm
17.1 wet days
Daylight
12 hours
5:47 AM – 5:47 PM
Cloud cover
76%
3rd clearest
Wind
8 km/h
2nd windiest
Solar energy
5.37 kWh/m²
Travel score
3.8
out of 10

Pontianak is city in West Kalimantan Province, Indonesia.

Density
6,364/km²
people per km²
Founded
1771

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 31°C through the month.

A typical August day in Pontianak reaches about 31°C in the afternoon and slips back to 25°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°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)
13125
23125
33125
43125
53125
63125
73125
83125
93125
103125
113125
123125
133125
143125
153125
163125
173125
183125
193125
203125
213125
223125
233125
243125
253125
263025
273025
283025
293025
303025
313025

How August really feels in Pontianak

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.

Pontianak weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°25724.8123.4
Feb29° / 24°17119.6123.6
Mar30° / 25°19923.1123.3
Apr30° / 25°25627.4122.8
May30° / 25°22524.9123.1
Jun30° / 25°17019.8123.6
Jul30° / 25°14917.9123.9
Aug31° / 25°14217.1123.8
Sep30° / 25°19120.7123.4
Oct30° / 24°30927.6123.0
Nov29° / 24°38629122.8
Dec29° / 24°36428.2123.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 8% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 76%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
22971
32971
42971
52971
62872
72773
82773
92773
102773
112773
122674
132575
142575
152575
162476
172476
182476
192377
202377
212278
222278
232179
242179
252179
262179
272080
281981
291981
301882
311882

Chance of precipitation in August

Any precipitation

Pontianak gets around 142 mm of rain over 17.1 wet days in August, the driest month. 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 70% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
147
247
347
447
548
648
749
850
950
1051
1152
1252
1353
1454
1555
1655
1756
1857
1958
2058
2159
2260
2361
2462
2563
2665
2766
2867
2969
3070
3170

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
116237
206436
306436
406436
506436
606436
706436
806436
916336
1016336
1116336
1216336
1316336
1416336
1516336
1616336
1716336
1816237
1916237
2016237
2116138
2216138
2316039
2416039
2515940
2605941
2705941
2805842
2905842
3005842
3105842

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in August

DaylightNight

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

Days grow by about 0 minutes over August. Sunrise moves from 5:49 AM to 5:43 AM, and sunset from 5:49 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:495:49
212.05:495:49
312.05:495:49
412.05:495:49
512.05:485:48
612.05:485:48
712.05:485:48
812.05:485:48
912.05:485:48
1012.05:485:48
1112.05:485:48
1212.05:485:48
1312.05:475:47
1412.05:475:47
1512.05:475:47
1612.05:475:47
1712.05:475:47
1812.05:465:46
1912.05:465:46
2012.05:465:46
2112.05:465:46
2212.05:455:45
2312.05:455:45
2412.05:455:45
2512.05:455:45
2612.05:445:44
2712.05:445:44
2812.05:445:44
2912.05:435:43
3012.05:435:43
3112.05:435:43

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.37 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.2 kWh/m² to a high of 5.37 kWh/m² in August across the year — August's 5.37 kWh/m² sits near the top of that range.

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
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Pontianak?

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

3.8
Sightseeing
2nd-best month of the year
5.4
Beach & pool
2nd-best month of the year

August is a weaker month for outdoor sightseeing in Pontianak.

What to pack for Pontianak in August

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

In August, Pontianak sees daytime highs around 31°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 Pontianak 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 at the nearest coast (about 25 km away) is warmest in May at about 30°C and coldest in February 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
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Pontianak in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pontianak peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 18UV 15Jul 13UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul10Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Pontianak 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 Pontianak is worst in September — around 72 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (December, 14 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateSep 1369 µg/m³Dec 2114 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb20Moderate
Mar22Moderate
Apr19Moderate
May17Moderate
Jun16Moderate
Jul26Moderate
Aug54Poor
Sep72Unhealthy
Oct30Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Pontianak?

Pontianak sits at 0.0°S, 109.3°E, 2 m above sea level, in Indonesia. The nearest listed city is Sungai Raya, 94 km away.

Topography around Pontianak

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

Within 3 km, the terrain around Pontianak has only modest variations in elevation — a maximum elevation change of 17 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 27 m; within 80 km, large variations in elevation — a maximum elevation change of 827 m.

The land around Pontianak is covered by artificial surfaces (78%) within 3 km, trees (59%) and grassland (25%) within 16 km, and trees (59%) and water (31%) within 80 km.

3 km
17 m
16 km
27 m
80 km
827 m
treesgrasslandcroplandartificial surfaceswatermangroves
August weather nearby: Sungai Raya 94 km · Bengkayang 97 km · Singkawang 111 km · Pemangkat 139 km · Kota Sambas 155 km · Tebedu 165 km · Bau 185 km · Serian 192 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 Pontianak (-0.0319°, 109.325°, elevation 2 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. 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).