Sintang weather in August

In August, Sintang sees average daytime highs of 32°C and overnight lows near 24°C, with 165 mm of rain across 17.5 wet days and about 12 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 7% 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 Sintang's 3rd-clearest and 1st-windiest month. For the whole year in context, see Sintang's year-round climate.

Daytime high
32°
1st warmest
Overnight low
24°
2nd coldest
Rainfall
165 mm
17.5 wet days
Daylight
12 hours
5:38 AM – 5:38 PM
Cloud cover
77%
3rd clearest
Wind
5 km/h
1st windiest
Solar energy
5.14 kWh/m²
Travel score
3.2
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical August day in Sintang reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°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)
13224
23224
33224
43224
53224
63224
73224
83224
93224
103224
113224
123224
133224
143224
153224
163224
173224
183224
193224
203224
213224
223224
233224
243224
253224
263224
273224
283224
293224
303224
313224

How August really feels in Sintang

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.

Sintang weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°27526.7122.6
Feb31° / 24°22923122.7
Mar31° / 24°26626.9122.5
Apr32° / 24°26627.5122.3
May32° / 24°24325122.6
Jun32° / 24°18620123.1
Jul32° / 24°16017.5123.4
Aug32° / 24°16517.5123.2
Sep32° / 24°23721.7122.8
Oct31° / 24°31327.8122.4
Nov31° / 24°31828.6122.3
Dec31° / 24°26728.2122.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22476
32476
42476
52476
62377
72377
82377
92377
102278
112278
122278
132278
142179
152179
162179
172080
182080
191981
201981
211882
221882
231882
241882
251882
261783
271783
281783
291783
301783
311882

Chance of precipitation in August

Any precipitation

Sintang gets around 165 mm of rain over 17.5 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 57% and peaks near 69% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
148
248
348
448
549
649
750
851
951
1052
1152
1253
1354
1455
1555
1656
1757
1858
1959
2059
2160
2261
2362
2463
2564
2665
2766
2867
2968
3068
3169

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 55% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
125840
225840
325840
425939
525939
625939
725939
825939
925939
1025939
1135839
1235839
1335839
1435740
1535740
1645640
1745541
1845541
1945541
2045442
2135542
2235443
2335443
2435344
2535245
2635146
2735047
2835047
2924948
3034849
3134849

Wind in August

Winds average 5 km/h in August, the windiest month of the year.

Across August, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:40 AM to 5:34 AM, and sunset from 5:40 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:405:40
212.05:405:40
312.05:405:40
412.05:405:40
512.05:405:40
612.05:405:40
712.05:395:40
812.05:395:40
912.05:395:39
1012.05:395:39
1112.05:395:39
1212.05:395:39
1312.05:395:39
1412.05:385:39
1512.05:385:38
1612.05:385:38
1712.05:385:38
1812.05:385:38
1912.05:375:37
2012.05:375:37
2112.05:375:37
2212.05:375:37
2312.05:365:36
2412.05:365:36
2512.05:365:36
2612.05:365:36
2712.05:355:35
2812.05:355:35
2912.05:355:35
3012.05:345:34
3112.05:345:34

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.14 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.25 kWh/m² to a high of 5.14 kWh/m² in August across the year — August's 5.14 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in August

Is August a good time to visit Sintang?

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

3.2
Sightseeing
2nd-best month of the year
5.1
Beach & pool
2nd-best month of the year

August is a weaker month for outdoor sightseeing in Sintang.

What to pack for Sintang in August

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

In August, Sintang sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Sintang 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 Sintang peaks around February 20 at about 16 (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 20UV 16Jul 13UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec12Extreme

Air quality in Sintang 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 Sintang is worst in September — around 61 µg/m³ PM2.5 (unhealthy), about 4.7× the cleanest month (January, 13 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1458 µg/m³Jan 1513 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb14Moderate
Mar16Moderate
Apr16Moderate
May16Moderate
Jun15Moderate
Jul21Moderate
Aug43Poor
Sep61Unhealthy
Oct27Moderate
Nov15Moderate
Dec14Moderate
Location & terrain

Where is Sintang?

Sintang sits at 0.1°N, 111.5°E, 24 m above sea level, in Indonesia. The nearest listed city is Engkilili, 121 km away.

Topography around Sintang

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

Within 3 km, the terrain around Sintang has only modest variations in elevation — a maximum elevation change of 39 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 814 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,640 m.

The land around Sintang is covered by trees (53%) and artificial surfaces (23%) within 3 km, trees (90%) within 16 km, and trees (98%) within 80 km.

3 km
39 m
16 km
814 m
80 km
1,640 m
treesgrasslandartificial surfacesbare terrainwater
August weather nearby: Engkilili 121 km · Sri Aman 131 km · Betong 148 km · Serian 160 km · Tebedu 165 km · Simunjan 168 km · Saratok 186 km · Siburan 189 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 Sintang (0.0667°, 111.5°, elevation 24 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. 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).