Sungai Raya weather in August

In August, Sungai Raya sees average daytime highs of 30°C and overnight lows near 25°C, with 164 mm of rain across 18.4 wet days and about 12 hours of daylight. It is the 3rd-warmest and 12th-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 hours at the start of August to 12 hours by month's end. Set against the rest of the year, August is Sungai Raya's 4th-clearest and 3rd-windiest month. For the whole year in context, see Sungai Raya's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
25°
10th coldest
Rainfall
164 mm
18.4 wet days
Daylight
12 hours
5:48 AM – 5:49 PM
Cloud cover
79%
4th clearest
Wind
10 km/h
3rd windiest
Solar energy
5.36 kWh/m²
Travel score
3.9
out of 10

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 Sungai Raya 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
183025
193025
203025
213025
223025
233025
243025
253025
263025
273025
283025
293025
303025
313025

How August really feels in Sungai Raya

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.

Sungai Raya weather by month

How August compares with the rest of the year at a glance. August is the 3rd-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°28725.5123.5
Feb29° / 24°18419.9123.8
Mar29° / 24°19822.1123.7
Apr30° / 25°22425.1123.2
May30° / 25°23024.7123.3
Jun30° / 25°19219.9123.7
Jul30° / 25°17318124.1
Aug30° / 25°16418.4123.9
Sep29° / 25°21021.4123.6
Oct29° / 24°32027.1123.2
Nov29° / 24°40529122.9
Dec28° / 24°39528.4123.1

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 11% of August, with mostly cloudy or overcast conditions the remaining 82%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12476
22476
32476
42377
52278
62179
72179
82080
92080
102080
111981
121981
131882
141783
151684
161684
171684
181684
191684
201684
211585
221585
231585
241486
251486
261486
271486
281486
291486
301387
311387

Chance of precipitation in August

Any precipitation

Sungai Raya gets around 164 mm of rain over 18.4 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 60% and peaks near 72% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
152
252
352
452
552
653
754
854
955
1056
1157
1258
1358
1459
1560
1660
1761
1861
1962
2062
2163
2264
2364
2465
2566
2667
2768
2869
2970
3071
3172

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17030
27030
37030
47030
56931
66931
76931
86931
97030
107030
117030
127030
137030
147030
157030
167030
177030
186931
196931
206931
216931
226832
236832
246832
256733
266733
276733
286733
296733
306733
316832

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 5:50 AM to 5:44 AM, and sunset from 5:51 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:505:51
212.05:495:51
312.05:495:51
412.05:495:51
512.05:495:51
612.05:495:51
712.05:495:51
812.05:495:51
912.05:495:51
1012.05:495:50
1112.05:495:50
1212.05:485:50
1312.05:485:50
1412.05:485:50
1512.05:485:49
1612.05:485:49
1712.05:485:49
1812.05:475:49
1912.05:475:48
2012.05:475:48
2112.05:475:48
2212.05:475:48
2312.05:465:47
2412.05:465:47
2512.05:465:47
2612.05:455:46
2712.05:455:46
2812.05:455:46
2912.05:455:46
3012.05:445:45
3112.05:445:45

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.36 kWh/m².

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 5.39 kWh/m² in March across the year — August's 5.36 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
185.4Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Sungai Raya?

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

3.9
Sightseeing
2nd-best month of the year
5.3
Beach & pool
2nd-best month of the year

August is a weaker month for outdoor sightseeing in Sungai Raya.

What to pack for Sungai Raya in August

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

In August, Sungai Raya sees daytime highs around 30°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Sungai Raya 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 February near 28°C.

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

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Sungai Raya 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 Sungai Raya peaks around February 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 16Jul 12UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Sungai Raya 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 Sungai Raya is worst in September — around 42 µg/m³ PM2.5 (poor), about 4.2× the cleanest month (January, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1440 µg/m³Jan 1110 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr14Moderate
May13Moderate
Jun13Moderate
Jul15Moderate
Aug31Moderate
Sep42Poor
Oct23Moderate
Nov12Moderate
Dec10Good
Location & terrain

Where is Sungai Raya?

Sungai Raya sits at 0.7°N, 108.9°E, 9 m above sea level, in Indonesia. The nearest listed city is Singkawang, 25 km away.

Topography around Sungai Raya

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

Within 3 km, the terrain around Sungai Raya has only modest variations in elevation — a maximum elevation change of 186 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 323 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,381 m.

The land around Sungai Raya is covered by trees (47%) and water (33%) within 3 km, water (48%) and trees (43%) within 16 km, and trees (49%) and water (46%) within 80 km.

3 km
186 m
16 km
323 m
80 km
1,381 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
August weather nearby: Singkawang 25 km · Pemangkat 52 km · Bengkayang 61 km · Kota Sambas 86 km · Pontianak 94 km · Lundu 151 km · Bau 160 km · Tebedu 167 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 Sungai Raya (0.7°, 108.9°, 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. 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).