Simunjan weather in August

In August, Simunjan sees average daytime highs of 32°C and overnight lows near 24°C, with 207 mm of rain across 21.8 wet days and about 12 hours of daylight. It is the 2nd-warmest and 10th-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 5% of the time in August, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of August to 12 hours by month's end. Set against the rest of the year, August is Simunjan's 3rd-clearest and 4th-windiest month. For the whole year in context, see Simunjan's year-round climate.

Daytime high
32°
2nd warmest
Overnight low
24°
9th coldest
Rainfall
207 mm
21.8 wet days
Daylight
12 hours
6:40 AM – 6:42 PM
Cloud cover
80%
3rd clearest
Wind
6 km/h
4th windiest
Solar energy
5.37 kWh/m²
Travel score
2.8
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 Simunjan 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 30°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 Simunjan

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.

Simunjan weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 24°38528.711.92.7
Feb30° / 24°29224.4122.8
Mar31° / 24°26627.9122.5
Apr32° / 24°26127.5122.3
May32° / 25°23726.212.12.4
Jun32° / 24°19521.912.12.8
Jul32° / 24°17919.912.13.0
Aug32° / 24°20721.8122.8
Sep32° / 24°25524.7122.6
Oct31° / 24°30828.7122.4
Nov31° / 24°32929.111.92.3
Dec31° / 24°37629.311.92.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% 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 85%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12080
22080
32080
42080
51981
61981
71981
81981
91981
101981
111783
121783
131783
141783
151684
161486
171486
181486
191486
201486
211288
221288
231288
241288
251288
261189
271189
281189
291189
301189
311189

Chance of precipitation in August

Any precipitation

Simunjan gets around 207 mm of rain over 21.8 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 70% and peaks near 82% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
160
260
360
461
561
662
762
863
964
1064
1165
1266
1367
1468
1569
1670
1771
1872
1973
2074
2175
2276
2377
2478
2578
2679
2780
2881
2981
3082
3182

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the miserable band about 52% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
125048
215148
315148
415148
515148
615148
715148
815148
915148
1015148
1115148
1215148
1315049
1415049
1514949
1614851
1714851
1814752
1914653
2014653
2114554
2214455
2314455
2414356
2514257
2614257
2714158
2804159
2904159
3004159
3104258

Wind in August

Winds average 6 km/h in August.

Across August, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

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

Days shrink by about 6 minutes over August. Sunrise moves from 6:41 AM to 6:36 AM, and sunset from 6:45 PM to 6:38 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:416:45
212.16:416:45
312.16:416:45
412.16:416:45
512.16:416:44
612.16:416:44
712.16:416:44
812.16:416:44
912.16:416:44
1012.16:416:44
1112.16:406:44
1212.06:406:43
1312.06:406:43
1412.06:406:43
1512.06:406:43
1612.06:406:42
1712.06:406:42
1812.06:396:42
1912.06:396:42
2012.06:396:41
2112.06:396:41
2212.06:396:41
2312.06:386:41
2412.06:386:40
2512.06:386:40
2612.06:386:40
2712.06:376:39
2812.06:376:39
2912.06:376:39
3012.06:366:38
3112.06:366:38

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 4.38 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 Simunjan?

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

2.8
Sightseeing
2nd-best month of the year
4.5
Beach & pool
2nd-best month of the year

August is a weaker month for outdoor sightseeing in Simunjan.

What to pack for Simunjan in August

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

In August, Simunjan sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

Sea temperature near Simunjan in August

The nearest coast averages about 30°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 30 km away) is warmest in June 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
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Simunjan 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 Simunjan peaks around February 19 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 19UV 15Jul 13UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Simunjan 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 Simunjan is worst in September — around 32 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (January, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1131 µg/m³Jan 1510 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr13Moderate
May12Moderate
Jun13Moderate
Jul21Moderate
Aug29Moderate
Sep32Moderate
Oct18Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Simunjan?

Simunjan sits at 1.4°N, 110.8°E, 7 m above sea level, in Malaysia. The nearest listed city is Serian, 32 km away.

Topography around Simunjan

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

Within 3 km, the terrain around Simunjan has only modest variations in elevation — a maximum elevation change of 23 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 391 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,408 m.

The land around Simunjan is covered by trees (66%) within 3 km, trees (85%) within 16 km, and trees (71%) and water (25%) within 80 km.

3 km
23 m
16 km
391 m
80 km
1,408 m
treesshrubsgrasslandartificial surfaceswatermangroves
August weather nearby: Serian 32 km · Siburan 39 km · Kuching 50 km · Tebedu 58 km · Bau 67 km · Saratok 76 km · Sri Aman 80 km · Betong 85 km

Malaysia travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / G / M
230 V · 50 Hz
Prices
≈ 32% of US
price level, 2025
GDP per capita
$13,125
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
95%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
22.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 581
Religion
Muslim 64%Buddhist 19%Christian 9%Hindu 6%

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 Simunjan (1.3833°, 110.75°, elevation 7 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).