Lawas weather in September

In September, Lawas sees average daytime highs of 28°C and overnight lows near 20°C, with 320 mm of rain across 25 wet days and about 12 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 2% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Lawas's 8th-clearest and 2nd-windiest month. For the whole year in context, see Lawas's year-round climate.

Daytime high
28°
6th warmest
Overnight low
20°
4th coldest
Rainfall
320 mm
25 wet days
Daylight
12 hours
6:12 AM – 6:13 PM
Cloud cover
86%
8th clearest
Wind
4 km/h
2nd windiest
Solar energy
5.43 kWh/m²
Travel score
3.5
out of 10

Lawas is place in Sarawak, Malaysia.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical September day in Lawas reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12820
22820
32820
42820
52820
62820
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820

Lawas weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°3572711.73.7
Feb28° / 20°30324.411.83.7
Mar28° / 21°35827.2123.4
Apr29° / 21°38928.412.13.1
May29° / 21°3712712.23.3
Jun29° / 20°31323.512.33.7
Jul28° / 20°28422.512.33.9
Aug29° / 20°29322.912.23.8
Sep28° / 20°32025123.5
Oct28° / 20°36128.511.93.3
Nov28° / 20°39629.211.83.1
Dec28° / 20°39428.811.73.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 6% of September, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1991
2991
3892
4892
5892
6892
7793
8793
9793
10694
11793
12793
13793
14793
15793
16793
17793
18793
19793
20793
21892
22892
23892
24892
25892
26892
27892
28793
29793
30793

Chance of precipitation in September

Any precipitation

Lawas gets around 320 mm of rain over 25 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 84% and peaks near 87% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
184
284
384
484
584
683
783
883
983
1083
1183
1283
1383
1482
1582
1682
1782
1882
1982
2083
2183
2283
2384
2484
2585
2685
2785
2886
2986
3087

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
15545
25545
35545
45545
55644
65644
75644
85743
95743
105743
115743
125644
135644
145644
155644
165644
175644
185545
195545
205545
215446
225446
235446
245347
255347
265446
275446
285446
295446
305446

Wind in September

Winds average 4 km/h in September.

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

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

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

Days shrink by about 6 minutes over September. Sunrise moves from 6:15 AM to 6:09 AM, and sunset from 6:21 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:156:21
212.16:156:20
312.16:156:20
412.16:156:19
512.16:146:19
612.16:146:18
712.16:146:18
812.16:146:18
912.16:146:17
1012.16:136:17
1112.06:136:16
1212.06:136:16
1312.06:136:15
1412.06:126:14
1512.06:126:14
1612.06:126:13
1712.06:126:13
1812.06:116:12
1912.06:116:12
2012.06:116:11
2112.06:116:11
2212.06:116:10
2312.06:106:10
2412.06:106:09
2512.06:106:09
2612.06:106:08
2712.06:096:08
2812.06:096:07
2912.06:096:07
3012.06:096:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.43 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 5.48 kWh/m² in August across the year — September's 5.43 kWh/m² sits near the top of that range.

0246151015202530
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
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Lawas

In seasonPeak

In September, Lawas sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Lawas sits in the Pacific typhoon belt; the season peaks July–October.

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

Is September a good time to visit Lawas?

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

3.5
Sightseeing
6th-best month of the year
4.2
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Lawas.

What to pack for Lawas in September

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

In September, Lawas sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Lawas in September

The nearest coast averages about 30°C in September — 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
Feb28Warm
Mar28Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Lawas in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lawas peaks around April 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 13 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeApr 11UV 15Dec 13UV 12
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May14Extreme
Jun13Extreme
Jul12Extreme
Aug14Extreme
Sep14Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Lawas in September

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Lawas is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1515 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar11Good
Apr11Good
May11Good
Jun11Good
Jul12Good
Aug12Moderate
Sep15Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Lawas?

Lawas sits at 4.9°N, 115.4°E, 10 m above sea level, in Malaysia. The nearest listed city is Sipitang, 29 km away.

Topography around Lawas

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

Within 3 km, the terrain around Lawas has only modest variations in elevation — a maximum elevation change of 139 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,156 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,031 m.

The land around Lawas is covered by trees (79%) within 3 km, trees (75%) within 16 km, and trees (71%) and water (24%) within 80 km.

3 km
139 m
16 km
1,156 m
80 km
2,031 m
treesgrasslandartificial surfaceswatermangroves
September weather nearby: Sipitang 29 km · Bangar 41 km · Muara 42 km · Serasa 43 km · Mentiri 45 km · Limbang 46 km · Labuan 50 km · Bandar Labuan 50 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 Lawas (4.8604°, 115.409°, elevation 10 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).