Tatau weather in September

In September, Tatau sees average daytime highs of 31°C and overnight lows near 24°C, with 235 mm of rain across 24.8 wet days and about 12 hours of daylight. It is the 6th-warmest and 5th-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 2% of the time in September, and the air most often feels miserable.

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 Tatau's 6th-clearest and 7th-windiest month. For the whole year in context, see Tatau's year-round climate.

Daytime high
31°
6th warmest
Overnight low
24°
7th coldest
Rainfall
235 mm
24.8 wet days
Daylight
12 hours
6:22 AM – 6:23 PM
Cloud cover
85%
6th clearest
Wind
6 km/h
7th windiest
Solar energy
5.31 kWh/m²
Travel score
2.9
out of 10

Tatau is human settlement in 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 31°C through the month.

A typical September day in Tatau reaches about 31°C in the afternoon and slips back to 24°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, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303024

How September really feels in Tatau

Once humidity and wind are folded in, September averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Tatau weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°31627.311.93.0
Feb29° / 24°22423.211.93.2
Mar30° / 24°19924.9123.1
Apr31° / 25°22926.712.12.7
May31° / 25°22124.812.12.8
Jun31° / 25°20121.812.23.1
Jul31° / 24°18921.612.23.2
Aug31° / 24°21423.112.13.1
Sep31° / 24°23524.8122.9
Oct30° / 24°28828.311.92.7
Nov30° / 24°30528.711.92.6
Dec30° / 24°3652911.82.7

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 9% of September, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11387
21387
31387
41387
51288
61288
71288
81189
91189
101189
111189
121189
131090
141189
151189
161189
171189
181189
191090
201090
211090
221090
23991
24991
25991
26991
27991
28892
29892
30892

Chance of precipitation in September

Any precipitation

Tatau gets around 235 mm of rain over 24.8 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 83% and peaks near 87% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
182
283
383
483
583
682
782
882
981
1081
1181
1281
1381
1481
1581
1681
1781
1881
1982
2082
2182
2283
2383
2484
2584
2685
2785
2886
2986
3087

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the miserable band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
13367
23367
33367
43466
53466
63466
73466
83466
93466
103466
113466
123466
133367
143367
153367
163268
173169
183169
193070
203070
213070
223070
233070
243070
253070
263070
273169
283169
293268
303268

Wind in September

Winds average 6 km/h in September.

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

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:27 AM to 6:19 AM, and sunset from 6:30 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:276:30
212.16:266:30
312.16:266:29
412.06:266:29
512.06:266:28
612.06:256:28
712.06:256:27
812.06:256:27
912.06:246:27
1012.06:246:26
1112.06:246:26
1212.06:246:25
1312.06:236:25
1412.06:236:24
1512.06:236:24
1612.06:226:23
1712.06:226:23
1812.06:226:22
1912.06:226:22
2012.06:216:22
2112.06:216:21
2212.06:216:21
2312.06:206:20
2412.06:206:20
2512.06:206:19
2612.06:206:19
2712.06:196:18
2812.06:196:18
2912.06:196:18
3012.06:196:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.31 kWh/m².

For context, solar energy here swings from a low near 4.31 kWh/m² to a high of 5.32 kWh/m² in August across the year — September's 5.31 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Tatau

In seasonPeak

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

Tatau 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 Tatau?

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

2.9
Sightseeing
7th-best month of the year
4.1
Beach & pool
7th-best month of the year

September is a weaker month for outdoor sightseeing in Tatau.

What to pack for Tatau in September

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

In September, Tatau sees daytime highs around 31°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Tatau 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 27 km away) 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
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Tatau in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September 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 Tatau peaks around March 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 15Jul 14UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov11Extreme
Dec12Extreme

Air quality in Tatau 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 Tatau is worst in September — around 18 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (November, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1418 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb11Good
Mar11Good
Apr11Good
May10Good
Jun10Good
Jul12Good
Aug14Moderate
Sep18Moderate
Oct11Good
Nov7Good
Dec7Good
Location & terrain

Where is Tatau?

Tatau sits at 2.9°N, 112.8°E, 22 m above sea level, in Malaysia. The nearest listed city is Bintulu, 38 km away.

Topography around Tatau

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

Within 3 km, the terrain around Tatau has only modest variations in elevation — a maximum elevation change of 79 m around an average of 24 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 612 m; within 80 km, large variations in elevation — a maximum elevation change of 1,068 m.

The land around Tatau is covered by trees (85%) within 3 km, trees (96%) within 16 km, and trees (77%) and water (22%) within 80 km.

3 km
79 m
16 km
612 m
80 km
1,068 m
treesgrasslandartificial surfacesbare terrainwater
September weather nearby: Bintulu 38 km · Sebauh 53 km · Selangau 71 km · Mukah 84 km · Dalat 88 km · Kapit 99 km · Belaga 106 km · Kanowit 117 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 Tatau (2.8833°, 112.85°, elevation 22 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).