Tioman weather in September

In September, Tioman sees average daytime highs of 28°C and overnight lows near 27°C, with 108 mm of rain across 18.9 wet days and about 12 hours of daylight. It is the 5th-warmest and 11th-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 11% of the time in September, and the air most often feels oppressive.

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 Tioman's 8th-clearest and 8th-windiest month. For the whole year in context, see Tioman's year-round climate.

Daytime high
28°
5th warmest
Overnight low
27°
7th coldest
Rainfall
108 mm
18.9 wet days
Daylight
12 hours
6:57 AM – 6:58 PM
Cloud cover
75%
8th clearest
Wind
15 km/h
8th windiest
Solar energy
5.83 kWh/m²
Travel score
4.5
out of 10

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 Tioman reaches about 28°C in the afternoon and slips back to 27°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs on par with August and on par with October.

24°26°28°30°32°151015202530
Avg high (°C)Avg low (°C)
12827
22827
32827
42827
52827
62827
72827
82827
92827
102827
112827
122827
132827
142827
152827
162827
172827
182827
192827
202827
212827
222827
232827
242827
252827
262827
272827
282827
292827
302827

How September really feels in Tioman

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.

Tioman weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°24417.911.95.1
Feb27° / 26°10011.911.95.8
Mar28° / 26°12215.7125.4
Apr28° / 27°13321.412.14.1
May29° / 27°14522.912.13.9
Jun29° / 27°1232112.24.1
Jul28° / 27°11619.312.14.5
Aug28° / 27°11119.312.14.6
Sep28° / 27°10818.9124.5
Oct28° / 26°18524.911.93.9
Nov28° / 26°34727.911.93.5
Dec27° / 26°44125.311.84.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 75%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13169
23169
33169
43070
53070
62971
72872
82872
92773
102674
112674
122674
132575
142377
152476
162476
172377
182377
192278
202179
212179
222080
232179
242179
252179
262179
272179
282080
292179
302179

Chance of precipitation in September

Any precipitation

Tioman gets around 108 mm of rain over 18.9 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 63% and peaks near 69% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
169
269
368
467
566
666
765
864
963
1062
1161
1261
1360
1459
1559
1659
1759
1859
1959
2060
2161
2261
2362
2463
2563
2664
2765
2866
2967
3068

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

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

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
15050
25149
35149
45149
55248
65248
75248
85248
95248
105248
115248
125248
135149
145149
155149
165050
175050
184951
194951
204951
215050
225050
235050
245149
255248
265347
275446
285545
295644
305743

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2813light breeze
2913light breeze
3013light breeze

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 7:01 AM to 6:53 AM, and sunset from 7:05 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.17:017:05
212.17:017:04
312.07:017:04
412.07:017:03
512.07:007:03
612.07:007:03
712.07:007:02
812.07:007:02
912.06:597:01
1012.06:597:01
1112.06:597:00
1212.06:587:00
1312.06:586:59
1412.06:586:59
1512.06:576:59
1612.06:576:58
1712.06:576:58
1812.06:576:57
1912.06:566:57
2012.06:566:56
2112.06:566:56
2212.06:556:55
2312.06:556:55
2412.06:556:55
2512.06:556:54
2612.06:546:54
2712.06:546:53
2812.06:546:53
2912.06:546:52
3012.06:536:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.83 kWh/m².

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 6.12 kWh/m² in March across the year — September's 5.83 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Tioman

In seasonPeak

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

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

Tioman's rainy season runs November–January, when most of the year's rain falls.

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

Is September a good time to visit Tioman?

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

4.5
Sightseeing
5th-best month of the year
5.2
Beach & pool
5th-best month of the year

September is a reasonable time to visit Tioman for sightseeing.

What to pack for Tioman in September

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

In September, Tioman sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

light clothesrain gearsun protection

Sea temperature near Tioman in September

The nearest coast averages about 29°C in September — 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 January near 27°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
Jan27Warm
Feb27Warm
Mar28Tropical
Apr30Tropical
May30Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Tropical

UV index in Tioman 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 Tioman peaks around February 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeFeb 22UV 15Jun 23UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Very high
Jul10Very high
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Tioman 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 Tioman is worst in September — around 23 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (March, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1522 µg/m³Mar 208 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar8Good
Apr9Good
May12Good
Jun14Moderate
Jul17Moderate
Aug18Moderate
Sep23Moderate
Oct17Moderate
Nov8Good
Dec9Good
Location & terrain

Where is Tioman?

Tioman sits at 2.8°N, 104.2°E, 0 m above sea level, in Malaysia. The nearest listed city is Mersing, 54 km away.

KluangLabisUlu Tiram

Topography around Tioman

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

Within 3 km, the terrain around Tioman has large variations in elevation — a maximum elevation change of 986 m around an average of 498 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,020 m; within 80 km, large variations in elevation — a maximum elevation change of 1,017 m.

The land around Tioman is covered by trees (100%) within 3 km, water (83%) within 16 km, and water (84%) within 80 km.

3 km
986 m
16 km
1,020 m
80 km
1,017 m
treesgrasslandwater
September weather nearby: Mersing 54 km · Pekan 116 km · Kampung Batu Empat 117 km · Bandar Tenggara 119 km · Kota Tinggi 120 km · Kluang 126 km · Labis 135 km · Ulu Tiram 137 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 Tioman (2.7825°, 104.17°, elevation 0 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).