Tioman weather in December

In December, Tioman sees average daytime highs of 27°C and overnight lows near 26°C, with 441 mm of rain across 25.3 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 4% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of December to 11 h 48 min by month's end. Set against the rest of the year, December is Tioman's 12th-clearest and 3rd-windiest month. For the whole year in context, see Tioman's year-round climate.

Daytime high
27°
10th warmest
Overnight low
26°
3rd coldest
Rainfall
441 mm
25.3 wet days
Daylight
11 h 48 min
7:04 AM – 6:55 PM
Cloud cover
86%
12th clearest
Wind
20 km/h
3rd windiest
Solar energy
4.38 kWh/m²
Travel score
4.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical December day in Tioman reaches about 27°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, December runs on par with November and on par with January.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12726
22726
32726
42726
52726
62726
72726
82726
92726
102726
112726
122726
132726
142726
152726
162726
172726
182726
192726
202726
212726
222726
232726
242726
252726
262726
272726
282726
292726
302726
312726

How December really feels in Tioman

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

December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tioman weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 1st-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 8% of December, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11288
21288
31288
41288
51288
61288
71288
81288
91288
101387
111387
121387
131387
141387
151387
161387
171387
181387
191387
201189
211189
221189
231189
241189
251189
261189
271387
281387
291387
301387
311585

Chance of precipitation in December

Any precipitation

Tioman gets around 441 mm of rain over 25.3 wet days in December, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 82% and peaks near 90% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
190
289
388
488
587
686
785
885
984
1084
1183
1283
1383
1482
1582
1682
1781
1881
1981
2080
2180
2279
2379
2479
2578
2677
2777
2876
2976
3075
3175

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the oppressive band about 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
107921
207921
307921
407921
508020
608020
708020
808020
908020
1008020
1108020
1208020
1308020
1408119
1508119
1608119
1708119
1808218
1918118
2018217
2118217
2218316
2318316
2418415
2528315
2628414
2728414
2828414
2928513
3028513
3128513

Wind in December

Winds average 20 km/h in December.

Across December, daily wind ranges from about 16 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
317light breeze
417light breeze
517light breeze
618light breeze
718light breeze
818light breeze
918light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1420light breeze
1520breezy
1620breezy
1721breezy
1821breezy
1921breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy
3123breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 54 min at the start of December to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:58 AM to 7:11 AM, and sunset from 6:49 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:586:49
211.86:586:49
311.86:586:49
411.86:596:50
511.86:596:50
611.87:006:50
711.87:006:51
811.87:016:51
911.87:016:52
1011.87:016:52
1111.87:026:52
1211.87:026:53
1311.87:036:53
1411.87:036:54
1511.87:046:54
1611.87:046:55
1711.87:056:55
1811.87:056:56
1911.87:066:56
2011.87:066:57
2111.87:076:57
2211.87:076:57
2311.87:086:58
2411.87:086:58
2511.87:096:59
2611.87:096:59
2711.87:097:00
2811.87:107:00
2911.87:107:01
3011.87:117:01
3111.87:117:02

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.38 kWh/m² — the year's lowest.

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 — December's 4.38 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.4Bright
164.4Bright
174.4Bright
184.4Bright
194.4Bright
204.4Bright
214.4Bright
224.3Bright
234.3Bright
244.3Bright
254.4Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.5Bright
Planning a trip in December

Hazard calendar for Tioman

In seasonPeak

In December, Tioman sits inside its pacific typhoon and rainy season 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 December a good time to visit Tioman?

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

4.0
Sightseeing
9th-best month of the year
4.1
Beach & pool
11th-best month of the year

December is a reasonable time to visit Tioman for sightseeing.

What to pack for Tioman in December

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

In December, Tioman sees daytime highs around 27°C and nights near 26°C. Pack light clothes and rain gear. Worth having: a windbreaker. About 25 days see rain.

light clothesrain geara windbreaker

Sea temperature near Tioman in December

The nearest coast averages about 28°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 11 (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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).