Gemas weather in December

In December, Gemas sees average daytime highs of 30°C and overnight lows near 24°C, with 215 mm of rain across 24.1 wet days and about 11.9 hours of daylight. It is the 12th-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 1% 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 54 min by month's end. Set against the rest of the year, December is Gemas's 11th-clearest and 3rd-windiest month. For the whole year in context, see Gemas's year-round climate.

Daytime high
30°
12th warmest
Overnight low
24°
2nd coldest
Rainfall
215 mm
24.1 wet days
Daylight
11 h 54 min
7:10 AM – 7:01 PM
Cloud cover
90%
11th clearest
Wind
8 km/h
3rd windiest
Solar energy
4.13 kWh/m²
Travel score
3.1
out of 10

Gemas is human settlement in Malaysia.

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical December day in Gemas reaches about 30°C in the afternoon and slips back to 24°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°C. Set against its neighbours, December runs on par with November and on par with January.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13024
23024
33024
43024
53024
63024
73024
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283024
293024
303024
313024

How December really feels in Gemas

Once humidity and wind are folded in, December 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 December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Gemas weather by month

How December compares with the rest of the year at a glance. December is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 24°12316.911.93.7
Feb32° / 24°8012.711.93.4
Mar33° / 24°15121.4122.6
Apr32° / 25°18325.312.12.3
May32° / 25°16724.812.12.5
Jun32° / 25°1232112.12.9
Jul31° / 24°12221.712.13.1
Aug31° / 24°13422.412.13.0
Sep31° / 24°13222.6122.9
Oct31° / 24°17924.711.92.7
Nov31° / 24°24927.611.92.5
Dec30° / 24°21524.111.93.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 5% of December, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4694
5793
6793
7793
8694
9694
10694
11694
12694
13694
14694
15595
16595
17595
18595
19595
20595
21595
22595
23694
24694
25793
26793
27793
28892
29892
30991
311090

Chance of precipitation in December

Any precipitation

Gemas gets around 215 mm of rain over 24.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 87% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
187
286
386
485
584
684
783
882
982
1082
1181
1281
1380
1480
1579
1679
1778
1877
1976
2076
2175
2274
2373
2472
2571
2670
2769
2867
2966
3065
3164

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 (%)
117029
217128
317326
417425
517524
617623
717722
817722
907921
1008020
1108020
1208020
1308119
1408119
1508218
1608218
1718118
1818217
1918217
2018316
2128315
2228315
2328414
2438413
2538512
2638512
2748511
2848610
2958510
3058510
315869

Wind in December

Winds average 8 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
3110calm

Sunrise & sunset in December

DaylightNight

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

Days grow by about 0 minutes over December. Sunrise moves from 7:03 AM to 7:17 AM, and sunset from 6:55 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.97:036:55
211.97:046:55
311.97:046:56
411.97:056:56
511.97:056:57
611.97:066:57
711.97:066:57
811.97:066:58
911.97:076:58
1011.97:076:59
1111.97:086:59
1211.97:086:59
1311.97:097:00
1411.97:097:00
1511.97:107:01
1611.97:107:01
1711.97:117:02
1811.97:117:02
1911.97:127:03
2011.97:127:03
2111.97:137:04
2211.97:137:04
2311.97:137:05
2411.97:147:05
2511.97:147:05
2611.97:157:06
2711.97:157:06
2811.97:167:07
2911.97:167:07
3011.97:177:08
3111.97:177:08

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.13 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.13 kWh/m² to a high of 5.44 kWh/m² in March across the year — December's 4.13 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.2Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.2Bright
104.2Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.3Bright
Planning a trip in December

Hazard calendar for Gemas

In seasonPeak

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

Gemas 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 December a good time to visit Gemas?

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

3.1
Sightseeing
3rd-best month of the year
4.4
Beach & pool
7th-best month of the year

December is a weaker month for outdoor sightseeing in Gemas.

What to pack for Gemas in December

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

In December, Gemas sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 24 days see rain.

light clothesrain gear

Sea temperature near Gemas in December

The nearest coast averages about 29°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 57 km away) is warmest in May at about 30°C and coldest in January 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 Gemas 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 Gemas peaks around February 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 20UV 15Jul 12UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Gemas 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 Gemas is worst in September — around 39 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (February, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1638 µg/m³Feb 816 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb16Moderate
Mar22Moderate
Apr28Moderate
May28Moderate
Jun28Moderate
Jul30Moderate
Aug34Moderate
Sep39Poor
Oct34Moderate
Nov23Moderate
Dec19Moderate
Location & terrain

Where is Gemas?

Gemas sits at 2.6°N, 102.6°E, 34 m above sea level, in Malaysia. The nearest listed city is Batu Anam, 11 km away.

Topography around Gemas

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

Within 3 km, the terrain around Gemas has only modest variations in elevation — a maximum elevation change of 69 m around an average of 40 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 221 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,226 m.

The land around Gemas is covered by trees (77%) within 3 km, trees (91%) within 16 km, and trees (85%) within 80 km.

3 km
69 m
16 km
221 m
80 km
1,226 m
treesgrasslandartificial surfaceswater
December weather nearby: Batu Anam 11 km · Rompin 18 km · Taman Pelangi 19 km · Segamat 24 km · Bahau 34 km · Tangkak 36 km · Kampung Machap Baru 38 km · Kampung Selang 39 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 Gemas (2.5832°, 102.6117°, elevation 34 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).