Ijok weather in December

In December, Ijok sees average daytime highs of 30°C and overnight lows near 24°C, with 300 mm of rain across 25.8 wet days and about 11.8 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 2% of the time in December, and the air most often feels oppressive.

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

Daytime high
30°
12th warmest
Overnight low
24°
3rd coldest
Rainfall
300 mm
25.8 wet days
Daylight
11 h 48 min
7:16 AM – 7:05 PM
Cloud cover
89%
11th clearest
Wind
5 km/h
11th windiest
Solar energy
4.54 kWh/m²
Travel score
2.9
out of 10

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 Ijok 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 29°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)
13124
23124
33124
43124
53124
63124
73124
83024
93024
103024
113024
123024
133024
143024
153024
163024
173024
183024
193024
203024
213024
223024
233024
243024
253024
263024
273024
283023
293023
303123
313123

How December really feels in Ijok

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.

Ijok 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° / 23°22321.311.83.2
Feb32° / 24°16417.811.93.2
Mar32° / 24°22223.7122.7
Apr32° / 24°25126.812.12.4
May32° / 24°18722.912.12.7
Jun32° / 24°11217.612.23.1
Jul32° / 24°11216.912.23.2
Aug32° / 24°12818.212.13.1
Sep32° / 24°16520.3122.9
Oct31° / 24°2402411.92.8
Nov31° / 24°37027.311.82.6
Dec30° / 24°30025.811.82.9

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 6% of December, with mostly cloudy or overcast conditions the remaining 91%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6892
7892
8892
9892
10892
11892
12892
13892
14892
15892
16892
17793
18793
19793
20793
21793
22991
23991
24991
25991
26991
27991
281189
291189
301189
311288

Chance of precipitation in December

Any precipitation

Ijok gets around 300 mm of rain over 25.8 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 83% and peaks near 86% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
186
286
385
485
585
685
784
884
984
1084
1184
1284
1384
1483
1583
1683
1783
1883
1983
2083
2182
2282
2382
2482
2581
2681
2780
2879
2979
3078
3177

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 62% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
115247
215346
315445
415544
515544
615643
715643
815742
905842
1005842
1105842
1205941
1305941
1406040
1506040
1606139
1706139
1806238
1906337
2006337
2106436
2206535
2306634
2406733
2506832
2606832
2706931
2816930
2916930
3017029
3117128

Wind in December

Winds average 5 km/h in December.

Across December, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 48 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 grow by about 0 minutes over December. Sunrise moves from 7:10 AM to 7:23 AM, and sunset from 6:59 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:106:59
211.87:106:59
311.87:107:00
411.87:117:00
511.87:117:00
611.87:127:01
711.87:127:01
811.87:137:01
911.87:137:02
1011.87:137:02
1111.87:147:03
1211.87:147:03
1311.87:157:04
1411.87:157:04
1511.87:167:04
1611.87:167:05
1711.87:177:05
1811.87:177:06
1911.87:187:06
2011.87:187:07
2111.87:197:07
2211.87:197:08
2311.87:207:08
2411.87:207:09
2511.87:217:09
2611.87:217:10
2711.87:217:10
2811.87:227:10
2911.87:227:11
3011.87:237:11
3111.87:237:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.54 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.54 kWh/m² to a high of 5.94 kWh/m² in March across the year — December's 4.54 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.7Bright
284.7Bright
294.7Bright
304.7Bright
314.8Bright
Planning a trip in December

Hazard calendar for Ijok

In seasonPeak

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

Ijok 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 Ijok?

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

2.9
Sightseeing
6th-best month of the year
4.1
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Ijok.

What to pack for Ijok in December

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

In December, Ijok sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Ijok 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 21 km away) is warmest in May at about 30°C and coldest in January near 29°C.

The water stays above 20°C all year — warm enough for a swim any month.

28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Ijok in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ijok peaks around February 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 17UV 14Nov 22UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul10Very high
Aug12Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec10Extreme

Air quality in Ijok 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 Ijok is worst in September — around 38 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (November, 23 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateSep 1538 µg/m³Nov 2224 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb34Moderate
Mar33Moderate
Apr31Moderate
May30Moderate
Jun29Moderate
Jul34Moderate
Aug34Moderate
Sep38Poor
Oct34Moderate
Nov23Moderate
Dec25Moderate
Location & terrain

Where is Ijok?

Ijok sits at 3.3°N, 101.4°E, 10 m above sea level, in Malaysia. The nearest listed city is Batu Arang, 7.0 km away.

Topography around Ijok

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

Within 3 km, the terrain around Ijok has only modest variations in elevation — a maximum elevation change of 24 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 211 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,972 m.

The land around Ijok is covered by trees (83%) within 3 km, trees (76%) within 16 km, and trees (59%) and water (30%) within 80 km.

3 km
24 m
16 km
211 m
80 km
1,972 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
December weather nearby: Batu Arang 7.0 km · Batang Berjuntai 8.0 km · Bandar Tasik Puteri 9.0 km · Bandar Puncak Alam 9.0 km · Ladang Seri Kundang 14 km · Kampong Dungun 14 km · Bandar Country Homes 15 km · Bandar Saujana Utama 15 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 Ijok (3.3167°, 101.4°, 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).