Yan Besar weather in December

In December, Yan Besar sees average daytime highs of 29°C and overnight lows near 25°C, with 144 mm of rain across 17.5 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 10% of the time in December, and the air most often feels oppressive.

Daylight stretches from about 11 h 42 min at the start of December to 11 h 42 min by month's end. Set against the rest of the year, December is Yan Besar's 5th-clearest and 1st-windiest month. For the whole year in context, see Yan Besar's year-round climate.

Daytime high
29°
9th warmest
Overnight low
25°
2nd coldest
Rainfall
144 mm
17.5 wet days
Daylight
11 h 42 min
7:25 AM – 7:05 PM
Cloud cover
80%
5th clearest
Wind
12 km/h
1st windiest
Solar energy
4.63 kWh/m²
Travel score
4.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical December day in Yan Besar reaches about 29°C in the afternoon and slips back to 25°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°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)
12926
22926
32926
42926
52926
62926
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
272925
282925
292925
302925
312925

How December really feels in Yan Besar

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.

Yan Besar weather by month

How December compares with the rest of the year at a glance. December is the 9th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 25°7312.311.74.7
Feb30° / 26°7612.611.84.4
Mar30° / 26°15320.9123.7
Apr30° / 26°20727.112.12.9
May30° / 27°24026.512.33.0
Jun30° / 27°18021.612.33.4
Jul30° / 26°18322.112.33.6
Aug29° / 26°23023.812.23.5
Sep29° / 26°25625.7123.3
Oct29° / 26°33729.111.93.0
Nov29° / 26°27126.111.73.2
Dec29° / 25°14417.511.74.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 10% of December, with mostly cloudy or overcast conditions the remaining 81%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11684
21684
31783
41783
51783
61783
71783
81783
91783
101882
111882
121882
131882
141882
151882
161882
171981
181981
191981
201981
211981
222080
232080
242080
252179
262278
272377
282476
292575
302575
312674

Chance of precipitation in December

Any precipitation

Yan Besar gets around 144 mm of rain over 17.5 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 57% and peaks near 75% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
175
274
373
472
570
669
768
867
966
1065
1164
1262
1361
1460
1558
1657
1756
1854
1953
2051
2150
2249
2348
2447
2546
2645
2744
2843
2943
3043
3142

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 (%)
117128
217227
317326
417425
517524
617623
717722
817821
917920
1018019
1118118
1218217
1318316
1428216
1528315
1628414
1728513
1838413
1938512
2038512
2148511
2248610
2358510
245869
256859
266868
277858
287858
298848
308848
319838

Wind in December

Winds average 12 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 10 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1112calm
1212calm
1312calm
1412calm
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 11 h 42 min at the start of December to 11 h 42 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 7:18 AM to 7:32 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)
111.77:186:59
211.77:186:59
311.77:197:00
411.77:197:00
511.77:197:00
611.77:207:01
711.77:207:01
811.77:217:01
911.77:217:02
1011.77:227:02
1111.77:227:03
1211.77:237:03
1311.77:237:03
1411.77:247:04
1511.77:247:04
1611.77:257:05
1711.77:257:05
1811.77:267:06
1911.77:267:06
2011.77:277:06
2111.77:277:07
2211.77:287:07
2311.77:287:08
2411.77:297:08
2511.77:297:09
2611.77:297:09
2711.77:307:10
2811.77:307:10
2911.77:317:11
3011.77:317:11
3111.77:327:12

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.63 kWh/m².

For context, solar energy here swings from a low near 4.52 kWh/m² to a high of 5.98 kWh/m² in March across the year — December's 4.63 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
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.6Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in December

Hazard calendar for Yan Besar

In seasonPeak

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

Yan Besar 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 Yan Besar?

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

4.2
Sightseeing
3rd-best month of the year
5.5
Beach & pool
3rd-best month of the year

December is a reasonable time to visit Yan Besar for sightseeing.

What to pack for Yan Besar in December

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

In December, Yan Besar sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Yan Besar 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 offshore is warmest in June at about 31°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
May31Tropical
Jun31Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Yan Besar 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 Yan Besar peaks around February 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near May 20 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 14May 20UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar13Extreme
Apr13Extreme
May10Very high
Jun11Extreme
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Yan Besar 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 Yan Besar is worst in July — around 29 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1129 µg/m³Feb 1120 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb20Moderate
Mar24Moderate
Apr27Moderate
May26Moderate
Jun29Moderate
Jul29Moderate
Aug27Moderate
Sep28Moderate
Oct27Moderate
Nov23Moderate
Dec20Moderate
Location & terrain

Where is Yan Besar?

Yan Besar sits at 5.8°N, 100.4°E, 9 m above sea level, in Malaysia. The nearest listed city is Gurun, 11 km away.

Topography around Yan Besar

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

Within 3 km, the terrain around Yan Besar has only modest variations in elevation — a maximum elevation change of 241 m around an average of 16 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,186 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,840 m.

The land around Yan Besar is covered by water (38%) and trees (36%) within 3 km, water (45%), trees (28%) and cropland (21%) within 16 km, and trees (46%) and water (40%) within 80 km.

3 km
241 m
16 km
1,186 m
80 km
1,840 m
treesgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Gurun 11 km · Bedong 17 km · Sungai Lalang 19 km · Sungai Petani 21 km · Kota Kuala Muda 23 km · Pendang 25 km · Tokai 26 km · Kepala Batas 32 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 Yan Besar (5.7989°, 100.3726°, elevation 9 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).