Betong weather in December

In December, Betong sees average daytime highs of 30°C and overnight lows near 24°C, with 329 mm of rain across 28.7 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 1st-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 0% 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 Betong's 12th-clearest and 5th-windiest month. For the whole year in context, see Betong's year-round climate.

Daytime high
30°
10th warmest
Overnight low
24°
7th coldest
Rainfall
329 mm
28.7 wet days
Daylight
11 h 54 min
6:33 AM – 6:28 PM
Cloud cover
93%
12th clearest
Wind
5 km/h
5th windiest
Solar energy
4.23 kWh/m²
Travel score
2.6
out of 10

Betong 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 Betong 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)
13124
23124
33124
43124
53124
63024
73024
83024
93024
103024
113024
123024
133024
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How December really feels in Betong

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.

Betong 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
Jan30° / 23°32827.511.92.8
Feb30° / 23°26523122.9
Mar31° / 24°25626.4122.7
Apr31° / 24°24626.9122.5
May32° / 24°22025.412.12.6
Jun31° / 24°17220.412.13.1
Jul31° / 24°15818.412.13.3
Aug31° / 24°17319.9123.1
Sep31° / 24°23424.1122.8
Oct31° / 24°27228.1122.5
Nov31° / 24°29528.811.92.4
Dec30° / 24°32928.711.92.6

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in December, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 1% of December, with mostly cloudy or overcast conditions the remaining 99%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6298
7298
8298
9298
10298
11298
12298
13298
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28199
29199
30199
31199

Chance of precipitation in December

Any precipitation

Betong gets around 329 mm of rain over 28.7 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 93% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
193
293
393
492
592
692
792
892
992
1092
1192
1292
1392
1492
1592
1693
1793
1893
1993
2094
2194
2294
2394
2494
2594
2693
2793
2893
2992
3092
3192

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
Oppressive (%)Miserable (%)
16139
26238
36238
46238
56238
66238
76238
86238
96238
106238
116139
126139
136139
146040
156040
166040
176040
186040
196040
206040
216040
226139
236139
246238
256337
266337
276436
286535
296535
306634
316733

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 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 6:26 AM to 6:39 AM, and sunset from 6:21 PM to 6:35 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:266:21
211.96:266:22
311.96:276:22
411.96:276:23
511.96:286:23
611.96:286:23
711.96:286:24
811.96:296:24
911.96:296:25
1011.96:306:25
1111.96:306:25
1211.96:316:26
1311.96:316:26
1411.96:326:27
1511.96:326:27
1611.96:336:28
1711.96:336:28
1811.96:336:29
1911.96:346:29
2011.96:346:30
2111.96:356:30
2211.96:356:30
2311.96:366:31
2411.96:366:31
2511.96:376:32
2611.96:376:32
2711.96:386:33
2811.96:386:33
2911.96:396:34
3011.96:396:34
3111.96:396:35

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.23 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 5.17 kWh/m² in August across the year — December's 4.23 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.2Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
314.2Bright
Planning a trip in December

Is December a good time to visit Betong?

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

2.6
Sightseeing
8th-best month of the year
3.7
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Betong.

What to pack for Betong in December

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

In December, Betong sees daytime highs around 30°C and nights near 24°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

Sea temperature near Betong 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 68 km away) is warmest in May at about 30°C and coldest in February 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
Nov30Tropical
Dec29Tropical

UV index in Betong 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 Betong peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 11UV 15Jul 14UV 11
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Betong 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 Betong is worst in September — around 27 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1326 µg/m³Jan 129 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar11Good
Apr11Good
May11Good
Jun11Good
Jul16Moderate
Aug23Moderate
Sep27Moderate
Oct16Moderate
Nov10Good
Dec9Good
Location & terrain

Where is Betong?

Betong sits at 1.4°N, 111.5°E, 41 m above sea level, in Malaysia. The nearest listed city is Sri Aman, 18 km away.

Topography around Betong

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

Within 3 km, the terrain around Betong has only modest variations in elevation — a maximum elevation change of 72 m around an average of 17 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 553 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,241 m.

The land around Betong is covered by trees (84%) within 3 km, trees (92%) within 16 km, and trees (91%) within 80 km.

3 km
72 m
16 km
553 m
80 km
1,241 m
treesgrasslandartificial surfaceswatermangroves
December weather nearby: Sri Aman 18 km · Engkilili 34 km · Saratok 42 km · Pakan 57 km · Maradong 77 km · Sarikei 80 km · Julau 82 km · Simunjan 85 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 Betong (1.4°, 111.5167°, elevation 41 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. 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).