Singkawang weather in December

In December, Singkawang sees average daytime highs of 28°C and overnight lows near 24°C, with 399 mm of rain across 28.2 wet days and about 11.9 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°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 12 hours at the start of December to 11 h 54 min by month's end. Set against the rest of the year, December is Singkawang's 11th-clearest and 5th-windiest month. For the whole year in context, see Singkawang's year-round climate.

Daytime high
28°
11th warmest
Overnight low
24°
3rd coldest
Rainfall
399 mm
28.2 wet days
Daylight
11 h 54 min
5:42 AM – 5:39 PM
Cloud cover
92%
11th clearest
Wind
9 km/h
5th windiest
Solar energy
4.14 kWh/m²
Travel score
3.1
out of 10

Singkawang is city in West Kalimantan Province, Indonesia.

Density
504/km²
people per km²
Founded
1771

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 28°C through the month.

A typical December day in Singkawang reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 30°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)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152924
162924
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824
312824

How December really feels in Singkawang

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.

Singkawang weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°28325.5123.5
Feb29° / 24°17719.7123.8
Mar29° / 25°18722.1123.6
Apr30° / 25°21225123.2
May30° / 25°22124.7123.2
Jun30° / 25°19420.612.13.6
Jul30° / 25°17819.1123.9
Aug30° / 25°16319.1123.8
Sep29° / 25°20321.8123.5
Oct29° / 25°30327123.2
Nov29° / 25°39528.9122.9
Dec28° / 24°39928.211.93.1

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 3% of December, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4496
5496
6496
7496
8496
9496
10496
11496
12496
13496
14397
15397
16397
17397
18397
19298
20298
21298
22397
23397
24397
25397
26397
27397
28397
29397
30397
31397

Chance of precipitation in December

Any precipitation

Singkawang gets around 399 mm of rain over 28.2 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 91% and peaks near 94% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
194
294
394
493
593
692
792
891
991
1091
1191
1291
1391
1491
1591
1691
1791
1891
1991
2091
2191
2291
2391
2491
2591
2691
2790
2890
2990
3089
3189

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 61% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
15248
25347
35446
45545
55545
65644
75743
85743
95842
105941
115941
126040
136040
146040
156139
166139
176238
186238
196238
206337
216337
226436
236535
246535
256535
266634
276634
286634
296733
306733
316832

Wind in December

Winds average 9 km/h in December.

Across December, daily wind ranges from about 8 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 12 hours at the start of December to 11 h 54 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 5:35 AM to 5:49 AM, and sunset from 5:32 PM to 5:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:355:32
212.05:365:33
312.05:365:33
412.05:365:33
511.95:375:34
611.95:375:34
711.95:385:35
811.95:385:35
911.95:395:36
1011.95:395:36
1111.95:395:36
1211.95:405:37
1311.95:405:37
1411.95:415:38
1511.95:415:38
1611.95:425:39
1711.95:425:39
1811.95:435:40
1911.95:435:40
2011.95:445:41
2111.95:445:41
2211.95:455:41
2311.95:455:42
2411.95:465:42
2511.95:465:43
2611.95:465:43
2711.95:475:44
2811.95:475:44
2911.95:485:45
3011.95:485:45
3111.95:495:46

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 4.14 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 5.28 kWh/m² in March across the year — December's 4.14 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.1Bright
44.1Bright
54.1Bright
64.1Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.2Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
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 Singkawang?

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

3.1
Sightseeing
11th-best month of the year
3.8
Beach & pool
11th-best month of the year

December is a weaker month for outdoor sightseeing in Singkawang.

What to pack for Singkawang in December

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

In December, Singkawang sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Singkawang 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 13 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
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Singkawang 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 Singkawang peaks around February 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 18UV 16Jul 12UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov12Extreme
Dec11Extreme

Air quality in Singkawang 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 Singkawang is worst in September — around 42 µg/m³ PM2.5 (poor), about 4.2× the cleanest month (January, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1440 µg/m³Jan 1110 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr14Moderate
May13Moderate
Jun13Moderate
Jul15Moderate
Aug31Moderate
Sep42Poor
Oct23Moderate
Nov12Moderate
Dec10Good
Location & terrain

Where is Singkawang?

Singkawang sits at 0.9°N, 109.0°E, 2 m above sea level, in Indonesia. The nearest listed city is Sungai Raya, 25 km away.

Topography around Singkawang

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

Within 3 km, the terrain around Singkawang has significant variations in elevation — a maximum elevation change of 301 m around an average of 9 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 928 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,381 m.

The land around Singkawang is covered by trees (37%) and artificial surfaces (36%) within 3 km, trees (55%) and water (30%) within 16 km, and trees (58%) and water (37%) within 80 km.

3 km
301 m
16 km
928 m
80 km
1,381 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
December weather nearby: Sungai Raya 25 km · Pemangkat 29 km · Bengkayang 51 km · Kota Sambas 61 km · Pontianak 111 km · Lundu 129 km · Bau 141 km · Tebedu 154 km

Indonesia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,060
2025
Happiness
5.6 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.3
per 100k, 2022
Road deaths
11.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 471
Religion
Muslim 87%Protestant 8%Roman Catholic 3%Hindu 2%

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 Singkawang (0.9093°, 108.9846°, elevation 2 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).