Pontianak weather in January

In January, Pontianak sees average daytime highs of 29°C and overnight lows near 24°C, with 257 mm of rain across 24.8 wet days and about 12 hours of daylight. It is the 10th-warmest and 4th-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 1% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of January to 12 hours by month's end. Set against the rest of the year, January is Pontianak's 10th-clearest and 1st-windiest month. For the whole year in context, see Pontianak's year-round climate.

Daytime high
29°
10th warmest
Overnight low
24°
2nd coldest
Rainfall
257 mm
24.8 wet days
Daylight
12 hours
5:52 AM – 5:52 PM
Cloud cover
90%
10th clearest
Wind
8 km/h
1st windiest
Solar energy
4.65 kWh/m²
Travel score
3.4
out of 10

Pontianak is city in West Kalimantan Province, Indonesia.

Density
6,364/km²
people per km²
Founded
1771

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

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

A typical January day in Pontianak reaches about 29°C in the afternoon and slips back to 24°C overnight — a 5°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, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12924
22924
32924
42924
52924
62924
72924
82924
92924
102924
112924
122924
132924
142924
152924
162924
172924
182924
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
312924

How January really feels in Pontianak

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

Pontianak weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 24°25724.8123.4
Feb29° / 24°17119.6123.6
Mar30° / 25°19923.1123.3
Apr30° / 25°25627.4122.8
May30° / 25°22524.9123.1
Jun30° / 25°17019.8123.6
Jul30° / 25°14917.9123.9
Aug31° / 25°14217.1123.8
Sep30° / 25°19120.7123.4
Oct30° / 24°30927.6123.0
Nov29° / 24°38629122.8
Dec29° / 24°36428.2123.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 4% of January, with mostly cloudy or overcast conditions the remaining 95%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1496
2496
3496
4595
5595
6595
7595
8595
9595
10595
11595
12595
13595
14595
15595
16595
17595
18595
19496
20496
21496
22496
23496
24496
25595
26595
27595
28595
29595
30694
31694

Chance of precipitation in January

Any precipitation

Pontianak gets around 257 mm of rain over 24.8 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 80% 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
287
386
486
586
685
785
885
984
1084
1183
1282
1382
1481
1580
1680
1779
1878
1978
2077
2177
2276
2376
2475
2575
2675
2775
2875
2974
3074
3173

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the oppressive band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
105644
205743
305842
405842
505941
606040
706040
806139
906238
1006337
1106337
1206436
1306436
1406535
1506535
1606535
1706535
1806535
1906535
2006535
2106535
2206535
2306535
2406634
2506634
2606733
2706733
2816732
2916732
3016831
3116831

Wind in January

Winds average 8 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 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
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 12 hours at the start of January to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over January. Sunrise moves from 5:46 AM to 5:56 AM, and sunset from 5:46 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:465:46
212.05:465:46
312.05:475:47
412.05:475:47
512.05:485:48
612.05:485:48
712.05:485:49
812.05:495:49
912.05:495:49
1012.05:505:50
1112.05:505:50
1212.05:505:51
1312.05:515:51
1412.05:515:51
1512.05:525:52
1612.05:525:52
1712.05:525:52
1812.05:535:53
1912.05:535:53
2012.05:535:53
2112.05:545:54
2212.05:545:54
2312.05:545:54
2412.05:545:55
2512.05:555:55
2612.05:555:55
2712.05:555:55
2812.05:555:55
2912.05:565:56
3012.05:565:56
3112.05:565:56

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.65 kWh/m².

For context, solar energy here swings from a low near 4.2 kWh/m² to a high of 5.37 kWh/m² in August across the year — January's 4.65 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.6Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.8Bright
Planning a trip in January

Is January a good time to visit Pontianak?

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

3.4
Sightseeing
5th-best month of the year
4.4
Beach & pool
7th-best month of the year

January is a weaker month for outdoor sightseeing in Pontianak.

What to pack for Pontianak in January

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

In January, Pontianak sees daytime highs around 29°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

Sea temperature near Pontianak in January

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

The sea at the nearest coast (about 25 km away) is warmest in May at about 30°C and coldest in February 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
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug29Tropical
Sep29Tropical
Oct30Tropical
Nov30Tropical
Dec29Tropical

UV index in Pontianak in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Pontianak peaks around February 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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 15Jul 13UV 11
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun11Extreme
Jul10Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Air quality in Pontianak in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Pontianak is worst in September — around 72 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (December, 14 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateSep 1369 µg/m³Dec 2114 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb20Moderate
Mar22Moderate
Apr19Moderate
May17Moderate
Jun16Moderate
Jul26Moderate
Aug54Poor
Sep72Unhealthy
Oct30Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Pontianak?

Pontianak sits at 0.0°S, 109.3°E, 2 m above sea level, in Indonesia. The nearest listed city is Sungai Raya, 94 km away.

Topography around Pontianak

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

Within 3 km, the terrain around Pontianak has only modest variations in elevation — a maximum elevation change of 17 m around an average of 5 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 27 m; within 80 km, large variations in elevation — a maximum elevation change of 827 m.

The land around Pontianak is covered by artificial surfaces (78%) within 3 km, trees (59%) and grassland (25%) within 16 km, and trees (59%) and water (31%) within 80 km.

3 km
17 m
16 km
27 m
80 km
827 m
treesgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Sungai Raya 94 km · Bengkayang 97 km · Singkawang 111 km · Pemangkat 139 km · Kota Sambas 155 km · Tebedu 165 km · Bau 185 km · Serian 192 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 Pontianak (-0.0319°, 109.325°, 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).