Tanjung Selor weather in January

In January, Tanjung Selor sees average daytime highs of 30°C and overnight lows near 23°C, with 279 mm of rain across 27.1 wet days and about 11.9 hours of daylight. It is the 12th-warmest and 5th-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 1% of the time in January, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of January to 11 h 54 min by month's end. Set against the rest of the year, January is Tanjung Selor's 11th-clearest and 3rd-windiest month. For the whole year in context, see Tanjung Selor's year-round climate.

Daytime high
30°
12th warmest
Overnight low
23°
2nd coldest
Rainfall
279 mm
27.1 wet days
Daylight
11 h 54 min
6:24 AM – 6:15 PM
Cloud cover
89%
11th clearest
Wind
4 km/h
3rd windiest
Solar energy
4.33 kWh/m²
Travel score
2.9
out of 10

Tanjung Selor is capital of Bulungan Regency and North Kalimantan Province, Indonesia.

Density
53/km²
people per km²
Founded
1790

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 30°C through the month.

A typical January day in Tanjung Selor reaches about 30°C in the afternoon and slips back to 23°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, January runs on par with December and on par with February.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023
313023

How January really feels in Tanjung Selor

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.

Tanjung Selor weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°27927.111.92.9
Feb30° / 23°20924.311.92.8
Mar31° / 23°25428122.6
Apr31° / 23°25627.412.12.5
May31° / 23°29029.512.12.4
Jun31° / 23°25126.512.22.6
Jul31° / 23°22026.712.12.7
Aug31° / 23°22026.412.12.6
Sep32° / 23°25327.2122.4
Oct31° / 23°29428.811.92.4
Nov31° / 23°31329.211.92.4
Dec31° / 23°30929.211.82.5

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 6% of January, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1694
2694
3694
4694
5694
6793
7793
8694
9694
10694
11694
12694
13694
14694
15694
16793
17793
18793
19793
20892
21892
22892
23892
24892
25892
26892
27892
28892
29892
30892
31892

Chance of precipitation in January

Any precipitation

Tanjung Selor gets around 279 mm of rain over 27.1 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 88% and peaks near 89% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
189
289
389
488
588
688
788
888
988
1088
1188
1288
1388
1488
1588
1688
1788
1888
1987
2087
2187
2287
2387
2487
2587
2687
2787
2887
2987
3087
3187

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 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
116732
216930
317128
417227
517425
617524
717623
817722
917821
1017920
1118019
1218118
1318118
1418217
1518217
1618316
1718316
1818415
1918415
2018514
2118514
2218613
2318613
2418712
2528612
2628711
2728711
2818811
2918811
3018811
3118811

Wind in January

Winds average 4 km/h in January.

Across January, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 11 h 48 min at the start of January to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over January. Sunrise moves from 6:19 AM to 6:28 AM, and sunset from 6:09 PM to 6:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:196:09
211.86:196:09
311.86:196:10
411.86:206:10
511.86:206:11
611.86:216:11
711.86:216:12
811.86:216:12
911.86:226:12
1011.86:226:13
1111.86:236:13
1211.86:236:14
1311.86:236:14
1411.86:246:15
1511.96:246:15
1611.96:246:15
1711.96:256:16
1811.96:256:16
1911.96:256:17
2011.96:256:17
2111.96:266:17
2211.96:266:18
2311.96:266:18
2411.96:266:18
2511.96:276:19
2611.96:276:19
2711.96:276:19
2811.96:276:19
2911.96:276:20
3011.96:276:20
3111.96:286:20

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.33 kWh/m².

For context, solar energy here swings from a low near 4.3 kWh/m² to a high of 5.4 kWh/m² in September across the year — January's 4.33 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
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.4Bright
274.4Bright
284.4Bright
294.4Bright
304.4Bright
314.5Bright
Planning a trip in January

Hazard calendar for Tanjung Selor

In seasonPeak

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

Tanjung Selor 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 January a good time to visit Tanjung Selor?

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

2.9
Sightseeing
1st-best month of the year
4.0
Beach & pool
4th-best month of the year

January is a weaker month for outdoor sightseeing in Tanjung Selor.

What to pack for Tanjung Selor in January

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

In January, Tanjung Selor sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 27 days see rain.

light clothesrain gear

Sea temperature near Tanjung Selor 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 43 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
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Tanjung Selor in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tanjung Selor peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 12 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jul 14UV 12
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Tanjung Selor 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 Tanjung Selor is worst in September — around 24 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (January, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1323 µg/m³Jan 17 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar9Good
Apr11Good
May9Good
Jun10Good
Jul12Good
Aug19Moderate
Sep24Moderate
Oct14Moderate
Nov8Good
Dec7Good
Location & terrain

Where is Tanjung Selor?

Tanjung Selor sits at 2.8°N, 117.4°E, 9 m above sea level, in Indonesia. The nearest listed city is Tarakan, 59 km away.

Bontang

Topography around Tanjung Selor

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

Within 3 km, the terrain around Tanjung Selor has only modest variations in elevation — a maximum elevation change of 142 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 356 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,364 m.

The land around Tanjung Selor is covered by trees (51%) within 3 km, trees (85%) within 16 km, and trees (66%) and water (26%) within 80 km.

3 km
142 m
16 km
356 m
80 km
1,364 m
treesshrubsgrasslandcroplandartificial surfaceswatermangroves
January weather nearby: Tarakan 59 km · Malinau 117 km · Nunukan 148 km · Tawau 167 km · Semporna 229 km · Lahad Datu 265 km · Bandar Nabawan 266 km · Bontang 301 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 Tanjung Selor (2.8375°, 117.3653°, 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).