Sungai Raya weather in January

In January, Sungai Raya sees average daytime highs of 28°C and overnight lows near 24°C, with 287 mm of rain across 25.5 wet days and about 12 hours of daylight. It is the 11th-warmest and 4th-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 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 Sungai Raya's 10th-clearest and 1st-windiest month. For the whole year in context, see Sungai Raya's year-round climate.

Daytime high
28°
11th warmest
Overnight low
24°
2nd coldest
Rainfall
287 mm
25.5 wet days
Daylight
12 hours
5:55 AM – 5:53 PM
Cloud cover
91%
10th clearest
Wind
11 km/h
1st windiest
Solar energy
4.62 kWh/m²
Travel score
3.5
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical January day in Sungai Raya 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, January runs on par with December and on par with February.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12824
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192924
202924
212924
222924
232924
242924
252924
262924
272924
282924
292924
302924
312924

How January really feels in Sungai Raya

Once humidity and wind are folded in, January averages 16 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
16
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.

Sungai Raya weather by month

How January compares with the rest of the year at a glance. January is the 11th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 24°28725.5123.5
Feb29° / 24°18419.9123.8
Mar29° / 24°19822.1123.7
Apr30° / 25°22425.1123.2
May30° / 25°23024.7123.3
Jun30° / 25°19219.9123.7
Jul30° / 25°17318124.1
Aug30° / 25°16418.4123.9
Sep29° / 25°21021.4123.6
Oct29° / 24°32027.1123.2
Nov29° / 24°40529122.9
Dec28° / 24°39528.4123.1

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 3% 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
18496
19496
20496
21496
22496
23496
24496
25496
26496
27595
28595
29694
30694
31694

Chance of precipitation in January

Any precipitation

Sungai Raya gets around 287 mm of rain over 25.5 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 82% and peaks near 88% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
188
288
388
487
587
687
786
886
986
1085
1185
1285
1384
1484
1583
1683
1782
1882
1981
2080
2180
2279
2379
2478
2578
2678
2777
2877
2976
3076
3175

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 (%)
107624
207624
307723
407723
507822
607822
707921
807921
908020
1008020
1108119
1208119
1308119
1408119
1508218
1608218
1708218
1808317
1908317
2008317
2108317
2208317
2318316
2418316
2518316
2618316
2718316
2818415
2918415
3028315
3128315

Wind in January

Winds average 11 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

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 5:49 AM to 5:59 AM, and sunset from 5:46 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:495:46
212.05:495:47
312.05:505:47
412.05:505:48
512.05:515:48
612.05:515:49
712.05:515:49
812.05:525:49
912.05:525:50
1012.05:535:50
1112.05:535:51
1212.05:535:51
1312.05:545:51
1412.05:545:52
1512.05:545:52
1612.05:555:53
1712.05:555:53
1812.05:555:53
1912.05:565:54
2012.05:565:54
2112.05:565:54
2212.05:575:55
2312.05:575:55
2412.05:575:55
2512.05:575:55
2612.05:585:56
2712.05:585:56
2812.05:585:56
2912.05:585:56
3012.05:585:57
3112.05:595:57

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 4.62 kWh/m².

For context, solar energy here swings from a low near 4.26 kWh/m² to a high of 5.39 kWh/m² in March across the year — January's 4.62 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.6Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
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 Sungai Raya?

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

3.5
Sightseeing
7th-best month of the year
4.2
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Sungai Raya.

What to pack for Sungai Raya in January

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

In January, Sungai Raya sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Sungai Raya in January

The nearest coast averages about 28°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore 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
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov30Tropical
Dec29Tropical

UV index in Sungai Raya 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 Sungai Raya 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 Sungai Raya 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 Sungai Raya 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 Sungai Raya?

Sungai Raya sits at 0.7°N, 108.9°E, 9 m above sea level, in Indonesia. The nearest listed city is Singkawang, 25 km away.

Topography around Sungai Raya

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

Within 3 km, the terrain around Sungai Raya has only modest variations in elevation — a maximum elevation change of 186 m around an average of 6 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 323 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,381 m.

The land around Sungai Raya is covered by trees (47%) and water (33%) within 3 km, water (48%) and trees (43%) within 16 km, and trees (49%) and water (46%) within 80 km.

3 km
186 m
16 km
323 m
80 km
1,381 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwatermangroves
January weather nearby: Singkawang 25 km · Pemangkat 52 km · Bengkayang 61 km · Kota Sambas 86 km · Pontianak 94 km · Lundu 151 km · Bau 160 km · Tebedu 167 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 Sungai Raya (0.7°, 108.9°, 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. 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).