Sibu Jaya weather in January

In January, Sibu Jaya sees average daytime highs of 30°C and overnight lows near 23°C, with 299 mm of rain across 27.5 wet days and about 11.9 hours of daylight. It is the 12th-warmest and 2nd-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 January, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of January to 11 h 54 min by month's end. Set against the rest of the year, January is Sibu Jaya's 11th-clearest and 2nd-windiest month. For the whole year in context, see Sibu Jaya's year-round climate.

Daytime high
30°
12th warmest
Overnight low
23°
1st coldest
Rainfall
299 mm
27.5 wet days
Daylight
11 h 54 min
6:45 AM – 6:38 PM
Cloud cover
92%
11th clearest
Wind
5 km/h
2nd windiest
Solar energy
3.98 kWh/m²
Travel score
2.8
out of 10

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 Sibu Jaya 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 Sibu Jaya

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.

Sibu Jaya weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°29927.511.92.8
Feb30° / 23°22923.411.92.9
Mar31° / 24°21825.9122.7
Apr31° / 24°22626.6122.5
May31° / 24°21125.612.12.7
Jun31° / 24°17021.112.13.1
Jul31° / 24°17220.712.13.2
Aug31° / 24°18521.512.13.0
Sep31° / 23°23424.4122.8
Oct31° / 23°26327.7122.6
Nov30° / 23°28828.511.92.5
Dec30° / 23°31728.711.92.6

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 2% of January, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1199
2298
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13298
14298
15298
16298
17298
18298
19298
20298
21397
22397
23397
24397
25397
26397
27397
28397
29397
30397
31397

Chance of precipitation in January

Any precipitation

Sibu Jaya gets around 299 mm of rain over 27.5 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 89% and peaks near 91% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
191
291
391
491
591
691
791
891
991
1091
1191
1291
1391
1491
1590
1690
1790
1889
1989
2088
2188
2288
2387
2487
2586
2686
2786
2885
2985
3085
3184

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 59% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
105446
205446
305545
405545
505644
605644
705644
805743
905743
1005842
1105842
1205842
1305941
1405941
1505941
1606040
1706040
1806040
1906040
2006139
2106139
2216039
2316039
2416039
2516039
2616039
2716039
2816138
2916138
3016237
3116336

Wind in January

Winds average 5 km/h in January.

Across January, 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 January

DaylightNight

Daylight runs from about 11 h 54 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 0 minutes over January. Sunrise moves from 6:39 AM to 6:48 AM, and sunset from 6:31 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:396:31
211.96:406:32
311.96:406:32
411.96:406:33
511.96:416:33
611.96:416:34
711.96:426:34
811.96:426:35
911.96:426:35
1011.96:436:35
1111.96:436:36
1211.96:446:36
1311.96:446:37
1411.96:446:37
1511.96:456:38
1611.96:456:38
1711.96:456:38
1811.96:466:39
1911.96:466:39
2011.96:466:39
2111.96:466:40
2211.96:476:40
2311.96:476:40
2411.96:476:41
2511.96:476:41
2611.96:486:41
2711.96:486:42
2811.96:486:42
2911.96:486:42
3011.96:486:42
3111.96:486:43

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 3.98 kWh/m².

For context, solar energy here swings from a low near 3.87 kWh/m² to a high of 4.96 kWh/m² in August across the year — January's 3.98 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
174.0Moderate
184.0Moderate
194.0Moderate
204.0Moderate
214.0Moderate
224.0Bright
234.0Bright
244.0Bright
254.0Bright
264.0Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
314.1Bright
Planning a trip in January

Is January a good time to visit Sibu Jaya?

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

2.8
Sightseeing
5th-best month of the year
3.9
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Sibu Jaya.

What to pack for Sibu Jaya in January

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

In January, Sibu Jaya sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Sibu Jaya 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 Sibu Jaya peaks around March 14 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 14UV 15Jul 14UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr15Extreme
May14Extreme
Jun12Extreme
Jul11Extreme
Aug13Extreme
Sep13Extreme
Oct14Extreme
Nov11Extreme
Dec11Extreme

Air quality in Sibu Jaya 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 Sibu Jaya is worst in September — around 26 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodSep 1325 µg/m³Dec 1411 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb12Moderate
Mar13Moderate
Apr14Moderate
May13Moderate
Jun14Moderate
Jul16Moderate
Aug22Moderate
Sep26Moderate
Oct17Moderate
Nov11Good
Dec11Good
Location & terrain

Where is Sibu Jaya?

Sibu Jaya sits at 2.2°N, 112.0°E, 68 m above sea level, in Malaysia. The nearest listed city is Sibu, 18 km away.

Topography around Sibu Jaya

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

Within 3 km, the terrain around Sibu Jaya has only modest variations in elevation — a maximum elevation change of 47 m around an average of 23 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 223 m; within 80 km, large variations in elevation — a maximum elevation change of 971 m.

The land around Sibu Jaya is covered by trees (75%) within 3 km, trees (90%) within 16 km, and trees (90%) within 80 km.

3 km
47 m
16 km
223 m
80 km
971 m
treesgrasslandartificial surfacesbare terrainwatermangroves
January weather nearby: Sibu 18 km · Kanowit 25 km · Julau 26 km · Maradong 43 km · Dalat 49 km · Selangau 50 km · Pakan 51 km · Sarikei 52 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 Sibu Jaya (2.2403°, 111.9714°, elevation 68 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. 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).