Sitiawan weather in January

In January, Sitiawan sees average daytime highs of 29°C and overnight lows near 25°C, with 210 mm of rain across 25.7 wet days and about 11.8 hours of daylight. It is the 10th-warmest and 6th-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 10% 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 48 min by month's end. Set against the rest of the year, January is Sitiawan's 3rd-clearest and 12th-windiest month. For the whole year in context, see Sitiawan's year-round climate.

Daytime high
29°
10th warmest
Overnight low
25°
1st coldest
Rainfall
210 mm
25.7 wet days
Daylight
11 h 48 min
7:33 AM – 7:20 PM
Cloud cover
77%
3rd clearest
Wind
5 km/h
12th windiest
Solar energy
5.15 kWh/m²
Travel score
3.3
out of 10

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 Sitiawan reaches about 29°C in the afternoon and slips back to 25°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)
12925
22925
32925
42925
52925
62925
72925
82925
92925
102925
112925
122925
132925
142925
152925
162925
172925
182925
192925
202925
212925
222925
232925
242925
252925
262925
273025
283025
293025
303025
313025

How January really feels in Sitiawan

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.

Sitiawan weather by month

How January compares with the rest of the year at a glance. January is the 10th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 25°21025.711.83.3
Feb30° / 25°15422.111.93.3
Mar30° / 25°21327.2122.9
Apr30° / 26°23528.412.12.6
May31° / 26°2042612.22.8
Jun31° / 26°13419.912.23.4
Jul30° / 25°13620.812.23.5
Aug30° / 25°16322.412.13.3
Sep30° / 25°20924.1123.1
Oct30° / 25°28227.611.92.9
Nov29° / 25°35628.811.82.8
Dec29° / 25°29827.811.83.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11882
21882
31981
42080
52179
62278
72278
82377
92476
102476
112476
122476
132377
142377
152377
162377
172278
182278
192278
202278
212278
222278
232377
242377
252377
262377
272476
282476
292476
302575
312575

Chance of precipitation in January

Any precipitation

Sitiawan gets around 210 mm of rain over 25.7 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 84% and peaks near 86% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
186
286
385
485
585
685
785
885
985
1085
1186
1286
1386
1486
1586
1686
1786
1885
1985
2085
2184
2283
2382
2481
2581
2680
2779
2878
2978
3077
3177

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
17030
27030
37030
47129
57129
67129
77129
87030
97030
107030
117030
126931
136931
146931
156931
166832
176832
186832
196832
206832
216733
226733
236733
246733
256733
266733
276733
286733
296733
306733
316733

Wind in January

Winds average 5 km/h in January, the calmest month.

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 48 min at the start of January to 11 h 48 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 7:28 AM to 7:36 AM, and sunset from 7:13 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:287:13
211.87:287:14
311.87:287:14
411.87:297:15
511.87:297:15
611.87:307:16
711.87:307:16
811.87:307:16
911.87:317:17
1011.87:317:17
1111.87:317:18
1211.87:327:18
1311.87:327:19
1411.87:327:19
1511.87:337:19
1611.87:337:20
1711.87:337:20
1811.87:347:21
1911.87:347:21
2011.87:347:21
2111.87:347:22
2211.87:357:22
2311.87:357:23
2411.87:357:23
2511.87:357:23
2611.87:357:24
2711.87:367:24
2811.87:367:24
2911.87:367:24
3011.87:367:25
3111.87:367:25

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 5.15 kWh/m².

For context, solar energy here swings from a low near 4.54 kWh/m² to a high of 5.82 kWh/m² in March across the year — January's 5.15 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.9Bright
54.9Bright
64.9Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
315.5Bright
Planning a trip in January

Hazard calendar for Sitiawan

In seasonPeak

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

Sitiawan 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 Sitiawan?

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

3.3
Sightseeing
3rd-best month of the year
4.4
Beach & pool
5th-best month of the year

January is a weaker month for outdoor sightseeing in Sitiawan.

What to pack for Sitiawan in January

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

In January, Sitiawan sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

Sea temperature near Sitiawan 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 13 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
Feb30Tropical
Mar30Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Sitiawan in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sitiawan peaks around February 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 19UV 14Jul 11UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar13Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug12Extreme
Sep14Extreme
Oct13Extreme
Nov11Extreme
Dec10Extreme

Air quality in Sitiawan 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 Sitiawan is worst in September — around 25 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (November, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1325 µg/m³Nov 2115 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb19Moderate
Mar20Moderate
Apr19Moderate
May20Moderate
Jun21Moderate
Jul24Moderate
Aug23Moderate
Sep25Moderate
Oct22Moderate
Nov14Moderate
Dec16Moderate
Location & terrain

Where is Sitiawan?

Sitiawan sits at 4.2°N, 100.7°E, 9 m above sea level, in Malaysia. The nearest listed city is Seri Manjung, 4.0 km away.

Topography around Sitiawan

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

Within 3 km, the terrain around Sitiawan has only modest variations in elevation — a maximum elevation change of 21 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 375 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,873 m.

The land around Sitiawan is covered by trees (57%) and artificial surfaces (32%) within 3 km, trees (58%) and water (28%) within 16 km, and trees (46%) and water (46%) within 80 km.

3 km
21 m
16 km
375 m
80 km
1,873 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
January weather nearby: Seri Manjung 4.0 km · Lumut 8.0 km · Pantai Remis 28 km · Parit 38 km · Teluk Intan 42 km · Hutan Melintang 46 km · Batu Gajah 47 km · Kampar 51 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 Sitiawan (4.2168°, 100.6996°, 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).