Serian weather in April

In April, Serian sees average daytime highs of 32°C and overnight lows near 24°C, with 218 mm of rain across 26.9 wet days and about 12 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 2% of the time in April, and the air most often feels miserable.

Daylight stretches from about 12 hours at the start of April to 12 hours by month's end. Set against the rest of the year, April is Serian's 5th-clearest and 12th-windiest month. For the whole year in context, see Serian's year-round climate.

Daytime high: 32°; 5th warmest
Overnight low: 24°; 11th coldest
Rainfall: 218 mm; 26.9 wet days
Daylight: 12 hours; 6:37 AM – 6:39 PM
Cloud cover: 84%; 5th clearest
Wind: 4 km/h; 12th windiest
Solar energy: 5.03 kWh/m²
Travel score: 2.4; out of 10

Serian is town in Sarawak, Malaysia.

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

← March Serian year-round climate May →Best places to visit in April

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical April day in Serian reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 33°C. Set against its neighbours, April runs on par with March and on par with May.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	31	31	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32	32
Avg low (°C)	23	23	23	23	23	23	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24

	Avg high (°C)	Avg low (°C)
1	31	23
2	31	23
3	32	23
4	32	23
5	32	23
6	32	23
7	32	24
8	32	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

How April really feels in Serian

Once humidity and wind are folded in, April averages 30 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

11 feel dangerously hot (≥ 39°C)

Days feeling ≤ 0°C

wind chill below the day's low

The story in April is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Serian weather by month

How April compares with the rest of the year at a glance. April is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 23°	268	27.7	11.9	2.8
Feb	30° / 23°	231	23.2	12	2.9
Mar	31° / 23°	224	26.6	12	2.6
Apr	32° / 24°	218	26.9	12	2.4
May	32° / 24°	196	25.2	12.1	2.5
Jun	32° / 24°	147	20	12.1	3.0
Jul	32° / 23°	130	18.2	12.1	3.2
Aug	32° / 23°	150	19.7	12	2.9
Sep	32° / 23°	193	23.4	12	2.7
Oct	31° / 23°	253	27.8	12	2.5
Nov	31° / 23°	261	28.7	11.9	2.4
Dec	31° / 23°	292	28.1	11.9	2.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 9% of April, with mostly cloudy or overcast conditions the remaining 90%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	6	6	6	6	7	7	8	8	8	10	10	11	11	11	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13
Cloudier (%)	94	94	94	94	93	93	92	92	92	90	90	89	89	89	88	88	88	88	88	88	88	87	87	87	87	87	87	87	87	87

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	8	92
8	8	92
9	8	92
10	10	90
11	10	90
12	11	89
13	11	89
14	11	89
15	12	88
16	12	88
17	12	88
18	12	88
19	12	88
20	12	88
21	12	88
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

Chance of precipitation in April

Any precipitation

Serian gets around 218 mm of rain over 26.9 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 90% and peaks near 90% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	90	90	90	90	90	90	90	89	89	89	89	89	89	89	89	89	90	90	90	90	90	90	90	90	90	90	90	90	89	89

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	89
9	89
10	89
11	89
12	89
13	89
14	89
15	89
16	89
17	90
18	90
19	90
20	90
21	90
22	90
23	90
24	90
25	90
26	90
27	90
28	90
29	89
30	89

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the miserable band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Oppressive (%)	49	48	48	47	46	46	45	44	43	41	40	39	37	36	34	32	31	29	27	25	24	22	21	19	18	17	16	15	15	15
Miserable (%)	51	52	52	53	54	54	55	56	57	59	60	61	63	64	66	68	69	71	73	75	76	78	79	81	82	83	84	85	85	85

	Oppressive (%)	Miserable (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	45	55
8	44	56
9	43	57
10	41	59
11	40	60
12	39	61
13	37	63
14	36	64
15	34	66
16	32	68
17	31	69
18	29	71
19	27	73
20	25	75
21	24	76
22	22	78
23	21	79
24	19	81
25	18	82
26	17	83
27	16	84
28	15	85
29	15	85
30	15	85

Wind in April

Winds average 4 km/h in April, the calmest month.

Across April, 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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	4	calm
2	4	calm
3	4	calm
4	4	calm
5	4	calm
6	4	calm
7	4	calm
8	4	calm
9	4	calm
10	4	calm
11	4	calm
12	4	calm
13	4	calm
14	4	calm
15	4	calm
16	4	calm
17	4	calm
18	4	calm
19	4	calm
20	4	calm
21	4	calm
22	4	calm
23	4	calm
24	4	calm
25	4	calm
26	4	calm
27	4	calm
28	4	calm
29	4	calm
30	4	calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 0 minutes over April. Sunrise moves from 6:42 AM to 6:34 AM, and sunset from 6:43 PM to 6:36 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	6:42	6:42	6:41	6:41	6:41	6:40	6:40	6:40	6:39	6:39	6:39	6:38	6:38	6:38	6:37	6:37	6:37	6:37	6:36	6:36	6:36	6:36	6:35	6:35	6:35	6:35	6:34	6:34	6:34	6:34
Sunset (PM)	6:43	6:42	6:42	6:42	6:42	6:41	6:41	6:41	6:40	6:40	6:40	6:40	6:39	6:39	6:39	6:39	6:38	6:38	6:38	6:38	6:38	6:37	6:37	6:37	6:37	6:37	6:37	6:37	6:36	6:36

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.0	6:42	6:43
2	12.0	6:42	6:42
3	12.0	6:41	6:42
4	12.0	6:41	6:42
5	12.0	6:41	6:42
6	12.0	6:40	6:41
7	12.0	6:40	6:41
8	12.0	6:40	6:41
9	12.0	6:39	6:40
10	12.0	6:39	6:40
11	12.0	6:39	6:40
12	12.0	6:38	6:40
13	12.0	6:38	6:39
14	12.0	6:38	6:39
15	12.0	6:37	6:39
16	12.0	6:37	6:39
17	12.0	6:37	6:38
18	12.0	6:37	6:38
19	12.0	6:36	6:38
20	12.0	6:36	6:38
21	12.0	6:36	6:38
22	12.0	6:36	6:37
23	12.0	6:35	6:37
24	12.0	6:35	6:37
25	12.0	6:35	6:37
26	12.0	6:35	6:37
27	12.0	6:34	6:37
28	12.0	6:34	6:37
29	12.0	6:34	6:36
30	12.0	6:34	6:36

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.03 kWh/m².

For context, solar energy here swings from a low near 4.23 kWh/m² to a high of 5.24 kWh/m² in August across the year — April's 5.03 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	4.9	4.9	4.9
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.0	Bright
5	5.0	Bright
6	5.0	Bright
7	5.0	Bright
8	5.0	Bright
9	5.0	Bright
10	5.0	Bright
11	5.0	Bright
12	5.1	Bright
13	5.1	Bright
14	5.1	Bright
15	5.1	Bright
16	5.1	Bright
17	5.1	Bright
18	5.1	Bright
19	5.0	Bright
20	5.0	Bright
21	5.0	Bright
22	5.0	Bright
23	5.0	Bright
24	5.0	Bright
25	5.0	Bright
26	5.0	Bright
27	5.0	Bright
28	4.9	Bright
29	4.9	Bright
30	4.9	Bright

Planning a trip in April

Is April a good time to visit Serian?

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

2.4

Sightseeing

11th-best month of the year

3.7

Beach & pool

11th-best month of the year

April is a weaker month for outdoor sightseeing in Serian.

What to pack for Serian in April

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

In April, Serian sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 27 days see rain.

light clothesrain gearsun protection

Sea temperature near Serian in April

The nearest coast averages about 30°C in April — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 51 km away) is warmest in June 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	28	28	29	30	30	30	30	30	30	30	30	29
Comfort	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical	Tropical

	Sea temperature (°C)	Comfort
Jan	28	Tropical
Feb	28	Tropical
Mar	29	Tropical
Apr	30	Tropical
May	30	Tropical
Jun	30	Tropical
Jul	30	Tropical
Aug	30	Tropical
Sep	30	Tropical
Oct	30	Tropical
Nov	30	Tropical
Dec	29	Tropical

UV index in Serian in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Serian peaks around February 18 at about 16 (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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	14	16	15	15	13	11	11	13	13	14	12	11
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme

	UV index (midday)	Level
Jan	14	Extreme
Feb	16	Extreme
Mar	15	Extreme
Apr	15	Extreme
May	13	Extreme
Jun	11	Extreme
Jul	11	Extreme
Aug	13	Extreme
Sep	13	Extreme
Oct	14	Extreme
Nov	12	Extreme
Dec	11	Extreme

Air quality in Serian in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Serian is worst in August — around 36 µg/m³ PM2.5 (poor), about 3.2× the cleanest month (January, 11 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	11	12	14	15	15	15	23	36	36	21	13	12
Level	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	11	Good
Feb	12	Moderate
Mar	14	Moderate
Apr	15	Moderate
May	15	Moderate
Jun	15	Moderate
Jul	23	Moderate
Aug	36	Poor
Sep	36	Poor
Oct	21	Moderate
Nov	13	Moderate
Dec	12	Moderate

Location & terrain

Where is Serian?

Serian sits at 1.2°N, 110.6°E, 20 m above sea level, in Malaysia. The nearest listed city is Tebedu, 27 km away.

Topography around Serian

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

Within 3 km, the terrain around Serian has significant variations in elevation — a maximum elevation change of 327 m around an average of 33 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 775 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,649 m.

The land around Serian is covered by trees (82%) within 3 km, trees (95%) within 16 km, and trees (83%) within 80 km.

3 km

327 m

trees 82%

16 km

775 m

trees 95%

80 km

1,649 m

trees 83%

treesgrasslandartificial surfacesbare terrainwatermangroves

← March Serian year-round climate May →Best places to visit in April

April weather nearby: Tebedu 27 km · Siburan 29 km · Simunjan 32 km · Kuching 50 km · Bau 54 km · Lundu 97 km · Sri Aman 99 km · Saratok 106 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

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 Serian (1.1667°, 110.5667°, elevation 20 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).

	Avg high (°C)	Avg low (°C)
1	31	23
2	31	23
3	32	23
4	32	23
5	32	23
6	32	23
7	32	24
8	32	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	8	92
8	8	92
9	8	92
10	10	90
11	10	90
12	11	89
13	11	89
14	11	89
15	12	88
16	12	88
17	12	88
18	12	88
19	12	88
20	12	88
21	12	88
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	89
9	89
10	89
11	89
12	89
13	89
14	89
15	89
16	89
17	90
18	90
19	90
20	90
21	90
22	90
23	90
24	90
25	90
26	90
27	90
28	90
29	89
30	89

	Oppressive (%)	Miserable (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	45	55
8	44	56
9	43	57
10	41	59
11	40	60
12	39	61
13	37	63
14	36	64
15	34	66
16	32	68
17	31	69
18	29	71
19	27	73
20	25	75
21	24	76
22	22	78
23	21	79
24	19	81
25	18	82
26	17	83
27	16	84
28	15	85
29	15	85
30	15	85

	Avg high (°C)	Avg low (°C)
1	31	23
2	31	23
3	32	23
4	32	23
5	32	23
6	32	23
7	32	24
8	32	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	8	92
8	8	92
9	8	92
10	10	90
11	10	90
12	11	89
13	11	89
14	11	89
15	12	88
16	12	88
17	12	88
18	12	88
19	12	88
20	12	88
21	12	88
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	89
9	89
10	89
11	89
12	89
13	89
14	89
15	89
16	89
17	90
18	90
19	90
20	90
21	90
22	90
23	90
24	90
25	90
26	90
27	90
28	90
29	89
30	89

	Oppressive (%)	Miserable (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	45	55
8	44	56
9	43	57
10	41	59
11	40	60
12	39	61
13	37	63
14	36	64
15	34	66
16	32	68
17	31	69
18	29	71
19	27	73
20	25	75
21	24	76
22	22	78
23	21	79
24	19	81
25	18	82
26	17	83
27	16	84
28	15	85
29	15	85
30	15	85

	Avg high (°C)	Avg low (°C)
1	31	23
2	31	23
3	32	23
4	32	23
5	32	23
6	32	23
7	32	24
8	32	24
9	32	24
10	32	24
11	32	24
12	32	24
13	32	24
14	32	24
15	32	24
16	32	24
17	32	24
18	32	24
19	32	24
20	32	24
21	32	24
22	32	24
23	32	24
24	32	24
25	32	24
26	32	24
27	32	24
28	32	24
29	32	24
30	32	24

	Clearer (%)	Cloudier (%)
1	6	94
2	6	94
3	6	94
4	6	94
5	7	93
6	7	93
7	8	92
8	8	92
9	8	92
10	10	90
11	10	90
12	11	89
13	11	89
14	11	89
15	12	88
16	12	88
17	12	88
18	12	88
19	12	88
20	12	88
21	12	88
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

	Rain chance (%)
1	90
2	90
3	90
4	90
5	90
6	90
7	90
8	89
9	89
10	89
11	89
12	89
13	89
14	89
15	89
16	89
17	90
18	90
19	90
20	90
21	90
22	90
23	90
24	90
25	90
26	90
27	90
28	90
29	89
30	89

	Oppressive (%)	Miserable (%)
1	49	51
2	48	52
3	48	52
4	47	53
5	46	54
6	46	54
7	45	55
8	44	56
9	43	57
10	41	59
11	40	60
12	39	61
13	37	63
14	36	64
15	34	66
16	32	68
17	31	69
18	29	71
19	27	73
20	25	75
21	24	76
22	22	78
23	21	79
24	19	81
25	18	82
26	17	83
27	16	84
28	15	85
29	15	85
30	15	85