Selangau weather in May

In May, Selangau sees average daytime highs of 31°C and overnight lows near 24°C, with 236 mm of rain across 26.6 wet days and about 12.1 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 3% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 06 min at the start of May to 12 h 06 min by month's end. Set against the rest of the year, May is Selangau's 4th-clearest and 11th-windiest month. For the whole year in context, see Selangau's year-round climate.

Daytime high
31°
1st warmest
Overnight low
24°
12th coldest
Rainfall
236 mm
26.6 wet days
Daylight
12 h 06 min
6:24 AM – 6:30 PM
Cloud cover
83%
4th clearest
Wind
4 km/h
11th windiest
Solar energy
4.82 kWh/m²
Travel score
2.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Selangau reaches about 31°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 29°C and 33°C. Set against its neighbours, May runs on par with April and on par with June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13124
23124
33124
43124
53124
63124
73124
83124
93124
103124
113124
123124
133124
143124
153124
163124
173124
183124
193124
203124
213124
223124
233124
243124
253124
263124
273124
283124
293124
303124
313124

How May really feels in Selangau

Once humidity and wind are folded in, May 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
22 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Selangau weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°32428.311.92.7
Feb30° / 23°2602411.92.8
Mar31° / 23°24826.8122.6
Apr31° / 24°26027.612.12.4
May31° / 24°23626.612.12.6
Jun31° / 23°1942212.13.0
Jul31° / 23°19221.312.13.1
Aug31° / 23°20622.912.12.9
Sep31° / 23°25124.9122.7
Oct31° / 23°29228.411.92.5
Nov31° / 23°31328.711.92.4
Dec30° / 23°3562911.92.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 10% of May, with mostly cloudy or overcast conditions the remaining 86%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1991
21090
31090
41090
51090
61189
71189
81288
91288
101288
111387
121486
131486
141585
151585
161684
171684
181783
191783
201783
211783
221684
231684
241684
251684
261684
271585
281585
291486
301486
311486

Chance of precipitation in May

Any precipitation

Selangau gets around 236 mm of rain over 26.6 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 86% 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
490
590
689
788
888
987
1086
1185
1285
1384
1484
1583
1683
1783
1883
1983
2083
2183
2283
2383
2484
2584
2684
2785
2885
2985
3084
3184

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11090
21090
31090
41189
51189
61189
71288
81288
91288
101288
111288
121288
131288
141288
151288
161288
171387
181387
191387
201387
211486
221486
231585
241585
251684
261684
271783
281783
291783
301882
311882

Wind in May

Winds average 4 km/h in May.

Across May, 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 May

DaylightNight

Daylight runs from about 12 h 06 min at the start of May to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over May. Sunrise moves from 6:25 AM to 6:24 AM, and sunset from 6:31 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:256:31
212.16:256:30
312.16:256:30
412.16:256:30
512.16:256:30
612.16:246:30
712.16:246:30
812.16:246:30
912.16:246:30
1012.16:246:30
1112.16:246:30
1212.16:246:30
1312.16:246:30
1412.16:246:30
1512.16:246:30
1612.16:246:30
1712.16:236:30
1812.16:236:31
1912.16:236:31
2012.16:236:31
2112.16:236:31
2212.16:236:31
2312.16:246:31
2412.16:246:31
2512.16:246:31
2612.16:246:31
2712.16:246:31
2812.16:246:32
2912.16:246:32
3012.16:246:32
3112.16:246:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.82 kWh/m².

For context, solar energy here swings from a low near 4.01 kWh/m² to a high of 5.06 kWh/m² in August across the year — May's 4.82 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.8Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.8Bright
214.8Bright
224.8Bright
234.8Bright
244.8Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
314.7Bright
Planning a trip in May

Hazard calendar for Selangau

In seasonPeak

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

Selangau 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 May a good time to visit Selangau?

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

2.6
Sightseeing
7th-best month of the year
3.9
Beach & pool
6th-best month of the year

May is a weaker month for outdoor sightseeing in Selangau.

What to pack for Selangau in May

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

In May, Selangau sees daytime highs around 31°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 Selangau in May

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

The sea at the nearest coast (about 45 km away) 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
Aug30Tropical
Sep30Tropical
Oct30Tropical
Nov29Tropical
Dec29Tropical

UV index in Selangau in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Selangau 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
Nov12Extreme
Dec12Extreme

Air quality in Selangau in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Selangau is worst in September — around 19 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Dec 148 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb10Good
Mar11Good
Apr10Good
May10Good
Jun10Good
Jul12Good
Aug14Moderate
Sep19Moderate
Oct12Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Selangau?

Selangau sits at 2.5°N, 112.3°E, 96 m above sea level, in Malaysia. The nearest listed city is Dalat, 31 km away.

Topography around Selangau

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

Within 3 km, the terrain around Selangau has only modest variations in elevation — a maximum elevation change of 164 m around an average of 38 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 352 m; within 80 km, large variations in elevation — a maximum elevation change of 1,068 m.

The land around Selangau is covered by trees (96%) within 3 km, trees (98%) within 16 km, and trees (83%) within 80 km.

3 km
164 m
16 km
352 m
80 km
1,068 m
treesgrasslandartificial surfaceswater
May weather nearby: Dalat 31 km · Mukah 49 km · Sibu Jaya 50 km · Kanowit 51 km · Sibu 62 km · Tatau 71 km · Julau 72 km · Kapit 90 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 Selangau (2.5248°, 112.3254°, elevation 96 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).