Selangau climate — normals and trends
Selangau (Malaysia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 3,018 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is May (26.3 °C on average) and the coldest is January (25.1 °C). Rainfall peaks in December.
Selangau averages 0 frost days, 227 hot days (≥ 30 °C) and 314 rainy days per year.
Selangau has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.6 °C (on 29 July 2025) and the coldest 16.7 °C (on 13 January 1972).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
SelangauSarawak
- coords
- 2.52°, 112.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
30.4°C
Average daily low
22.8°C
Annual rainfall
3,018mm
Sunshine / day
8.9h
Mean relative humidity
89%
Average peak wind
7.6km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
227 d/yr
Rainy days (≥ 1 mm)
314 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.0 °C
Average feels-like low
27.2 °C
Average peak gust
22.5 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.89 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.6 °C
29 July 2025
Coldest day
16.7 °C
13 January 1972
Wettest day
183 mm
8 January 1963
Windiest day
22.1 km/h
28 November 1955
Strongest gust
57.6 km/h
5 October 1971
Hottest feels-like
44.2 °C
18 April 2023
Coldest feels-like
18.3 °C
13 January 1972
Sunniest day
12.1 h
24 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.8 °C | +0.4 °C | 454 mm | +160 mm |
| Feb | 30.5 °C | +0.5 °C | 317 mm | +72 mm |
| Mar | 31.1 °C | +0.6 °C | 419 mm | +160 mm |
| Apr | 31.5 °C | +0.7 °C | 298 mm | +43 mm |
| May | 32.5 °C | +1.6 °C | 158 mm | -81 mm |
| Jun | 32.6 °C | +1.7 °C | 103 mm | -78 mm |
| Jul | 33.6 °C | +2.7 °C | 91 mm | -87 mm |
| Aug | 31.2 °C | +0.3 °C | 179 mm | -31 mm |
| Sep | 31.7 °C | +1.0 °C | 271 mm | +15 mm |
| Oct | 31.9 °C | +1.5 °C | 218 mm | -68 mm |
| Nov | 31.7 °C | +1.6 °C | 234 mm | -61 mm |
| Dec | 30.8 °C | +1.1 °C | 380 mm | +60 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Selangau?
Selangau has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 3,018 mm of precipitation per year.
What is the hottest day ever recorded in Selangau?
The hottest day measured in Selangau between 1940 and 2025 was 29 July 2025, reaching 37.6 °C.
What is the coldest day in Selangau?
The coldest day measured in Selangau between 1940 and 2025 was 13 January 1972, at 16.7 °C.
Does it snow in Selangau?
Almost never: Selangau sees virtually no snow, with about 0 frost days per year.
Has the climate of Selangau warmed?
Yes: Selangau warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Selangau?
The wettest day measured in Selangau between 1940 and 2025 was 8 January 1963, with 183 mm of rain in 24 hours.
What was the windiest day in Selangau?
The windiest day measured in Selangau between 1940 and 2025 was 28 November 1955, with winds reaching 22.1 km/h.
What is the warmest month in Selangau?
The warmest month in Selangau is May (26.3 °C on average); the coldest is January (25.1 °C).
How much does it rain in Selangau?
Selangau receives on average 3,018 mm of precipitation per year, spread over about 314 rainy days.
Is it sunny in Selangau?
Selangau gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
Are there tropical nights in Selangau?
Yes: Selangau has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Selangau?
In Selangau, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 18 April 2023, and the lowest was 18.3 °C on 13 January 1972.
Compare Selangau with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Selangau