Siburan climate — normals and trends
Siburan (Malaysia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 2,424 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 (26.6 °C on average) and the coldest is January (25.3 °C). Rainfall peaks in December.
Siburan averages 0 frost days, 247 hot days (≥ 30 °C) and 297 rainy days per year.
Siburan has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.8 °C (on 8 August 2009) and the coldest 16.6 °C (on 16 February 1949).
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
SiburanSarawak
- coords
- 1.37°, 110.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
30.7°C
Average daily low
22.9°C
Annual rainfall
2,424mm
Sunshine / day
9.3h
Mean relative humidity
87%
Average peak wind
8.3km/h
Seasonal range
1.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
247 d/yr
Rainy days (≥ 1 mm)
297 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.1 °C
Average feels-like low
27.6 °C
Average peak gust
24.1 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.86 · 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
36.8 °C
8 August 2009
Coldest day
16.6 °C
16 February 1949
Wettest day
258 mm
19 May 2006
Windiest day
21.4 km/h
20 January 1952
Strongest gust
55.8 km/h
5 October 1971
Hottest feels-like
44.4 °C
24 April 2016
Coldest feels-like
17.9 °C
16 February 1949
Sunniest day
11.9 h
15 February 1941
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 | +0.3 °C | 516 mm | +278 mm |
| Feb | 30.3 °C | +0.4 °C | 343 mm | +138 mm |
| Mar | 30.8 °C | +0.2 °C | 339 mm | +120 mm |
| Apr | 31.8 °C | +0.6 °C | 237 mm | +29 mm |
| May | 32.4 °C | +1.0 °C | 278 mm | +90 mm |
| Jun | 32.3 °C | +1.0 °C | 111 mm | -21 mm |
| Jul | 33.1 °C | +1.8 °C | 61 mm | -64 mm |
| Aug | 31.4 °C | 0.0 °C | 132 mm | -25 mm |
| Sep | 31.6 °C | +0.6 °C | 297 mm | +92 mm |
| Oct | 32.0 °C | +1.2 °C | 153 mm | -94 mm |
| Nov | 31.7 °C | +1.3 °C | 258 mm | +17 mm |
| Dec | 31.0 °C | +1.1 °C | 304 mm | +45 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 Siburan?
Siburan has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 2,424 mm of precipitation per year.
What is the hottest day ever recorded in Siburan?
The hottest day measured in Siburan between 1940 and 2025 was 8 August 2009, reaching 36.8 °C.
What is the coldest day in Siburan?
The coldest day measured in Siburan between 1940 and 2025 was 16 February 1949, at 16.6 °C.
Does it snow in Siburan?
Almost never: Siburan sees virtually no snow, with about 0 frost days per year.
Has the climate of Siburan warmed?
Yes: Siburan warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Siburan?
The wettest day measured in Siburan between 1940 and 2025 was 19 May 2006, with 258 mm of rain in 24 hours.
What was the windiest day in Siburan?
The windiest day measured in Siburan between 1940 and 2025 was 20 January 1952, with winds reaching 21.4 km/h.
What is the warmest month in Siburan?
The warmest month in Siburan is May (26.6 °C on average); the coldest is January (25.3 °C).
How much does it rain in Siburan?
Siburan receives on average 2,424 mm of precipitation per year, spread over about 297 rainy days.
Is it sunny in Siburan?
Siburan gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Siburan?
Yes: Siburan has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Siburan?
In Siburan, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 24 April 2016, and the lowest was 17.9 °C on 16 February 1949.
Compare Siburan with another city
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Nearby cities
The climate around Siburan