Betong climate — normals and trends
Betong (Malaysia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 2,742 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 (26.7 °C on average) and the coldest is January (25.4 °C). Rainfall peaks in December.
Betong averages 0 frost days, 219 hot days (≥ 30 °C) and 300 rainy days per year.
Betong 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 36.0 °C (on 16 August 2006) and the coldest 17.9 °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
BetongSarawak
- coords
- 1.40°, 111.52°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
30.4°C
Average daily low
23.2°C
Annual rainfall
2,742mm
Sunshine / day
9.3h
Mean relative humidity
86%
Average peak wind
8.5km/h
Seasonal range
1.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
219 d/yr
Rainy days (≥ 1 mm)
300 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.6 °C
Average feels-like low
27.9 °C
Average peak gust
22.9 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
17.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.88 · 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
36.0 °C
16 August 2006
Coldest day
17.9 °C
13 January 1972
Wettest day
199 mm
23 August 2020
Windiest day
22.1 km/h
10 February 2001
Strongest gust
51.1 km/h
10 December 1944
Hottest feels-like
43.7 °C
24 April 2016
Coldest feels-like
19.3 °C
13 January 1972
Sunniest day
12.0 h
26 May 1950
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.8 °C | +0.5 °C | 632 mm | +350 mm |
| Feb | 30.0 °C | +0.2 °C | 283 mm | +54 mm |
| Mar | 30.8 °C | +0.5 °C | 390 mm | +141 mm |
| Apr | 31.6 °C | +0.8 °C | 214 mm | -27 mm |
| May | 32.2 °C | +1.2 °C | 210 mm | -1 mm |
| Jun | 32.0 °C | +1.1 °C | 98 mm | -59 mm |
| Jul | 32.5 °C | +1.7 °C | 63 mm | -81 mm |
| Aug | 30.9 °C | +0.1 °C | 167 mm | -5 mm |
| Sep | 31.3 °C | +0.8 °C | 204 mm | -29 mm |
| Oct | 31.5 °C | +1.2 °C | 235 mm | -28 mm |
| Nov | 31.5 °C | +1.4 °C | 244 mm | -24 mm |
| Dec | 30.8 °C | +1.1 °C | 275 mm | -17 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 Betong?
Betong has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 2,742 mm of precipitation per year.
What is the hottest day ever recorded in Betong?
The hottest day measured in Betong between 1940 and 2025 was 16 August 2006, reaching 36.0 °C.
What is the coldest day in Betong?
The coldest day measured in Betong between 1940 and 2025 was 13 January 1972, at 17.9 °C.
Does it snow in Betong?
Almost never: Betong sees virtually no snow, with about 0 frost days per year.
Has the climate of Betong warmed?
Yes: Betong warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Betong?
The wettest day measured in Betong between 1940 and 2025 was 23 August 2020, with 199 mm of rain in 24 hours.
What was the windiest day in Betong?
The windiest day measured in Betong between 1940 and 2025 was 10 February 2001, with winds reaching 22.1 km/h.
What is the warmest month in Betong?
The warmest month in Betong is May (26.7 °C on average); the coldest is January (25.4 °C).
How much does it rain in Betong?
Betong receives on average 2,742 mm of precipitation per year, spread over about 300 rainy days.
Is it sunny in Betong?
Betong gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Betong?
Yes: Betong has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Betong?
In Betong, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 24 April 2016, and the lowest was 19.3 °C on 13 January 1972.
Compare Betong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Betong