Klang climate — normals and trends
Klang (Malaysia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 27.2 °C and it receives 1,806 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 June (27.9 °C on average) and the coldest is December (26.2 °C). Rainfall peaks in November.
Klang averages 0 frost days, 281 hot days (≥ 30 °C) and 259 rainy days per year.
Klang has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.5 °C (on 11 March 2014) and the coldest 19.6 °C (on 18 January 1948).
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
KlangSelangor
- coords
- 3.04°, 101.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.2°C
Average daily high
31.2°C
Average daily low
24.1°C
Annual rainfall
1,806mm
Sunshine / day
10.3h
Mean relative humidity
81%
Average peak wind
11.0km/h
Seasonal range
1.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
281 d/yr
Rainy days (≥ 1 mm)
259 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.3 °C
Average feels-like low
28.7 °C
Average peak gust
27.4 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
20.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.73 · 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
36.5 °C
11 March 2014
Coldest day
19.6 °C
18 January 1948
Wettest day
169 mm
20 January 2007
Windiest day
30.0 km/h
24 November 1953
Strongest gust
58.7 km/h
20 October 1970
Hottest feels-like
43.3 °C
10 March 2020
Coldest feels-like
20.8 °C
9 January 1943
Sunniest day
12.0 h
9 October 1941
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 | 30.6 °C | +0.2 °C | 226 mm | +64 mm |
| Feb | 31.7 °C | +0.5 °C | 134 mm | +13 mm |
| Mar | 31.6 °C | 0.0 °C | 155 mm | +1 mm |
| Apr | 31.7 °C | +0.1 °C | 223 mm | +54 mm |
| May | 32.3 °C | +0.6 °C | 102 mm | -35 mm |
| Jun | 33.7 °C | +1.9 °C | 65 mm | -18 mm |
| Jul | 33.6 °C | +2.0 °C | 25 mm | -60 mm |
| Aug | 32.6 °C | +1.0 °C | 94 mm | -8 mm |
| Sep | 31.5 °C | +0.2 °C | 137 mm | +10 mm |
| Oct | 31.7 °C | +0.6 °C | 157 mm | -15 mm |
| Nov | 31.0 °C | +0.7 °C | 497 mm | +246 mm |
| Dec | 30.3 °C | +0.3 °C | 359 mm | +117 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 Klang?
Klang has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 27.2 °C and it receives 1,806 mm of precipitation per year.
What is the hottest day ever recorded in Klang?
The hottest day measured in Klang between 1940 and 2025 was 11 March 2014, reaching 36.5 °C.
What is the coldest day in Klang?
The coldest day measured in Klang between 1940 and 2025 was 18 January 1948, at 19.6 °C.
Does it snow in Klang?
Almost never: Klang sees virtually no snow, with about 0 frost days per year.
Has the climate of Klang warmed?
Yes: Klang warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Klang?
The wettest day measured in Klang between 1940 and 2025 was 20 January 2007, with 169 mm of rain in 24 hours.
What was the windiest day in Klang?
The windiest day measured in Klang between 1940 and 2025 was 24 November 1953, with winds reaching 30.0 km/h.
What is the warmest month in Klang?
The warmest month in Klang is June (27.9 °C on average); the coldest is December (26.2 °C).
How much does it rain in Klang?
Klang receives on average 1,806 mm of precipitation per year, spread over about 259 rainy days.
Is it sunny in Klang?
Klang gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Klang?
Yes: Klang has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Klang?
In Klang, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 10 March 2020, and the lowest was 20.8 °C on 9 January 1943.
Compare Klang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Klang