Niah climate — normals and trends
Niah (Malaysia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 2,791 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 (25.5 °C). Rainfall peaks in November.
Niah averages 0 frost days, 242 hot days (≥ 30 °C) and 308 rainy days per year.
Niah has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.8 °C (on 20 September 2024) and the coldest 18.9 °C (on 4 March 1955).
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
NiahSarawak
- coords
- 3.86°, 113.72°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
30.5°C
Average daily low
23.3°C
Annual rainfall
2,791mm
Sunshine / day
9.4h
Mean relative humidity
88%
Average peak wind
8.7km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
242 d/yr
Rainy days (≥ 1 mm)
308 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.4 °C
Average feels-like low
28.0 °C
Average peak gust
24.5 km/h
Tropical nights (≥ 20 °C)
365 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °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
35.8 °C
20 September 2024
Coldest day
18.9 °C
4 March 1955
Wettest day
150 mm
28 November 1979
Windiest day
23.7 km/h
9 December 1962
Strongest gust
61.6 km/h
5 October 1971
Hottest feels-like
44.6 °C
18 July 2023
Coldest feels-like
21.4 °C
5 March 1955
Sunniest day
12.2 h
4 July 2007
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 | 30.5 °C | +0.9 °C | 521 mm | +275 mm |
| Feb | 30.8 °C | +0.8 °C | 265 mm | +78 mm |
| Mar | 31.5 °C | +0.9 °C | 238 mm | +37 mm |
| Apr | 32.1 °C | +1.1 °C | 235 mm | +15 mm |
| May | 32.5 °C | +1.4 °C | 180 mm | -52 mm |
| Jun | 32.3 °C | +1.3 °C | 149 mm | -48 mm |
| Jul | 32.8 °C | +1.9 °C | 76 mm | -111 mm |
| Aug | 31.1 °C | +0.2 °C | 206 mm | -2 mm |
| Sep | 31.5 °C | +0.8 °C | 318 mm | +74 mm |
| Oct | 31.5 °C | +1.1 °C | 189 mm | -93 mm |
| Nov | 31.2 °C | +1.1 °C | 271 mm | -27 mm |
| Dec | 30.9 °C | +1.1 °C | 338 mm | +47 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 Niah?
Niah has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 2,791 mm of precipitation per year.
What is the hottest day ever recorded in Niah?
The hottest day measured in Niah between 1940 and 2025 was 20 September 2024, reaching 35.8 °C.
What is the coldest day in Niah?
The coldest day measured in Niah between 1940 and 2025 was 4 March 1955, at 18.9 °C.
Does it snow in Niah?
Almost never: Niah sees virtually no snow, with about 0 frost days per year.
Has the climate of Niah warmed?
Yes: Niah warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Niah?
The wettest day measured in Niah between 1940 and 2025 was 28 November 1979, with 150 mm of rain in 24 hours.
What was the windiest day in Niah?
The windiest day measured in Niah between 1940 and 2025 was 9 December 1962, with winds reaching 23.7 km/h.
What is the warmest month in Niah?
The warmest month in Niah is May (26.7 °C on average); the coldest is January (25.5 °C).
How much does it rain in Niah?
Niah receives on average 2,791 mm of precipitation per year, spread over about 308 rainy days.
Is it sunny in Niah?
Niah gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Niah?
Yes: Niah has on average 365 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Niah?
In Niah, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 18 July 2023, and the lowest was 21.4 °C on 5 March 1955.
Compare Niah with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Niah