Cianjur climate — normals and trends
Cianjur (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.3 °C and it receives 2,305 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 October (25.0 °C on average) and the coldest is January (23.6 °C). Rainfall peaks in December.
Cianjur averages 0 frost days, 89 hot days (≥ 30 °C) and 258 rainy days per year.
Cianjur has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.6 °C (on 30 October 1997) and the coldest 14.6 °C (on 20 June 1941).
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
CianjurWest Java
- coords
- -6.82°, 107.14°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.3°C
Average daily high
28.9°C
Average daily low
21.0°C
Annual rainfall
2,305mm
Sunshine / day
9.7h
Mean relative humidity
83%
Average peak wind
7.4km/h
Seasonal range
1.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
89 d/yr
Rainy days (≥ 1 mm)
258 d/yr
Annual snowfall
0.0 cm
Average feels-like high
33.9 °C
Average feels-like low
24.5 °C
Average peak gust
24.1 km/h
Tropical nights (≥ 20 °C)
306 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.67 · 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
36.6 °C
30 October 1997
Coldest day
14.6 °C
20 June 1941
Wettest day
195 mm
18 April 2013
Windiest day
18.7 km/h
1 December 2000
Strongest gust
64.4 km/h
10 February 2001
Hottest feels-like
39.8 °C
22 February 2024
Coldest feels-like
15.3 °C
20 June 1941
Sunniest day
12.4 h
27 November 1942
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 | 28.8 °C | +1.2 °C | 366 mm | +82 mm |
| Feb | 28.9 °C | +1.2 °C | 279 mm | +11 mm |
| Mar | 29.3 °C | +0.8 °C | 314 mm | +46 mm |
| Apr | 29.1 °C | +0.3 °C | 302 mm | +66 mm |
| May | 29.6 °C | +0.7 °C | 300 mm | +145 mm |
| Jun | 28.8 °C | -0.1 °C | 158 mm | +71 mm |
| Jul | 28.8 °C | -0.4 °C | 86 mm | +16 mm |
| Aug | 28.7 °C | -1.1 °C | 164 mm | +94 mm |
| Sep | 29.3 °C | -0.9 °C | 248 mm | +147 mm |
| Oct | 30.0 °C | 0.0 °C | 249 mm | +49 mm |
| Nov | 29.7 °C | +0.6 °C | 282 mm | +2 mm |
| Dec | 29.5 °C | +1.1 °C | 242 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 Cianjur?
Cianjur has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.3 °C and it receives 2,305 mm of precipitation per year.
What is the hottest day ever recorded in Cianjur?
The hottest day measured in Cianjur between 1940 and 2025 was 30 October 1997, reaching 36.6 °C.
What is the coldest day in Cianjur?
The coldest day measured in Cianjur between 1940 and 2025 was 20 June 1941, at 14.6 °C.
Does it snow in Cianjur?
Almost never: Cianjur sees virtually no snow, with about 0 frost days per year.
Has the climate of Cianjur warmed?
Yes: Cianjur warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cianjur?
The wettest day measured in Cianjur between 1940 and 2025 was 18 April 2013, with 195 mm of rain in 24 hours.
What was the windiest day in Cianjur?
The windiest day measured in Cianjur between 1940 and 2025 was 1 December 2000, with winds reaching 18.7 km/h.
What is the warmest month in Cianjur?
The warmest month in Cianjur is October (25.0 °C on average); the coldest is January (23.6 °C).
How much does it rain in Cianjur?
Cianjur receives on average 2,305 mm of precipitation per year, spread over about 258 rainy days.
Is it sunny in Cianjur?
Cianjur gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in Cianjur?
Yes: Cianjur has on average 306 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cianjur?
In Cianjur, between 1940 and 2025, the highest apparent temperature reached 39.8 °C on 22 February 2024, and the lowest was 15.3 °C on 20 June 1941.
Compare Cianjur with another city
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Nearby cities
The climate around Cianjur