Kepanjen climate — normals and trends
Kepanjen (Indonesia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 24.1 °C and it receives 2,137 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 April (24.8 °C on average) and the coldest is August (22.7 °C). Rainfall peaks in January.
Kepanjen averages 0 frost days, 26 hot days (≥ 30 °C) and 222 rainy days per year.
Kepanjen 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 33.7 °C (on 26 November 1982) and the coldest 15.1 °C (on 27 August 1963).
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
KepanjenEast Java
- coords
- -8.13°, 112.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.1°C
Average daily high
28.0°C
Average daily low
21.3°C
Annual rainfall
2,137mm
Sunshine / day
9.9h
Mean relative humidity
84%
Average peak wind
13.6km/h
Seasonal range
2.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
26 d/yr
Rainy days (≥ 1 mm)
222 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.4 °C
Average feels-like low
24.2 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
298 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.76 · 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
33.7 °C
26 November 1982
Coldest day
15.1 °C
27 August 1963
Wettest day
309 mm
29 October 1989
Windiest day
28.6 km/h
13 February 2001
Strongest gust
77.4 km/h
13 February 2001
Hottest feels-like
40.4 °C
8 March 2016
Coldest feels-like
14.4 °C
27 August 1963
Sunniest day
12.5 h
18 December 1940
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 | 28.9 °C | +0.8 °C | 377 mm | +54 mm |
| Feb | 29.7 °C | +1.4 °C | 223 mm | -78 mm |
| Mar | 29.3 °C | +0.9 °C | 351 mm | +56 mm |
| Apr | 28.8 °C | +0.4 °C | 136 mm | -49 mm |
| May | 28.7 °C | +0.6 °C | 386 mm | +257 mm |
| Jun | 28.1 °C | +0.7 °C | 28 mm | -49 mm |
| Jul | 26.8 °C | 0.0 °C | 34 mm | -11 mm |
| Aug | 27.8 °C | +0.8 °C | 70 mm | +37 mm |
| Sep | 27.8 °C | 0.0 °C | 98 mm | +38 mm |
| Oct | 28.8 °C | +0.3 °C | 245 mm | +119 mm |
| Nov | 28.3 °C | -0.2 °C | 484 mm | +236 mm |
| Dec | 29.1 °C | +1.0 °C | 259 mm | -55 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 Kepanjen?
Kepanjen has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 24.1 °C and it receives 2,137 mm of precipitation per year.
What is the hottest day ever recorded in Kepanjen?
The hottest day measured in Kepanjen between 1940 and 2025 was 26 November 1982, reaching 33.7 °C.
What is the coldest day in Kepanjen?
The coldest day measured in Kepanjen between 1940 and 2025 was 27 August 1963, at 15.1 °C.
Does it snow in Kepanjen?
Almost never: Kepanjen sees virtually no snow, with about 0 frost days per year.
Has the climate of Kepanjen warmed?
Yes: Kepanjen warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kepanjen?
The wettest day measured in Kepanjen between 1940 and 2025 was 29 October 1989, with 309 mm of rain in 24 hours.
What was the windiest day in Kepanjen?
The windiest day measured in Kepanjen between 1940 and 2025 was 13 February 2001, with winds reaching 28.6 km/h.
What is the warmest month in Kepanjen?
The warmest month in Kepanjen is April (24.8 °C on average); the coldest is August (22.7 °C).
How much does it rain in Kepanjen?
Kepanjen receives on average 2,137 mm of precipitation per year, spread over about 222 rainy days.
Is it sunny in Kepanjen?
Kepanjen gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Kepanjen?
Yes: Kepanjen has on average 298 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kepanjen?
In Kepanjen, between 1940 and 2025, the highest apparent temperature reached 40.4 °C on 8 March 2016, and the lowest was 14.4 °C on 27 August 1963.
Compare Kepanjen with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kepanjen