Cepu climate — normals and trends
Cepu (Indonesia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.7 °C and it receives 2,001 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 (28.1 °C on average) and the coldest is January (25.8 °C). Rainfall peaks in December.
Cepu averages 0 frost days, 317 hot days (≥ 30 °C) and 211 rainy days per year.
Cepu has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.7 °C (on 9 November 1990) and the coldest 16.1 °C (on 9 October 1997).
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
CepuCentral Java
- coords
- -7.15°, 111.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.7°C
Average daily high
32.1°C
Average daily low
22.8°C
Annual rainfall
2,001mm
Sunshine / day
10.2h
Mean relative humidity
78%
Average peak wind
10.5km/h
Seasonal range
2.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
317 d/yr
Rainy days (≥ 1 mm)
211 d/yr
Annual snowfall
0.0 cm
Average feels-like high
37.2 °C
Average feels-like low
27.0 °C
Average peak gust
26.3 km/h
Tropical nights (≥ 20 °C)
357 d/yr
Solar radiation
19.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.56 · 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
39.7 °C
9 November 1990
Coldest day
16.1 °C
9 October 1997
Wettest day
154 mm
9 March 2024
Windiest day
32.4 km/h
11 February 2001
Strongest gust
71.3 km/h
15 March 2012
Hottest feels-like
44.3 °C
2 December 2019
Coldest feels-like
16.5 °C
9 October 1997
Sunniest day
12.4 h
21 December 2023
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 | 31.3 °C | +0.8 °C | 409 mm | +117 mm |
| Feb | 31.9 °C | +1.3 °C | 268 mm | -18 mm |
| Mar | 31.6 °C | +0.5 °C | 404 mm | +116 mm |
| Apr | 31.6 °C | +0.3 °C | 184 mm | -13 mm |
| May | 31.5 °C | +0.1 °C | 362 mm | +240 mm |
| Jun | 31.3 °C | -0.4 °C | 93 mm | +28 mm |
| Jul | 31.6 °C | -0.7 °C | 19 mm | -15 mm |
| Aug | 32.2 °C | -0.9 °C | 135 mm | +114 mm |
| Sep | 33.4 °C | -0.7 °C | 84 mm | +46 mm |
| Oct | 34.4 °C | +0.1 °C | 271 mm | +154 mm |
| Nov | 31.5 °C | -1.4 °C | 333 mm | +93 mm |
| Dec | 31.9 °C | +0.5 °C | 260 mm | -41 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 Cepu?
Cepu has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.7 °C and it receives 2,001 mm of precipitation per year.
What is the hottest day ever recorded in Cepu?
The hottest day measured in Cepu between 1940 and 2025 was 9 November 1990, reaching 39.7 °C.
What is the coldest day in Cepu?
The coldest day measured in Cepu between 1940 and 2025 was 9 October 1997, at 16.1 °C.
Does it snow in Cepu?
Almost never: Cepu sees virtually no snow, with about 0 frost days per year.
Has the climate of Cepu warmed?
Yes: Cepu warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cepu?
The wettest day measured in Cepu between 1940 and 2025 was 9 March 2024, with 154 mm of rain in 24 hours.
What was the windiest day in Cepu?
The windiest day measured in Cepu between 1940 and 2025 was 11 February 2001, with winds reaching 32.4 km/h.
What is the warmest month in Cepu?
The warmest month in Cepu is October (28.1 °C on average); the coldest is January (25.8 °C).
How much does it rain in Cepu?
Cepu receives on average 2,001 mm of precipitation per year, spread over about 211 rainy days.
Is it sunny in Cepu?
Cepu gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Cepu?
Yes: Cepu has on average 357 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cepu?
In Cepu, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 2 December 2019, and the lowest was 16.5 °C on 9 October 1997.
Compare Cepu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cepu