Jaten climate — normals and trends
Jaten (Indonesia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 26.0 °C and it receives 2,189 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 (27.1 °C on average) and the coldest is January (25.3 °C). Rainfall peaks in February.
Jaten averages 0 frost days, 271 hot days (≥ 30 °C) and 212 rainy days per year.
Jaten has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.0 °C (on 26 November 1982) and the coldest 16.0 °C (on 18 August 1957).
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
JatenCentral Java
- coords
- -7.58°, 110.90°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.0°C
Average daily high
31.0°C
Average daily low
22.4°C
Annual rainfall
2,189mm
Sunshine / day
9.8h
Mean relative humidity
79%
Average peak wind
10.0km/h
Seasonal range
1.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
271 d/yr
Rainy days (≥ 1 mm)
212 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.0 °C
Average feels-like low
26.2 °C
Average peak gust
26.0 km/h
Tropical nights (≥ 20 °C)
348 d/yr
Solar radiation
18.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.63 · 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
39.0 °C
26 November 1982
Coldest day
16.0 °C
18 August 1957
Wettest day
145 mm
29 December 2006
Windiest day
26.0 km/h
18 January 1982
Strongest gust
65.5 km/h
26 January 2012
Hottest feels-like
43.0 °C
19 November 2018
Coldest feels-like
16.6 °C
18 August 1957
Sunniest day
12.4 h
22 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 | 30.6 °C | +0.9 °C | 347 mm | +36 mm |
| Feb | 30.9 °C | +1.1 °C | 345 mm | +32 mm |
| Mar | 30.8 °C | +0.5 °C | 409 mm | +98 mm |
| Apr | 30.8 °C | +0.2 °C | 203 mm | -23 mm |
| May | 30.7 °C | 0.0 °C | 346 mm | +206 mm |
| Jun | 30.8 °C | -0.1 °C | 93 mm | +19 mm |
| Jul | 30.5 °C | -0.6 °C | 38 mm | -5 mm |
| Aug | 30.9 °C | -0.9 °C | 163 mm | +136 mm |
| Sep | 32.0 °C | -0.7 °C | 101 mm | +51 mm |
| Oct | 32.4 °C | -0.4 °C | 268 mm | +134 mm |
| Nov | 30.4 °C | -1.3 °C | 337 mm | +75 mm |
| Dec | 30.9 °C | +0.5 °C | 277 mm | -21 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 Jaten?
Jaten has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 26.0 °C and it receives 2,189 mm of precipitation per year.
What is the hottest day ever recorded in Jaten?
The hottest day measured in Jaten between 1940 and 2025 was 26 November 1982, reaching 39.0 °C.
What is the coldest day in Jaten?
The coldest day measured in Jaten between 1940 and 2025 was 18 August 1957, at 16.0 °C.
Does it snow in Jaten?
Almost never: Jaten sees virtually no snow, with about 0 frost days per year.
Has the climate of Jaten warmed?
Yes: Jaten warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Jaten?
The wettest day measured in Jaten between 1940 and 2025 was 29 December 2006, with 145 mm of rain in 24 hours.
What was the windiest day in Jaten?
The windiest day measured in Jaten between 1940 and 2025 was 18 January 1982, with winds reaching 26.0 km/h.
What is the warmest month in Jaten?
The warmest month in Jaten is October (27.1 °C on average); the coldest is January (25.3 °C).
How much does it rain in Jaten?
Jaten receives on average 2,189 mm of precipitation per year, spread over about 212 rainy days.
Is it sunny in Jaten?
Jaten gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Jaten?
Yes: Jaten has on average 348 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Jaten?
In Jaten, between 1940 and 2025, the highest apparent temperature reached 43.0 °C on 19 November 2018, and the lowest was 16.6 °C on 18 August 1957.
Compare Jaten with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Jaten