Grogol climate — normals and trends
Grogol (Indonesia) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 2,046 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 (25.8 °C on average) and the coldest is January (24.6 °C). Rainfall peaks in February.
Grogol averages 0 frost days, 190 hot days (≥ 30 °C) and 220 rainy days per year.
Grogol has warmed by +1.7 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.5 °C (on 26 November 1982) and the coldest 15.6 °C (on 19 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
GrogolCentral Java
- coords
- -7.60°, 110.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
30.0°C
Average daily low
21.5°C
Annual rainfall
2,046mm
Sunshine / day
9.9h
Mean relative humidity
81%
Average peak wind
10.1km/h
Seasonal range
1.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
190 d/yr
Rainy days (≥ 1 mm)
220 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.7 °C
Average feels-like low
25.0 °C
Average peak gust
27.6 km/h
Tropical nights (≥ 20 °C)
327 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.69 · 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
37.5 °C
26 November 1982
Coldest day
15.6 °C
19 August 1957
Wettest day
178 mm
28 July 1998
Windiest day
24.9 km/h
14 January 1950
Strongest gust
66.6 km/h
26 January 2012
Hottest feels-like
42.2 °C
21 February 2024
Coldest feels-like
15.6 °C
12 September 1949
Sunniest day
12.4 h
22 December 2023
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 | 29.9 °C | +0.8 °C | 350 mm | +25 mm |
| Feb | 30.4 °C | +1.3 °C | 367 mm | +34 mm |
| Mar | 30.2 °C | +0.7 °C | 380 mm | +80 mm |
| Apr | 29.8 °C | 0.0 °C | 189 mm | 0 mm |
| May | 29.9 °C | +0.1 °C | 319 mm | +201 mm |
| Jun | 29.9 °C | 0.0 °C | 67 mm | +4 mm |
| Jul | 29.6 °C | -0.4 °C | 22 mm | -17 mm |
| Aug | 29.8 °C | -0.7 °C | 125 mm | +98 mm |
| Sep | 31.2 °C | 0.0 °C | 72 mm | +24 mm |
| Oct | 31.6 °C | +0.2 °C | 247 mm | +130 mm |
| Nov | 29.4 °C | -1.1 °C | 439 mm | +220 mm |
| Dec | 30.0 °C | +0.5 °C | 288 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 Grogol?
Grogol has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 2,046 mm of precipitation per year.
What is the hottest day ever recorded in Grogol?
The hottest day measured in Grogol between 1940 and 2025 was 26 November 1982, reaching 37.5 °C.
What is the coldest day in Grogol?
The coldest day measured in Grogol between 1940 and 2025 was 19 August 1957, at 15.6 °C.
Does it snow in Grogol?
Almost never: Grogol sees virtually no snow, with about 0 frost days per year.
Has the climate of Grogol warmed?
Yes: Grogol warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grogol?
The wettest day measured in Grogol between 1940 and 2025 was 28 July 1998, with 178 mm of rain in 24 hours.
What was the windiest day in Grogol?
The windiest day measured in Grogol between 1940 and 2025 was 14 January 1950, with winds reaching 24.9 km/h.
What is the warmest month in Grogol?
The warmest month in Grogol is October (25.8 °C on average); the coldest is January (24.6 °C).
How much does it rain in Grogol?
Grogol receives on average 2,046 mm of precipitation per year, spread over about 220 rainy days.
Is it sunny in Grogol?
Grogol gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Grogol?
Yes: Grogol has on average 327 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Grogol?
In Grogol, between 1940 and 2025, the highest apparent temperature reached 42.2 °C on 21 February 2024, and the lowest was 15.6 °C on 12 September 1949.
Compare Grogol with another city
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Nearby cities
The climate around Grogol