Comal climate — normals and trends
Comal (Indonesia) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.1 °C and it receives 2,944 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 May (25.6 °C on average) and the coldest is January (24.7 °C). Rainfall peaks in December.
Comal averages 0 frost days, 30 hot days (≥ 30 °C) and 271 rainy days per year.
Comal has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.7 °C (on 30 September 1972) and the coldest 17.8 °C (on 31 March 1943).
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
ComalCentral Java
- coords
- -6.91°, 109.53°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.1°C
Average daily high
28.4°C
Average daily low
22.7°C
Annual rainfall
2,944mm
Sunshine / day
10.2h
Mean relative humidity
84%
Average peak wind
7.9km/h
Seasonal range
0.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
30 d/yr
Rainy days (≥ 1 mm)
271 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.0 °C
Average feels-like low
26.7 °C
Average peak gust
23.8 km/h
Tropical nights (≥ 20 °C)
360 d/yr
Solar radiation
18.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.81 · 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
32.7 °C
30 September 1972
Coldest day
17.8 °C
31 March 1943
Wettest day
247 mm
6 April 2020
Windiest day
22.3 km/h
19 January 1986
Strongest gust
64.1 km/h
11 February 2001
Hottest feels-like
40.3 °C
20 April 1956
Coldest feels-like
18.7 °C
9 August 1961
Sunniest day
12.4 h
13 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 | 28.7 °C | +1.1 °C | 507 mm | +107 mm |
| Feb | 29.0 °C | +1.3 °C | 292 mm | -85 mm |
| Mar | 29.0 °C | +0.7 °C | 392 mm | +16 mm |
| Apr | 28.9 °C | +0.2 °C | 280 mm | -8 mm |
| May | 29.3 °C | +0.5 °C | 395 mm | +212 mm |
| Jun | 28.8 °C | +0.4 °C | 210 mm | +98 mm |
| Jul | 28.3 °C | +0.2 °C | 79 mm | -2 mm |
| Aug | 28.2 °C | -0.2 °C | 311 mm | +237 mm |
| Sep | 28.7 °C | -0.1 °C | 249 mm | +150 mm |
| Oct | 29.3 °C | +0.3 °C | 462 mm | +257 mm |
| Nov | 29.2 °C | +0.6 °C | 388 mm | +55 mm |
| Dec | 29.4 °C | +1.2 °C | 389 mm | -27 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 Comal?
Comal has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 2,944 mm of precipitation per year.
What is the hottest day ever recorded in Comal?
The hottest day measured in Comal between 1940 and 2025 was 30 September 1972, reaching 32.7 °C.
What is the coldest day in Comal?
The coldest day measured in Comal between 1940 and 2025 was 31 March 1943, at 17.8 °C.
Does it snow in Comal?
Almost never: Comal sees virtually no snow, with about 0 frost days per year.
Has the climate of Comal warmed?
Yes: Comal warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Comal?
The wettest day measured in Comal between 1940 and 2025 was 6 April 2020, with 247 mm of rain in 24 hours.
What was the windiest day in Comal?
The windiest day measured in Comal between 1940 and 2025 was 19 January 1986, with winds reaching 22.3 km/h.
What is the warmest month in Comal?
The warmest month in Comal is May (25.6 °C on average); the coldest is January (24.7 °C).
How much does it rain in Comal?
Comal receives on average 2,944 mm of precipitation per year, spread over about 271 rainy days.
Is it sunny in Comal?
Comal gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Comal?
Yes: Comal has on average 360 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Comal?
In Comal, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 20 April 1956, and the lowest was 18.7 °C on 9 August 1961.
Compare Comal with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Comal