Comiso climate — normals and trends
Comiso (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.9 °C and it receives 453 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 August (24.8 °C on average) and the coldest is January (10.3 °C). Rainfall peaks in December.
Comiso averages 0 frost days, 8 hot days (≥ 30 °C) and 72 rainy days per year.
Comiso 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 35.7 °C (on 7 July 1988) and the coldest -0.3 °C (on 30 December 1941).
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
ComisoSicily
- coords
- 36.95°, 14.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.9°C
Average daily high
19.6°C
Average daily low
14.3°C
Annual rainfall
453mm
Sunshine / day
10.8h
Mean relative humidity
75%
Average peak wind
19.4km/h
Seasonal range
14.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
72 d/yr
Annual snowfall
0.2 cm
Average feels-like high
19.2 °C
Average feels-like low
13.3 °C
Average peak gust
34.7 km/h
Tropical nights (≥ 20 °C)
75 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.48 · 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
35.7 °C
7 July 1988
Coldest day
-0.3 °C
30 December 1941
Wettest day
85 mm
21 September 1988
Windiest day
57.2 km/h
10 February 2023
Strongest gust
105.1 km/h
16 January 1981
Hottest feels-like
39.5 °C
25 July 2025
Coldest feels-like
-6.3 °C
19 January 1940
Snowiest day
3.2 cm
27 February 2011
Sunniest day
14.0 h
19 May 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 | 14.8 °C | +2.1 °C | 90 mm | +22 mm |
| Feb | 14.1 °C | +1.1 °C | 92 mm | +42 mm |
| Mar | 16.3 °C | +1.9 °C | 75 mm | +30 mm |
| Apr | 17.6 °C | +0.8 °C | 33 mm | +1 mm |
| May | 22.2 °C | +1.6 °C | 54 mm | +36 mm |
| Jun | 27.6 °C | +2.9 °C | 9 mm | +1 mm |
| Jul | 29.7 °C | +2.4 °C | 1 mm | -2 mm |
| Aug | 28.5 °C | +0.8 °C | 7 mm | -2 mm |
| Sep | 26.9 °C | +1.8 °C | 26 mm | -4 mm |
| Oct | 21.8 °C | +0.3 °C | 45 mm | -14 mm |
| Nov | 18.1 °C | +0.6 °C | 33 mm | -30 mm |
| Dec | 15.5 °C | +1.4 °C | 80 mm | +11 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 Comiso?
Comiso has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.9 °C and it receives 453 mm of precipitation per year.
What is the hottest day ever recorded in Comiso?
The hottest day measured in Comiso between 1940 and 2025 was 7 July 1988, reaching 35.7 °C.
What is the coldest day in Comiso?
The coldest day measured in Comiso between 1940 and 2025 was 30 December 1941, at -0.3 °C.
Does it snow in Comiso?
Almost never: Comiso sees virtually no snow, with about 0 frost days per year.
Has the climate of Comiso warmed?
Yes: Comiso warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Comiso?
The wettest day measured in Comiso between 1940 and 2025 was 21 September 1988, with 85 mm of rain in 24 hours.
What was the windiest day in Comiso?
The windiest day measured in Comiso between 1940 and 2025 was 10 February 2023, with winds reaching 57.2 km/h.
What is the warmest month in Comiso?
The warmest month in Comiso is August (24.8 °C on average); the coldest is January (10.3 °C).
How much does it rain in Comiso?
Comiso receives on average 453 mm of precipitation per year, spread over about 72 rainy days.
Is it sunny in Comiso?
Comiso gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
What is the biggest single-day snowfall in Comiso?
The heaviest 24-hour snowfall measured in Comiso between 1940 and 2025 was 27 February 2011, with 3.2 cm.
Are there tropical nights in Comiso?
Yes: Comiso has on average 75 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Comiso?
In Comiso, between 1940 and 2025, the highest apparent temperature reached 39.5 °C on 25 July 2025, and the lowest was -6.3 °C on 19 January 1940.
Compare Comiso with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Comiso