Cagliari climate — normals and trends
Cagliari (Italy) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 16.6 °C and it receives 441 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 (25.0 °C on average) and the coldest is January (9.7 °C). Rainfall peaks in November.
Cagliari averages 0 frost days, 29 hot days (≥ 30 °C) and 75 rainy days per year.
Cagliari has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.0 °C (on 19 July 2023) and the coldest -1.0 °C (on 24 January 1942).
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
CagliariSardinia
- coords
- 39.23°, 9.12°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.6°C
Average daily high
20.3°C
Average daily low
13.2°C
Annual rainfall
441mm
Sunshine / day
10.7h
Mean relative humidity
74%
Average peak wind
19.2km/h
Seasonal range
15.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
29 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
0.2 cm
Average feels-like high
19.4 °C
Average feels-like low
12.2 °C
Average peak gust
36.8 km/h
Tropical nights (≥ 20 °C)
50 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.51 · 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
40.0 °C
19 July 2023
Coldest day
-1.0 °C
24 January 1942
Wettest day
68 mm
16 October 1951
Windiest day
58.1 km/h
25 February 1973
Strongest gust
107.3 km/h
2 December 1976
Hottest feels-like
42.5 °C
11 August 2021
Coldest feels-like
-6.4 °C
19 January 1940
Snowiest day
4.2 cm
9 December 1945
Sunniest day
14.7 h
1 July 2011
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 | 14.9 °C | +2.1 °C | 56 mm | +12 mm |
| Feb | 15.0 °C | +1.7 °C | 70 mm | +21 mm |
| Mar | 16.5 °C | +1.3 °C | 78 mm | +26 mm |
| Apr | 18.5 °C | +1.0 °C | 79 mm | +32 mm |
| May | 23.2 °C | +1.7 °C | 19 mm | -15 mm |
| Jun | 30.2 °C | +4.3 °C | 1 mm | -12 mm |
| Jul | 31.1 °C | +1.9 °C | 2 mm | -2 mm |
| Aug | 30.8 °C | +1.4 °C | 6 mm | -2 mm |
| Sep | 27.8 °C | +1.7 °C | 18 mm | -12 mm |
| Oct | 22.9 °C | +1.0 °C | 37 mm | -10 mm |
| Nov | 17.8 °C | +0.6 °C | 38 mm | -19 mm |
| Dec | 15.5 °C | +1.6 °C | 78 mm | +23 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 Cagliari?
Cagliari has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 16.6 °C and it receives 441 mm of precipitation per year.
What is the hottest day ever recorded in Cagliari?
The hottest day measured in Cagliari between 1940 and 2025 was 19 July 2023, reaching 40.0 °C.
What is the coldest day in Cagliari?
The coldest day measured in Cagliari between 1940 and 2025 was 24 January 1942, at -1.0 °C.
Does it snow in Cagliari?
Almost never: Cagliari sees virtually no snow, with about 0 frost days per year.
Has the climate of Cagliari warmed?
Yes: Cagliari warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cagliari?
The wettest day measured in Cagliari between 1940 and 2025 was 16 October 1951, with 68 mm of rain in 24 hours.
What was the windiest day in Cagliari?
The windiest day measured in Cagliari between 1940 and 2025 was 25 February 1973, with winds reaching 58.1 km/h.
What is the warmest month in Cagliari?
The warmest month in Cagliari is August (25.0 °C on average); the coldest is January (9.7 °C).
How much does it rain in Cagliari?
Cagliari receives on average 441 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Cagliari?
Cagliari gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
What is the biggest single-day snowfall in Cagliari?
The heaviest 24-hour snowfall measured in Cagliari between 1940 and 2025 was 9 December 1945, with 4.2 cm.
Are there tropical nights in Cagliari?
Yes: Cagliari has on average 50 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cagliari?
In Cagliari, between 1940 and 2025, the highest apparent temperature reached 42.5 °C on 11 August 2021, and the lowest was -6.4 °C on 19 January 1940.
Compare Cagliari with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cagliari