Partanna climate — normals and trends
Partanna (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.7 °C and it receives 589 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 (25.5 °C on average) and the coldest is January (9.4 °C). Rainfall peaks in November.
Partanna averages 1 frost days, 40 hot days (≥ 30 °C) and 92 rainy days per year.
Partanna has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 0 per year over the period.
The hottest day of the period reached 40.0 °C (on 11 August 2021) and the coldest -3.6 °C (on 9 January 1966).
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
PartannaSicily
- coords
- 37.73°, 12.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.7°C
Average daily high
20.7°C
Average daily low
13.0°C
Annual rainfall
589mm
Sunshine / day
10.8h
Mean relative humidity
72%
Average peak wind
17.3km/h
Seasonal range
16.1°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
92 d/yr
Annual snowfall
0.3 cm
Average feels-like high
20.0 °C
Average feels-like low
11.9 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
53 d/yr
Solar radiation
17.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.60 · 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
11 August 2021
Coldest day
-3.6 °C
9 January 1966
Wettest day
100 mm
5 September 1948
Windiest day
53.5 km/h
1 March 1986
Strongest gust
119.2 km/h
21 January 1981
Hottest feels-like
42.0 °C
9 August 1999
Coldest feels-like
-7.3 °C
9 January 1966
Snowiest day
3.5 cm
10 January 1945
Sunniest day
14.0 h
18 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 | 14.5 °C | +1.8 °C | 89 mm | +17 mm |
| Feb | 14.1 °C | +0.9 °C | 87 mm | +19 mm |
| Mar | 16.6 °C | +1.6 °C | 77 mm | +13 mm |
| Apr | 18.7 °C | +0.9 °C | 36 mm | -20 mm |
| May | 23.2 °C | +0.9 °C | 59 mm | +24 mm |
| Jun | 30.2 °C | +3.3 °C | 18 mm | +6 mm |
| Jul | 31.4 °C | +1.4 °C | 4 mm | -0 mm |
| Aug | 30.5 °C | +0.4 °C | 11 mm | -1 mm |
| Sep | 28.2 °C | +1.6 °C | 41 mm | -3 mm |
| Oct | 21.8 °C | -0.4 °C | 73 mm | -1 mm |
| Nov | 17.4 °C | -0.1 °C | 62 mm | -14 mm |
| Dec | 15.4 °C | +1.4 °C | 60 mm | -15 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 Partanna?
Partanna has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.7 °C and it receives 589 mm of precipitation per year.
What is the hottest day ever recorded in Partanna?
The hottest day measured in Partanna between 1940 and 2025 was 11 August 2021, reaching 40.0 °C.
What is the coldest day in Partanna?
The coldest day measured in Partanna between 1940 and 2025 was 9 January 1966, at -3.6 °C.
Does it snow in Partanna?
Almost never: Partanna sees virtually no snow, with about 1 frost days per year.
Has the climate of Partanna warmed?
Yes: Partanna warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Partanna?
The wettest day measured in Partanna between 1940 and 2025 was 5 September 1948, with 100 mm of rain in 24 hours.
What was the windiest day in Partanna?
The windiest day measured in Partanna between 1940 and 2025 was 1 March 1986, with winds reaching 53.5 km/h.
What is the warmest month in Partanna?
The warmest month in Partanna is August (25.5 °C on average); the coldest is January (9.4 °C).
How much does it rain in Partanna?
Partanna receives on average 589 mm of precipitation per year, spread over about 92 rainy days.
Is it sunny in Partanna?
Partanna 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 Partanna?
The heaviest 24-hour snowfall measured in Partanna between 1940 and 2025 was 10 January 1945, with 3.5 cm.
Are there tropical nights in Partanna?
Yes: Partanna has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Partanna?
In Partanna, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 9 August 1999, and the lowest was -7.3 °C on 9 January 1966.
Compare Partanna with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Partanna