Rosarno climate — normals and trends
Rosarno (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 898 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 (23.9 °C on average) and the coldest is January (9.9 °C). Rainfall peaks in December.
Rosarno averages 0 frost days, 3 hot days (≥ 30 °C) and 123 rainy days per year.
Rosarno has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.1 °C (on 25 July 2023) and the coldest -0.8 °C (on 31 January 1999).
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
RosarnoCalabria
- coords
- 38.49°, 15.98°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
18.5°C
Average daily low
14.1°C
Annual rainfall
898mm
Sunshine / day
10.6h
Mean relative humidity
76%
Average peak wind
16.3km/h
Seasonal range
14.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
123 d/yr
Annual snowfall
2.3 cm
Average feels-like high
18.4 °C
Average feels-like low
13.1 °C
Average peak gust
33.7 km/h
Tropical nights (≥ 20 °C)
69 d/yr
Solar radiation
16.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.39 · 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
37.1 °C
25 July 2023
Coldest day
-0.8 °C
31 January 1999
Wettest day
105 mm
21 September 1965
Windiest day
63.8 km/h
25 February 1973
Strongest gust
127.1 km/h
25 February 1973
Hottest feels-like
39.6 °C
25 July 2025
Coldest feels-like
-7.8 °C
14 January 1968
Snowiest day
7.6 cm
6 February 2012
Sunniest day
14.0 h
20 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 | 14.1 °C | +2.3 °C | 159 mm | +35 mm |
| Feb | 13.2 °C | +1.2 °C | 59 mm | -47 mm |
| Mar | 15.2 °C | +1.9 °C | 143 mm | +48 mm |
| Apr | 16.5 °C | +0.9 °C | 45 mm | -28 mm |
| May | 20.2 °C | +1.0 °C | 73 mm | +30 mm |
| Jun | 26.3 °C | +3.1 °C | 2 mm | -21 mm |
| Jul | 28.3 °C | +2.4 °C | 12 mm | -3 mm |
| Aug | 27.1 °C | +0.6 °C | 12 mm | -9 mm |
| Sep | 25.4 °C | +1.5 °C | 70 mm | +11 mm |
| Oct | 20.0 °C | -0.4 °C | 98 mm | -1 mm |
| Nov | 17.4 °C | +0.9 °C | 130 mm | +16 mm |
| Dec | 14.9 °C | +1.6 °C | 48 mm | -80 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 Rosarno?
Rosarno has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 898 mm of precipitation per year.
What is the hottest day ever recorded in Rosarno?
The hottest day measured in Rosarno between 1940 and 2025 was 25 July 2023, reaching 37.1 °C.
What is the coldest day in Rosarno?
The coldest day measured in Rosarno between 1940 and 2025 was 31 January 1999, at -0.8 °C.
Does it snow in Rosarno?
Yes. Rosarno gets on average 2.3 cm of snow per year and has around 0 frost days.
Has the climate of Rosarno warmed?
Yes: Rosarno warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rosarno?
The wettest day measured in Rosarno between 1940 and 2025 was 21 September 1965, with 105 mm of rain in 24 hours.
What was the windiest day in Rosarno?
The windiest day measured in Rosarno between 1940 and 2025 was 25 February 1973, with winds reaching 63.8 km/h.
What is the warmest month in Rosarno?
The warmest month in Rosarno is August (23.9 °C on average); the coldest is January (9.9 °C).
How much does it rain in Rosarno?
Rosarno receives on average 898 mm of precipitation per year, spread over about 123 rainy days.
Is it sunny in Rosarno?
Rosarno gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Rosarno?
The heaviest 24-hour snowfall measured in Rosarno between 1940 and 2025 was 6 February 2012, with 7.6 cm.
Are there tropical nights in Rosarno?
Yes: Rosarno has on average 69 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rosarno?
In Rosarno, between 1940 and 2025, the highest apparent temperature reached 39.6 °C on 25 July 2025, and the lowest was -7.8 °C on 14 January 1968.
Compare Rosarno with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rosarno