Volterra climate — normals and trends
Volterra (Italy) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 14.2 °C and it receives 909 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 July (23.5 °C on average) and the coldest is January (5.5 °C). Rainfall peaks in October.
Volterra averages 20 frost days, 19 hot days (≥ 30 °C) and 113 rainy days per year.
Volterra has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 33 to 7 per year over the period.
The hottest day of the period reached 36.8 °C (on 11 August 2025) and the coldest -18.0 °C (on 15 February 1956).
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
VolterraTuscany
- coords
- 43.40°, 10.86°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.2°C
Average daily high
18.2°C
Average daily low
10.4°C
Annual rainfall
909mm
Sunshine / day
9.8h
Mean relative humidity
76%
Average peak wind
13.4km/h
Seasonal range
18.0°C
Frost days (< 0 °C)
20 d/yr
Hot days (≥ 30 °C)
19 d/yr
Rainy days (≥ 1 mm)
113 d/yr
Annual snowfall
7.8 cm
Average feels-like high
17.7 °C
Average feels-like low
9.3 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
22 d/yr
Solar radiation
14.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.52 · 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
36.8 °C
11 August 2025
Coldest day
-18.0 °C
15 February 1956
Wettest day
108 mm
24 August 1983
Windiest day
42.6 km/h
27 February 1990
Strongest gust
110.5 km/h
5 March 2015
Hottest feels-like
42.4 °C
11 August 2024
Coldest feels-like
-22.8 °C
15 February 1956
Snowiest day
17.2 cm
1 February 2012
Sunniest day
14.9 h
3 July 2025
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 | 11.0 °C | +2.0 °C | 80 mm | +11 mm |
| Feb | 11.7 °C | +1.3 °C | 129 mm | +53 mm |
| Mar | 14.5 °C | +1.2 °C | 145 mm | +68 mm |
| Apr | 18.0 °C | +1.5 °C | 113 mm | +30 mm |
| May | 21.4 °C | +0.6 °C | 78 mm | +5 mm |
| Jun | 30.0 °C | +5.0 °C | 6 mm | -45 mm |
| Jul | 29.3 °C | +1.1 °C | 66 mm | +38 mm |
| Aug | 30.2 °C | +2.0 °C | 99 mm | +50 mm |
| Sep | 24.6 °C | +0.1 °C | 114 mm | +24 mm |
| Oct | 19.8 °C | +0.5 °C | 73 mm | -41 mm |
| Nov | 15.2 °C | +1.4 °C | 96 mm | -17 mm |
| Dec | 12.2 °C | +2.3 °C | 97 mm | +9 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 Volterra?
Volterra has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 14.2 °C and it receives 909 mm of precipitation per year.
What is the hottest day ever recorded in Volterra?
The hottest day measured in Volterra between 1940 and 2025 was 11 August 2025, reaching 36.8 °C.
What is the coldest day in Volterra?
The coldest day measured in Volterra between 1940 and 2025 was 15 February 1956, at -18.0 °C.
Does it snow in Volterra?
Yes. Volterra gets on average 7.8 cm of snow per year and has around 20 frost days.
Has the climate of Volterra warmed?
Yes: Volterra warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Volterra?
The wettest day measured in Volterra between 1940 and 2025 was 24 August 1983, with 108 mm of rain in 24 hours.
What was the windiest day in Volterra?
The windiest day measured in Volterra between 1940 and 2025 was 27 February 1990, with winds reaching 42.6 km/h.
What is the warmest month in Volterra?
The warmest month in Volterra is July (23.5 °C on average); the coldest is January (5.5 °C).
How much does it rain in Volterra?
Volterra receives on average 909 mm of precipitation per year, spread over about 113 rainy days.
Is it sunny in Volterra?
Volterra gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
What is the biggest single-day snowfall in Volterra?
The heaviest 24-hour snowfall measured in Volterra between 1940 and 2025 was 1 February 2012, with 17.2 cm.
Are there tropical nights in Volterra?
Yes: Volterra has on average 22 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Volterra?
In Volterra, between 1940 and 2025, the highest apparent temperature reached 42.4 °C on 11 August 2024, and the lowest was -22.8 °C on 15 February 1956.
Compare Volterra with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Volterra