Arona climate — normals and trends
Arona (Italy) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.6 °C and it receives 1,694 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 (21.5 °C on average) and the coldest is January (2.0 °C). Rainfall peaks in October.
Arona averages 52 frost days, 6 hot days (≥ 30 °C) and 143 rainy days per year.
Arona has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.
The number of frost days there went from about 82 to 22 per year over the period.
The hottest day of the period reached 36.0 °C (on 11 August 2003) and the coldest -16.3 °C (on 9 January 1945).
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
AronaPiedmont
- coords
- 45.76°, 8.56°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.6°C
Average daily high
15.5°C
Average daily low
8.0°C
Annual rainfall
1,694mm
Sunshine / day
9.0h
Mean relative humidity
73%
Average peak wind
7.4km/h
Seasonal range
19.5°C
Frost days (< 0 °C)
52 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
52.0 cm
Average feels-like high
14.8 °C
Average feels-like low
6.4 °C
Average peak gust
21.5 km/h
Tropical nights (≥ 20 °C)
8 d/yr
Solar radiation
13.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.9 °C
since 1940
+0.3 °C per decade · r² = 0.73 · 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
36.0 °C
11 August 2003
Coldest day
-16.3 °C
9 January 1945
Wettest day
146 mm
2 November 1968
Windiest day
33.0 km/h
12 March 2006
Strongest gust
86.4 km/h
26 September 1956
Hottest feels-like
40.0 °C
27 June 2019
Coldest feels-like
-21.1 °C
9 January 1945
Snowiest day
33.2 cm
28 January 1978
Sunniest day
15.0 h
2 June 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 | 7.3 °C | +1.8 °C | 115 mm | +45 mm |
| Feb | 8.5 °C | +1.2 °C | 66 mm | -16 mm |
| Mar | 13.2 °C | +1.7 °C | 150 mm | +33 mm |
| Apr | 17.5 °C | +2.1 °C | 289 mm | +123 mm |
| May | 20.5 °C | +1.0 °C | 246 mm | +50 mm |
| Jun | 27.6 °C | +4.3 °C | 151 mm | -17 mm |
| Jul | 26.7 °C | +0.9 °C | 177 mm | +50 mm |
| Aug | 26.8 °C | +1.7 °C | 279 mm | +130 mm |
| Sep | 21.5 °C | +0.4 °C | 220 mm | +51 mm |
| Oct | 16.5 °C | +0.9 °C | 69 mm | -136 mm |
| Nov | 11.4 °C | +1.4 °C | 73 mm | -92 mm |
| Dec | 9.2 °C | +2.8 °C | 70 mm | -10 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 Arona?
Arona has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.6 °C and it receives 1,694 mm of precipitation per year.
What is the hottest day ever recorded in Arona?
The hottest day measured in Arona between 1940 and 2025 was 11 August 2003, reaching 36.0 °C.
What is the coldest day in Arona?
The coldest day measured in Arona between 1940 and 2025 was 9 January 1945, at -16.3 °C.
Does it snow in Arona?
Yes. Arona gets on average 52.0 cm of snow per year and has around 52 frost days.
Has the climate of Arona warmed?
Yes: Arona warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Arona?
The wettest day measured in Arona between 1940 and 2025 was 2 November 1968, with 146 mm of rain in 24 hours.
What was the windiest day in Arona?
The windiest day measured in Arona between 1940 and 2025 was 12 March 2006, with winds reaching 33.0 km/h.
What is the warmest month in Arona?
The warmest month in Arona is July (21.5 °C on average); the coldest is January (2.0 °C).
How much does it rain in Arona?
Arona receives on average 1,694 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Arona?
Arona gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Arona?
The heaviest 24-hour snowfall measured in Arona between 1940 and 2025 was 28 January 1978, with 33.2 cm.
Are there tropical nights in Arona?
Yes: Arona has on average 8 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Arona?
In Arona, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 27 June 2019, and the lowest was -21.1 °C on 9 January 1945.
Compare Arona with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Arona