Ancona climate — normals and trends
Ancona (Italy) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.3 °C and it receives 680 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 (24.8 °C on average) and the coldest is January (6.9 °C). Rainfall peaks in November.
Ancona averages 5 frost days, 23 hot days (≥ 30 °C) and 102 rainy days per year.
Ancona has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 10 to 0 per year over the period.
The hottest day of the period reached 37.0 °C (on 4 August 2017) and the coldest -9.4 °C (on 20 January 1940).
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
AnconaThe Marches
- coords
- 43.61°, 13.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.3°C
Average daily high
18.6°C
Average daily low
12.2°C
Annual rainfall
680mm
Sunshine / day
9.8h
Mean relative humidity
73%
Average peak wind
16.9km/h
Seasonal range
17.9°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
23 d/yr
Rainy days (≥ 1 mm)
102 d/yr
Annual snowfall
9.5 cm
Average feels-like high
18.0 °C
Average feels-like low
10.7 °C
Average peak gust
31.3 km/h
Tropical nights (≥ 20 °C)
55 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °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
37.0 °C
4 August 2017
Coldest day
-9.4 °C
20 January 1940
Wettest day
74 mm
1 September 2014
Windiest day
58.3 km/h
28 March 1995
Strongest gust
106.6 km/h
28 March 1995
Hottest feels-like
40.5 °C
6 August 2017
Coldest feels-like
-15.6 °C
15 February 1940
Snowiest day
21.6 cm
12 March 1956
Sunniest day
14.4 h
30 June 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 | 11.8 °C | +2.1 °C | 24 mm | -33 mm |
| Feb | 11.4 °C | +0.8 °C | 44 mm | -11 mm |
| Mar | 14.6 °C | +1.5 °C | 98 mm | +33 mm |
| Apr | 17.9 °C | +1.5 °C | 43 mm | -16 mm |
| May | 22.0 °C | +0.9 °C | 79 mm | +23 mm |
| Jun | 30.0 °C | +4.4 °C | 17 mm | -27 mm |
| Jul | 30.0 °C | +1.5 °C | 66 mm | +36 mm |
| Aug | 29.3 °C | +0.9 °C | 26 mm | -19 mm |
| Sep | 26.1 °C | +1.6 °C | 58 mm | -4 mm |
| Oct | 20.0 °C | +0.4 °C | 41 mm | -23 mm |
| Nov | 15.4 °C | +0.7 °C | 94 mm | +21 mm |
| Dec | 12.1 °C | +1.1 °C | 41 mm | -28 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 Ancona?
Ancona has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.3 °C and it receives 680 mm of precipitation per year.
What is the hottest day ever recorded in Ancona?
The hottest day measured in Ancona between 1940 and 2025 was 4 August 2017, reaching 37.0 °C.
What is the coldest day in Ancona?
The coldest day measured in Ancona between 1940 and 2025 was 20 January 1940, at -9.4 °C.
Does it snow in Ancona?
Yes. Ancona gets on average 9.5 cm of snow per year and has around 5 frost days.
Has the climate of Ancona warmed?
Yes: Ancona warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ancona?
The wettest day measured in Ancona between 1940 and 2025 was 1 September 2014, with 74 mm of rain in 24 hours.
What was the windiest day in Ancona?
The windiest day measured in Ancona between 1940 and 2025 was 28 March 1995, with winds reaching 58.3 km/h.
What is the warmest month in Ancona?
The warmest month in Ancona is July (24.8 °C on average); the coldest is January (6.9 °C).
How much does it rain in Ancona?
Ancona receives on average 680 mm of precipitation per year, spread over about 102 rainy days.
Is it sunny in Ancona?
Ancona 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 Ancona?
The heaviest 24-hour snowfall measured in Ancona between 1940 and 2025 was 12 March 1956, with 21.6 cm.
Are there tropical nights in Ancona?
Yes: Ancona has on average 55 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ancona?
In Ancona, between 1940 and 2025, the highest apparent temperature reached 40.5 °C on 6 August 2017, and the lowest was -15.6 °C on 15 February 1940.
Compare Ancona with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ancona