Crozon climate — normals and trends
Crozon (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 12.1 °C and it receives 1,089 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 (16.5 °C on average) and the coldest is February (8.0 °C). Rainfall peaks in December.
Crozon averages 1 frost days, 0 hot days (≥ 30 °C) and 158 rainy days per year.
Crozon has warmed by +1.0 °C between 1940 and 2025, or +0.11 °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 27.5 °C (on 12 July 1983) and the coldest -5.3 °C (on 13 January 1987).
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
CrozonBrittany Region
- coords
- 48.25°, -4.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.1°C
Average daily high
13.2°C
Average daily low
11.1°C
Annual rainfall
1,089mm
Sunshine / day
9.0h
Mean relative humidity
82%
Average peak wind
30.6km/h
Seasonal range
8.5°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
158 d/yr
Annual snowfall
1.6 cm
Average feels-like high
10.6 °C
Average feels-like low
7.1 °C
Average peak gust
42.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.29 · 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
27.5 °C
12 July 1983
Coldest day
-5.3 °C
13 January 1987
Wettest day
56 mm
16 November 1972
Windiest day
96.5 km/h
2 November 2023
Strongest gust
137.5 km/h
2 November 2023
Hottest feels-like
29.8 °C
12 July 1983
Coldest feels-like
-14.4 °C
12 January 1987
Snowiest day
10.2 cm
22 February 1986
Sunniest day
15.3 h
15 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 | 10.1 °C | +0.5 °C | 212 mm | +78 mm |
| Feb | 9.8 °C | +0.6 °C | 83 mm | -23 mm |
| Mar | 10.9 °C | +0.9 °C | 27 mm | -63 mm |
| Apr | 13.7 °C | +2.5 °C | 86 mm | +16 mm |
| May | 15.1 °C | +1.7 °C | 52 mm | -14 mm |
| Jun | 17.7 °C | +2.1 °C | 47 mm | -2 mm |
| Jul | 18.4 °C | +1.3 °C | 43 mm | -5 mm |
| Aug | 19.0 °C | +1.6 °C | 35 mm | -22 mm |
| Sep | 16.7 °C | +0.1 °C | 82 mm | +11 mm |
| Oct | 15.7 °C | +0.9 °C | 125 mm | +17 mm |
| Nov | 13.6 °C | +1.3 °C | 139 mm | -1 mm |
| Dec | 11.1 °C | +0.5 °C | 207 mm | +57 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 Crozon?
Crozon has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 12.1 °C and it receives 1,089 mm of precipitation per year.
What is the hottest day ever recorded in Crozon?
The hottest day measured in Crozon between 1940 and 2025 was 12 July 1983, reaching 27.5 °C.
What is the coldest day in Crozon?
The coldest day measured in Crozon between 1940 and 2025 was 13 January 1987, at -5.3 °C.
Does it snow in Crozon?
Yes. Crozon gets on average 1.6 cm of snow per year and has around 1 frost days.
Has the climate of Crozon warmed?
Yes: Crozon warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Crozon?
The wettest day measured in Crozon between 1940 and 2025 was 16 November 1972, with 56 mm of rain in 24 hours.
What was the windiest day in Crozon?
The windiest day measured in Crozon between 1940 and 2025 was 2 November 2023, with winds reaching 96.5 km/h.
What is the warmest month in Crozon?
The warmest month in Crozon is August (16.5 °C on average); the coldest is February (8.0 °C).
How much does it rain in Crozon?
Crozon receives on average 1,089 mm of precipitation per year, spread over about 158 rainy days.
Is it sunny in Crozon?
Crozon 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 Crozon?
The heaviest 24-hour snowfall measured in Crozon between 1940 and 2025 was 22 February 1986, with 10.2 cm.
Are there tropical nights in Crozon?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Crozon.
What was the most extreme apparent temperature in Crozon?
In Crozon, between 1940 and 2025, the highest apparent temperature reached 29.8 °C on 12 July 1983, and the lowest was -14.4 °C on 12 January 1987.
Compare Crozon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Crozon