Plérin climate — normals and trends
Plérin (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °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 (16.9 °C on average) and the coldest is January (5.6 °C). Rainfall peaks in November.
Plérin averages 17 frost days, 1 hot days (≥ 30 °C) and 133 rainy days per year.
Plérin has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 24 to 10 per year over the period.
The hottest day of the period reached 37.1 °C (on 18 July 2022) and the coldest -12.0 °C (on 17 January 1985).
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
PlérinBrittany Region
- coords
- 48.53°, -2.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.0°C
Average daily high
14.2°C
Average daily low
8.2°C
Annual rainfall
680mm
Sunshine / day
8.6h
Mean relative humidity
82%
Average peak wind
21.5km/h
Seasonal range
11.3°C
Frost days (< 0 °C)
17 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
6.6 cm
Average feels-like high
12.0 °C
Average feels-like low
5.4 °C
Average peak gust
40.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.32 · 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
18 July 2022
Coldest day
-12.0 °C
17 January 1985
Wettest day
47 mm
29 June 1986
Windiest day
73.5 km/h
16 October 1987
Strongest gust
131.0 km/h
16 October 1987
Hottest feels-like
39.3 °C
5 August 2003
Coldest feels-like
-18.4 °C
17 January 1985
Snowiest day
16.5 cm
4 January 1979
Sunniest day
15.7 h
18 June 2000
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 8.2 °C | +0.3 °C | 155 mm | +94 mm |
| Feb | 9.5 °C | +1.0 °C | 50 mm | -5 mm |
| Mar | 11.9 °C | +1.1 °C | 45 mm | -9 mm |
| Apr | 16.2 °C | +3.4 °C | 58 mm | +3 mm |
| May | 17.7 °C | +1.9 °C | 32 mm | -33 mm |
| Jun | 22.8 °C | +4.1 °C | 38 mm | -14 mm |
| Jul | 22.2 °C | +1.5 °C | 48 mm | +3 mm |
| Aug | 23.4 °C | +2.6 °C | 46 mm | -4 mm |
| Sep | 18.9 °C | -0.1 °C | 64 mm | +14 mm |
| Oct | 16.1 °C | +0.6 °C | 46 mm | -15 mm |
| Nov | 13.1 °C | +1.8 °C | 57 mm | -10 mm |
| Dec | 9.9 °C | +1.0 °C | 69 mm | +4 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 Plérin?
Plérin has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 680 mm of precipitation per year.
What is the hottest day ever recorded in Plérin?
The hottest day measured in Plérin between 1940 and 2025 was 18 July 2022, reaching 37.1 °C.
What is the coldest day in Plérin?
The coldest day measured in Plérin between 1940 and 2025 was 17 January 1985, at -12.0 °C.
Does it snow in Plérin?
Yes. Plérin gets on average 6.6 cm of snow per year and has around 17 frost days.
Has the climate of Plérin warmed?
Yes: Plérin warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Plérin?
The wettest day measured in Plérin between 1940 and 2025 was 29 June 1986, with 47 mm of rain in 24 hours.
What was the windiest day in Plérin?
The windiest day measured in Plérin between 1940 and 2025 was 16 October 1987, with winds reaching 73.5 km/h.
What is the warmest month in Plérin?
The warmest month in Plérin is July (16.9 °C on average); the coldest is January (5.6 °C).
How much does it rain in Plérin?
Plérin receives on average 680 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Plérin?
Plérin gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Plérin?
The heaviest 24-hour snowfall measured in Plérin between 1940 and 2025 was 4 January 1979, with 16.5 cm.
Are there tropical nights in Plérin?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Plérin.
What was the most extreme apparent temperature in Plérin?
In Plérin, between 1940 and 2025, the highest apparent temperature reached 39.3 °C on 5 August 2003, and the lowest was -18.4 °C on 17 January 1985.
Compare Plérin with another city
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Nearby cities
The climate around Plérin