Plouay climate — normals and trends
Plouay (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.1 °C and it receives 746 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 (17.4 °C on average) and the coldest is January (5.5 °C). Rainfall peaks in December.
Plouay averages 26 frost days, 1 hot days (≥ 30 °C) and 129 rainy days per year.
Plouay 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 33 to 19 per year over the period.
The hottest day of the period reached 39.1 °C (on 18 July 2022) and the coldest -14.5 °C (on 16 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
PlouayBrittany Region
- coords
- 47.91°, -3.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.1°C
Average daily high
14.6°C
Average daily low
7.8°C
Annual rainfall
746mm
Sunshine / day
8.6h
Mean relative humidity
82%
Average peak wind
20.4km/h
Seasonal range
11.9°C
Frost days (< 0 °C)
26 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
129 d/yr
Annual snowfall
4.1 cm
Average feels-like high
12.4 °C
Average feels-like low
5.1 °C
Average peak gust
40.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.29 · 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
39.1 °C
18 July 2022
Coldest day
-14.5 °C
16 January 1985
Wettest day
48 mm
21 August 1944
Windiest day
71.7 km/h
16 October 1987
Strongest gust
136.1 km/h
16 October 1987
Hottest feels-like
39.1 °C
9 August 2003
Coldest feels-like
-18.8 °C
16 January 1985
Snowiest day
9.8 cm
6 April 1975
Sunniest day
15.5 h
16 June 1949
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 | 8.5 °C | +0.5 °C | 183 mm | +106 mm |
| Feb | 9.6 °C | +0.9 °C | 49 mm | -17 mm |
| Mar | 12.8 °C | +1.7 °C | 42 mm | -20 mm |
| Apr | 17.1 °C | +3.6 °C | 68 mm | +9 mm |
| May | 18.6 °C | +2.1 °C | 64 mm | -2 mm |
| Jun | 23.5 °C | +3.9 °C | 32 mm | -17 mm |
| Jul | 23.9 °C | +2.3 °C | 42 mm | +2 mm |
| Aug | 24.6 °C | +3.1 °C | 45 mm | -1 mm |
| Sep | 18.6 °C | -0.7 °C | 46 mm | -6 mm |
| Oct | 16.7 °C | +1.1 °C | 57 mm | -13 mm |
| Nov | 13.2 °C | +1.9 °C | 88 mm | +12 mm |
| Dec | 9.9 °C | +1.0 °C | 106 mm | +24 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 Plouay?
Plouay has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.1 °C and it receives 746 mm of precipitation per year.
What is the hottest day ever recorded in Plouay?
The hottest day measured in Plouay between 1940 and 2025 was 18 July 2022, reaching 39.1 °C.
What is the coldest day in Plouay?
The coldest day measured in Plouay between 1940 and 2025 was 16 January 1985, at -14.5 °C.
Does it snow in Plouay?
Yes. Plouay gets on average 4.1 cm of snow per year and has around 26 frost days.
Has the climate of Plouay warmed?
Yes: Plouay warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Plouay?
The wettest day measured in Plouay between 1940 and 2025 was 21 August 1944, with 48 mm of rain in 24 hours.
What was the windiest day in Plouay?
The windiest day measured in Plouay between 1940 and 2025 was 16 October 1987, with winds reaching 71.7 km/h.
What is the warmest month in Plouay?
The warmest month in Plouay is July (17.4 °C on average); the coldest is January (5.5 °C).
How much does it rain in Plouay?
Plouay receives on average 746 mm of precipitation per year, spread over about 129 rainy days.
Is it sunny in Plouay?
Plouay 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 Plouay?
The heaviest 24-hour snowfall measured in Plouay between 1940 and 2025 was 6 April 1975, with 9.8 cm.
Are there tropical nights in Plouay?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Plouay.
What was the most extreme apparent temperature in Plouay?
In Plouay, between 1940 and 2025, the highest apparent temperature reached 39.1 °C on 9 August 2003, and the lowest was -18.8 °C on 16 January 1985.
Compare Plouay with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Plouay