Montfort-sur-Meu climate — normals and trends
Montfort-sur-Meu (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.2 °C and it receives 688 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 (17.8 °C on average) and the coldest is January (5.0 °C). Rainfall peaks in May.
Montfort-sur-Meu averages 31 frost days, 3 hot days (≥ 30 °C) and 128 rainy days per year.
Montfort-sur-Meu has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 40 to 22 per year over the period.
The hottest day of the period reached 39.3 °C (on 18 July 2022) and the coldest -14.2 °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
Montfort-sur-MeuBrittany Region
- coords
- 48.14°, -1.96°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.2°C
Average daily high
15.0°C
Average daily low
7.6°C
Annual rainfall
688mm
Sunshine / day
8.4h
Mean relative humidity
81%
Average peak wind
18.7km/h
Seasonal range
12.8°C
Frost days (< 0 °C)
31 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
128 d/yr
Annual snowfall
5.8 cm
Average feels-like high
13.0 °C
Average feels-like low
5.2 °C
Average peak gust
38.2 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
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.34 · 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
39.3 °C
18 July 2022
Coldest day
-14.2 °C
17 January 1985
Wettest day
54 mm
29 June 1986
Windiest day
62.1 km/h
16 October 1987
Strongest gust
125.3 km/h
23 November 1984
Hottest feels-like
40.0 °C
5 August 2003
Coldest feels-like
-20.0 °C
17 January 1985
Snowiest day
12.5 cm
4 January 1979
Sunniest day
15.8 h
18 June 2000
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 | 8.0 °C | +0.4 °C | 176 mm | +116 mm |
| Feb | 9.5 °C | +0.8 °C | 47 mm | -6 mm |
| Mar | 13.1 °C | +1.5 °C | 30 mm | -27 mm |
| Apr | 17.8 °C | +3.7 °C | 59 mm | +0 mm |
| May | 19.7 °C | +2.4 °C | 33 mm | -38 mm |
| Jun | 25.0 °C | +4.5 °C | 38 mm | -18 mm |
| Jul | 24.2 °C | +1.7 °C | 103 mm | +56 mm |
| Aug | 25.0 °C | +2.7 °C | 31 mm | -17 mm |
| Sep | 19.8 °C | -0.3 °C | 51 mm | +1 mm |
| Oct | 16.8 °C | +0.8 °C | 45 mm | -17 mm |
| Nov | 13.2 °C | +2.0 °C | 55 mm | -9 mm |
| Dec | 9.7 °C | +1.2 °C | 69 mm | +7 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 Montfort-sur-Meu?
Montfort-sur-Meu has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.2 °C and it receives 688 mm of precipitation per year.
What is the hottest day ever recorded in Montfort-sur-Meu?
The hottest day measured in Montfort-sur-Meu between 1940 and 2025 was 18 July 2022, reaching 39.3 °C.
What is the coldest day in Montfort-sur-Meu?
The coldest day measured in Montfort-sur-Meu between 1940 and 2025 was 17 January 1985, at -14.2 °C.
Does it snow in Montfort-sur-Meu?
Yes. Montfort-sur-Meu gets on average 5.8 cm of snow per year and has around 31 frost days.
Has the climate of Montfort-sur-Meu warmed?
Yes: Montfort-sur-Meu warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Montfort-sur-Meu?
The wettest day measured in Montfort-sur-Meu between 1940 and 2025 was 29 June 1986, with 54 mm of rain in 24 hours.
What was the windiest day in Montfort-sur-Meu?
The windiest day measured in Montfort-sur-Meu between 1940 and 2025 was 16 October 1987, with winds reaching 62.1 km/h.
What is the warmest month in Montfort-sur-Meu?
The warmest month in Montfort-sur-Meu is July (17.8 °C on average); the coldest is January (5.0 °C).
How much does it rain in Montfort-sur-Meu?
Montfort-sur-Meu receives on average 688 mm of precipitation per year, spread over about 128 rainy days.
Is it sunny in Montfort-sur-Meu?
Montfort-sur-Meu gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Montfort-sur-Meu?
The heaviest 24-hour snowfall measured in Montfort-sur-Meu between 1940 and 2025 was 4 January 1979, with 12.5 cm.
Are there tropical nights in Montfort-sur-Meu?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Montfort-sur-Meu.
What was the most extreme apparent temperature in Montfort-sur-Meu?
In Montfort-sur-Meu, between 1940 and 2025, the highest apparent temperature reached 40.0 °C on 5 August 2003, and the lowest was -20.0 °C on 17 January 1985.
Compare Montfort-sur-Meu with another city
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Nearby cities
The climate around Montfort-sur-Meu