Trélazé climate — normals and trends
Trélazé (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.8 °C and it receives 648 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 (19.4 °C on average) and the coldest is January (4.8 °C). Rainfall peaks in May.
Trélazé averages 34 frost days, 8 hot days (≥ 30 °C) and 120 rainy days per year.
Trélazé has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 44 to 24 per year over the period.
The hottest day of the period reached 41.5 °C (on 18 July 2022) and the coldest -18.0 °C (on 21 January 1942).
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
TrélazéPays de la Loire Region
- coords
- 47.45°, -0.47°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.8°C
Average daily high
15.8°C
Average daily low
8.1°C
Annual rainfall
648mm
Sunshine / day
8.2h
Mean relative humidity
78%
Average peak wind
18.2km/h
Seasonal range
14.6°C
Frost days (< 0 °C)
34 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
120 d/yr
Annual snowfall
5.9 cm
Average feels-like high
13.8 °C
Average feels-like low
5.6 °C
Average peak gust
36.4 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
12.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.35 · 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
41.5 °C
18 July 2022
Coldest day
-18.0 °C
21 January 1942
Wettest day
79 mm
9 October 2024
Windiest day
62.4 km/h
26 December 1999
Strongest gust
132.5 km/h
26 December 1999
Hottest feels-like
42.2 °C
30 July 2024
Coldest feels-like
-22.7 °C
21 January 1942
Snowiest day
13.4 cm
23 February 1942
Sunniest day
15.8 h
19 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 | 8.1 °C | +0.6 °C | 151 mm | +91 mm |
| Feb | 9.3 °C | +0.4 °C | 57 mm | +4 mm |
| Mar | 13.8 °C | +1.7 °C | 37 mm | -16 mm |
| Apr | 18.7 °C | +3.7 °C | 55 mm | +2 mm |
| May | 21.6 °C | +3.1 °C | 24 mm | -40 mm |
| Jun | 27.8 °C | +5.7 °C | 22 mm | -25 mm |
| Jul | 26.8 °C | +2.5 °C | 35 mm | -4 mm |
| Aug | 27.7 °C | +3.7 °C | 29 mm | -14 mm |
| Sep | 21.1 °C | -0.2 °C | 40 mm | -9 mm |
| Oct | 17.8 °C | +1.1 °C | 46 mm | -15 mm |
| Nov | 13.7 °C | +2.4 °C | 60 mm | -2 mm |
| Dec | 9.9 °C | +1.6 °C | 54 mm | -8 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 Trélazé?
Trélazé has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.8 °C and it receives 648 mm of precipitation per year.
What is the hottest day ever recorded in Trélazé?
The hottest day measured in Trélazé between 1940 and 2025 was 18 July 2022, reaching 41.5 °C.
What is the coldest day in Trélazé?
The coldest day measured in Trélazé between 1940 and 2025 was 21 January 1942, at -18.0 °C.
Does it snow in Trélazé?
Yes. Trélazé gets on average 5.9 cm of snow per year and has around 34 frost days.
Has the climate of Trélazé warmed?
Yes: Trélazé warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Trélazé?
The wettest day measured in Trélazé between 1940 and 2025 was 9 October 2024, with 79 mm of rain in 24 hours.
What was the windiest day in Trélazé?
The windiest day measured in Trélazé between 1940 and 2025 was 26 December 1999, with winds reaching 62.4 km/h.
What is the warmest month in Trélazé?
The warmest month in Trélazé is July (19.4 °C on average); the coldest is January (4.8 °C).
How much does it rain in Trélazé?
Trélazé receives on average 648 mm of precipitation per year, spread over about 120 rainy days.
Is it sunny in Trélazé?
Trélazé gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Trélazé?
The heaviest 24-hour snowfall measured in Trélazé between 1940 and 2025 was 23 February 1942, with 13.4 cm.
Are there tropical nights in Trélazé?
Yes: Trélazé has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Trélazé?
In Trélazé, between 1940 and 2025, the highest apparent temperature reached 42.2 °C on 30 July 2024, and the lowest was -22.7 °C on 21 January 1942.
Compare Trélazé with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Trélazé