Fewer days reach 25 degrees in Saint-Berthevin than in 80% of mainland French towns
On a normal January night the air cools to about 2.7°C. Only about 34 nights a year bring a frost, fewer than in 68% of mainland French towns. The rainiest month is December; the driest is July. Gritters and ice scrapers earn their keep on roughly 34 nights a year below 0°C.
These are the figures of Météo-France’s Laval-Etronnier station, 7.6 km south-east.
A year in Saint-Berthevin at a glance
Each month’s typical high and low in °C, at the Laval-Etronnier station.
What a year in Saint-Berthevin feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Laval-Etronnier.
About 757 mm of rain a year
December is the wettest month and July the driest. About 23 days a year bring 10 mm or more. 15th wettest of 19 towns of 2,500+ in Mayenne.
Rain by month
Millimeters
34 frosts and 41 days of 25°C a year
On about 34 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 41 days a year reach 25°C, and 9 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Laval-Etronnier: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Laval-Etronnier
Laval-Etronnier is 7.6 km south-east of Saint-Berthevin. Every figure on this page is the station’s, not a measurement in Saint-Berthevin itself.
| Station (Météo-France number) | Laval-Etronnier (53130008) |
| Distance from the town | 7.6 km south-east |
| Station altitude | 100 m |
| Town altitude (its center) | 91 m |
| Period | 1991–2020 |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Saint-Berthevin compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Mayenne.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Saint-Berthevin | Laval-Etronnier | 24.6°C | 2.7°C | 757 mm |
| Laval 4.3 km | same station | 24.6°C about the same | 2.7°C about the same | 757 mm |
| Changé 4.6 km | same station | 24.6°C about the same | 2.7°C about the same | 757 mm |
| L'Huisserie 6.8 km | same station | 24.6°C about the same | 2.7°C about the same | 757 mm |
| Loiron-Ruillé 8.4 km | Cossé-le-Vivien | 25.4°C 0.8°C warmer | 2.5°C about the same | 796 mm |
| Bonchamp-lès-Laval 9.4 km | Argentré | 25.2°C 0.6°C warmer | 2.2°C 0.5°C colder | 781 mm |
| Louverné 10 km | Argentré | 25.2°C 0.6°C warmer | 2.2°C 0.5°C colder | 781 mm |
Saint-Berthevin weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Laval-Etronnier station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 8.2°C | 2.7°C | 5.4°C | 74 mm |
| February | 9.3°C | 2.4°C | 5.9°C | 55 mm |
| March | 12.6°C | 4.1°C | 8.3°C | 54 mm |
| April | 15.6°C | 5.7°C | 10.7°C | 55 mm |
| May | 19.0°C | 9.0°C | 14.0°C | 64 mm |
| June | 22.4°C | 11.9°C | 17.2°C | 53 mm |
| July | 24.6°C | 13.7°C | 19.1°C | 48 mm |
| August | 24.7°C | 13.7°C | 19.2°C | 51 mm |
| September | 21.5°C | 11.1°C | 16.3°C | 60 mm |
| October | 16.6°C | 8.8°C | 12.7°C | 79 mm |
| November | 11.6°C | 5.4°C | 8.5°C | 76 mm |
| December | 8.6°C | 3.0°C | 5.8°C | 87 mm |
| Year | 16.2°C | 7.6°C | 11.9°C | 757 mm |
Where Saint-Berthevin’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Laval-Etronnier, 7.6 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Mayenne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Berthevin’s climate
How warm does Saint-Berthevin get in summer?
August is the warmest month, with average highs of 24.7°C. About 41 days a year reach 25°C, fewer than 80% of mainland French towns, and about 9 reach 30°C.
How cold does Saint-Berthevin get in winter?
February nights average 2.4°C. The air drops to 0°C or below on about 34 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Saint-Berthevin get?
About 757 mm a year, more than 50% of mainland French towns. December is the wettest month (87 mm) and July the driest (48 mm).
Are these figures for Saint-Berthevin itself?
No: they are the normals of the Météo-France station matched to Saint-Berthevin, Laval-Etronnier, 7.6 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station LAVAL-ETRONNIER, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Berthevin →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.