Summer warmth: Le Châtellier logs fewer 25-degree days than 93% of mainland French towns
January mornings start at about 2.4°C. By rainfall alone, it ranks wetter than 82% of mainland French towns. Rain peaks in December and eases off in June. Windscreens need scraping on about 37 mornings a year, the nights the air drops below 0°C.
These are the figures of Météo-France’s Louvigné-du-Désert station, 10 km north-east.
A year in Le Châtellier at a glance
Each month’s typical high and low in °C, at the Louvigné-du-Désert station.
What a year in Le Châtellier feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Louvigné-du-Désert.
About 941 mm of rain a year
December is the wettest month and June the driest. About 28 days a year bring 10 mm or more. 3rd wettest of 99 towns of 2,500+ in Ille-et-Vilaine.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Rennes-Saint-Jacques
37 frosts and 27 days of 25°C a year
On about 37 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 27 days a year reach 25°C, and 4 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Louvigné-du-Désert: 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 Louvigné-du-Désert
Louvigné-du-Désert is 10 km north-east of Le Châtellier. Every figure on this page is the station’s, not a measurement in Le Châtellier itself.
| Station (Météo-France number) | Louvigné-du-Désert (35162003) |
| Distance from the town | 10 km north-east |
| Station altitude | 153 m |
| Town altitude (its center) | 147 m |
| Period | 1991–2020 |
| Sunshine measured at | Rennes-Saint-Jacques, 54 km away |
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 Le Châtellier 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 Ille-et-Vilaine.
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 |
|---|---|---|---|---|
| Le Châtellier | Louvigné-du-Désert | 22.9°C | 2.4°C | 941 mm |
| Lécousse 7.3 km | Fougères | 23.3°C about the same | 3.2°C 0.8°C milder | 939 mm |
| Maen Roch 8.3 km | Fougères | 23.3°C about the same | 3.2°C 0.8°C milder | 939 mm |
| Fougères 8.7 km | Fougères | 23.3°C about the same | 3.2°C 0.8°C milder | 939 mm |
| Louvigné-du-Désert 11 km | same station | 22.9°C about the same | 2.4°C about the same | 941 mm |
| Saint-James 13 km | Pontorson | 23.1°C about the same | 3.4°C 1°C milder | 821 mm |
| Val-Couesnon 17 km | Pontorson | 23.1°C about the same | 3.4°C 1°C milder | 821 mm |
Le Châtellier weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Louvigné-du-Désert station; sunshine at Rennes-Saint-Jacques.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.7°C | 2.4°C | 5.0°C | 91 mm | 68 |
| February | 8.6°C | 2.2°C | 5.4°C | 74 mm | 93 |
| March | 11.6°C | 3.8°C | 7.7°C | 68 mm | 134 |
| April | 14.5°C | 5.3°C | 9.9°C | 67 mm | 174 |
| May | 17.8°C | 8.5°C | 13.1°C | 70 mm | 202 |
| June | 20.9°C | 11.1°C | 16.0°C | 61 mm | 213 |
| July | 22.9°C | 12.7°C | 17.8°C | 63 mm | 220 |
| August | 22.9°C | 12.6°C | 17.7°C | 65 mm | 207 |
| September | 20.2°C | 10.3°C | 15.3°C | 73 mm | 181 |
| October | 15.8°C | 8.4°C | 12.1°C | 98 mm | 117 |
| November | 11.1°C | 5.1°C | 8.1°C | 103 mm | 84 |
| December | 8.3°C | 2.8°C | 5.5°C | 109 mm | 69 |
| Year | 15.2°C | 7.1°C | 11.1°C | 941 mm | 1,762 |
Where Le Châtellier’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Louvigné-du-Désert, 10 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.
- Sunshine: the nearest station with at least 10 years of sunshine records, Rennes-Saint-Jacques, 54 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Ille-et-Vilaine.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Le Châtellier’s climate
How warm does Le Châtellier get in summer?
July is the warmest month, with average highs of 22.9°C. About 27 days a year reach 25°C, fewer than 93% of mainland French towns, and about 4 reach 30°C.
How cold does Le Châtellier get in winter?
February nights average 2.2°C. The air drops to 0°C or below on about 37 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Le Châtellier get?
About 941 mm a year, more than 82% of mainland French towns. December is the wettest month (109 mm) and June the driest (61 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Rennes-Saint-Jacques (54 km away), averages 1,762 hours of sunshine a year.
Are these figures for Le Châtellier itself?
No: they are the normals of the Météo-France station matched to Le Châtellier, Louvigné-du-Désert, 10 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 LOUVIGNE-DU-DESERT, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Le Châtellier →
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.