Hardly any mainland French towns collect less rain than Berchères-Saint-Germain: 606 mm a year
January mornings start at about 1.8°C. Warm afternoons come less often than in 73% of mainland French towns. Temperatures cover 24°C across the year, low to high. Frost greets about 45 mornings a year, so leave time to clear the car.
Figures from Météo-France’s Chartres station, 8.4 km south.
A year in Berchères-Saint-Germain at a glance
Each month’s typical high and low in °C, at the Chartres station.
What a year in Berchères-Saint-Germain feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Chartres.
About 606 mm of rain a year
December is the wettest month and February the driest. About 15 days a year bring 10 mm or more. 18th wettest of 33 towns of 2,500+ in Eure-et-Loir.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chartres
45 frosts and 47 days of 25°C a year
On about 45 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 47 days a year reach 25°C, and 12 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Chartres: 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 Chartres
Chartres is 8.4 km south of Berchères-Saint-Germain. Every figure on this page is the station’s, not a measurement in Berchères-Saint-Germain itself.
| Station (Météo-France number) | Chartres (28070001) |
| Distance from the town | 8.4 km south |
| Station altitude | 155 m |
| Town altitude (its center) | 160 m |
| Period | 1991–2020 |
| Sunshine measured at | the same station |
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 Berchères-Saint-Germain 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 Eure-et-Loir.
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 |
|---|---|---|---|---|
| Berchères-Saint-Germain | Chartres | 25.2°C | 1.8°C | 606 mm |
| Lèves 6.9 km | same station | 25.2°C about the same | 1.8°C about the same | 606 mm |
| Champhol 7.9 km | same station | 25.2°C about the same | 1.8°C about the same | 606 mm |
| Pierres 9 km | Houx | 25.7°C 0.5°C warmer | 1.2°C 0.6°C colder | 622 mm |
| Mainvilliers 9.2 km | same station | 25.2°C about the same | 1.8°C about the same | 606 mm |
| Maintenon 9.7 km | Houx | 25.7°C 0.5°C warmer | 1.2°C 0.6°C colder | 622 mm |
| Chartres 10 km | same station | 25.2°C about the same | 1.8°C about the same | 606 mm |
Berchères-Saint-Germain weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Chartres station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.9°C | 1.8°C | 4.3°C | 50 mm | 64 |
| February | 8.2°C | 1.5°C | 4.8°C | 42 mm | 88 |
| March | 12.2°C | 3.4°C | 7.8°C | 44 mm | 140 |
| April | 15.6°C | 5.1°C | 10.3°C | 45 mm | 184 |
| May | 19.0°C | 8.5°C | 13.8°C | 55 mm | 209 |
| June | 22.5°C | 11.6°C | 17.0°C | 52 mm | 222 |
| July | 25.2°C | 13.5°C | 19.4°C | 51 mm | 230 |
| August | 25.3°C | 13.4°C | 19.4°C | 48 mm | 220 |
| September | 21.4°C | 10.5°C | 15.9°C | 46 mm | 181 |
| October | 16.2°C | 8.0°C | 12.1°C | 58 mm | 118 |
| November | 10.6°C | 4.5°C | 7.6°C | 56 mm | 72 |
| December | 7.3°C | 2.2°C | 4.8°C | 61 mm | 60 |
| Year | 15.9°C | 7.0°C | 11.4°C | 606 mm | 1,787 |
Where Berchères-Saint-Germain’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Chartres, 8.4 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, Chartres, 8.4 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 Eure-et-Loir.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Berchères-Saint-Germain’s climate
How warm does Berchères-Saint-Germain get in summer?
August is the warmest month, with average highs of 25.3°C. About 47 days a year reach 25°C, fewer than 73% of mainland French towns, and about 12 reach 30°C.
How cold does Berchères-Saint-Germain get in winter?
February nights average 1.5°C. The air drops to 0°C or below on about 45 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Berchères-Saint-Germain get?
About 606 mm a year, less than 95% of mainland French towns. December is the wettest month (61 mm) and February the driest (42 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chartres (8.4 km away), averages 1,787 hours of sunshine a year.
Are these figures for Berchères-Saint-Germain itself?
No: they are the normals of the Météo-France station matched to Berchères-Saint-Germain, Chartres, 8.4 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 CHARTRES, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Berchères-Saint-Germain →
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.