Léthuin is drier than 82% of mainland French towns: 656 mm of rain a year
Peak summer warmth arrives in July, with afternoons near 25.9°C. Frosty nights outnumber those of 75% of mainland French towns. Of all months, December brings the most rain and April the least. Expect about 54 frosty starts a year, nights when the air falls below freezing.
Figures from Météo-France’s Sainville station, 4.6 km north-east.
A year in Léthuin at a glance
Each month’s typical high and low in °C, at the Sainville station.
What a year in Léthuin feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Sainville.
About 656 mm of rain a year
December is the wettest month and April the driest. About 17 days a year bring 10 mm or more. 5th wettest of 33 towns of 2,500+ in Eure-et-Loir.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chartres
A frosty town: 54 frosts and 57 days of 25°C a year
On about 54 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 57 days a year reach 25°C, and 15 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Sainville: 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 Sainville
Sainville is 4.6 km north-east of Léthuin. Every figure on this page is the station’s, not a measurement in Léthuin itself.
| Station (Météo-France number) | Sainville (28363001) |
| Distance from the town | 4.6 km north-east |
| Station altitude | 149 m |
| Town altitude (its center) | 150 m |
| Period | 1991–2020 |
| Sunshine measured at | Chartres, 29 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 Léthuin 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 |
|---|---|---|---|---|
| Léthuin | Sainville | 25.9°C | 1.2°C | 656 mm |
| Angerville 12 km | same station | 25.9°C about the same | 1.2°C about the same | 656 mm |
| Auneau-Bleury-Saint-Symphorien 14 km | same station | 25.9°C about the same | 1.2°C about the same | 656 mm |
| Ablis 17 km | same station | 25.9°C about the same | 1.2°C about the same | 656 mm |
| Le Mérévillois 17 km | same station | 25.9°C about the same | 1.2°C about the same | 656 mm |
| Toury 20 km | Trinay | 25.7°C about the same | 1.5°C about the same | 645 mm |
| Dourdan 21 km | Dourdan | 25.7°C about the same | 1.5°C about the same | 654 mm |
Léthuin weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Sainville station; sunshine at Chartres.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.0°C | 1.2°C | 4.1°C | 52 mm | 64 |
| February | 8.3°C | 0.9°C | 4.6°C | 48 mm | 88 |
| March | 12.5°C | 2.8°C | 7.6°C | 48 mm | 140 |
| April | 16.1°C | 4.6°C | 10.3°C | 46 mm | 184 |
| May | 19.7°C | 8.0°C | 13.8°C | 64 mm | 209 |
| June | 23.1°C | 11.0°C | 17.1°C | 57 mm | 222 |
| July | 25.9°C | 12.9°C | 19.4°C | 53 mm | 230 |
| August | 26.0°C | 12.9°C | 19.4°C | 51 mm | 220 |
| September | 21.8°C | 9.9°C | 15.9°C | 49 mm | 181 |
| October | 16.4°C | 7.4°C | 11.9°C | 61 mm | 118 |
| November | 10.7°C | 4.0°C | 7.4°C | 60 mm | 72 |
| December | 7.4°C | 1.7°C | 4.5°C | 66 mm | 60 |
| Year | 16.2°C | 6.4°C | 11.3°C | 656 mm | 1,787 |
Where Léthuin’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Sainville, 4.6 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.
- Sunshine: the nearest station with at least 10 years of sunshine records, Chartres, 29 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 Léthuin’s climate
How warm does Léthuin get in summer?
August is the warmest month, with average highs of 26.0°C. About 57 days a year reach 25°C, fewer than 56% of mainland French towns, and about 15 reach 30°C.
How cold does Léthuin get in winter?
February nights average 0.9°C. The air drops to 0°C or below on about 54 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Léthuin get?
About 656 mm a year, less than 82% of mainland French towns. December is the wettest month (66 mm) and April the driest (46 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chartres (29 km away), averages 1,787 hours of sunshine a year.
Are these figures for Léthuin itself?
No: they are the normals of the Météo-France station matched to Léthuin, Sainville, 4.6 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 SAINVILLE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Léthuin →
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.