Rainfall in Châteauneuf-en-Thymerais trails that of 88% of mainland French towns: 635 mm a year
Peak summer warmth arrives in July, with afternoons near 26.0°C. Rain peaks in December and eases off in April. Frosty nights outnumber those of 69% of mainland French towns. Gritters and ice scrapers earn their keep on roughly 50 nights a year below 0°C.
Figures from Météo-France’s Thimert station, 6.2 km south-east.
A year in Châteauneuf-en-Thymerais at a glance
Each month’s typical high and low in °C, at the Thimert station.
What a year in Châteauneuf-en-Thymerais feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Thimert.
About 635 mm of rain a year
December is the wettest month and April the driest. About 17 days a year bring 10 mm or more. 7th wettest of 33 towns of 2,500+ in Eure-et-Loir.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chartres
50 frosts and 59 days of 25°C a year
On about 50 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 59 days a year reach 25°C, and 17 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Thimert: 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 Thimert
Thimert is 6.2 km south-east of Châteauneuf-en-Thymerais. Every figure on this page is the station’s, not a measurement in Châteauneuf-en-Thymerais itself.
| Station (Météo-France number) | Thimert (28386001) |
| Distance from the town | 6.2 km south-east |
| Station altitude | 225 m |
| Town altitude (its center) | 215 m |
| Period | 1991–2020 |
| Sunshine measured at | Chartres, 23 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 Châteauneuf-en-Thymerais 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Châteauneuf-en-Thymerais | Thimert | 26.0°C | 1.7°C | 635 mm |
| Courville-sur-Eure 15 km | Blandainville | 25.4°C 0.6°C cooler | 1.6°C about the same | 626 mm |
| Senonches 15 km | Senonches | 24.7°C 1.3°C cooler | 1.1°C 0.6°C colder | 817 mm |
| Vernouillet 18 km | Marville | 25.5°C 0.5°C cooler | 1.6°C about the same | 572 mm |
| Saint-Rémy-sur-Avre 20 km | Marville | 25.5°C 0.5°C cooler | 1.6°C about the same | 572 mm |
| Dreux 20 km | Marville | 25.5°C 0.5°C cooler | 1.6°C about the same | 572 mm |
| Saint-Georges-sur-Eure 20 km | Chartres | 25.2°C 0.8°C cooler | 1.8°C about the same | 606 mm |
Châteauneuf-en-Thymerais weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Thimert station; sunshine at Chartres.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | 1.7°C | 4.2°C | 59 mm | 64 |
| February | 8.2°C | 1.4°C | 4.8°C | 47 mm | 88 |
| March | 12.3°C | 3.0°C | 7.7°C | 48 mm | 140 |
| April | 16.1°C | 4.5°C | 10.3°C | 45 mm | 184 |
| May | 19.7°C | 7.8°C | 13.8°C | 60 mm | 209 |
| June | 23.2°C | 10.8°C | 17.0°C | 49 mm | 222 |
| July | 26.0°C | 12.6°C | 19.3°C | 47 mm | 230 |
| August | 26.1°C | 12.8°C | 19.5°C | 46 mm | 220 |
| September | 21.8°C | 10.3°C | 16.0°C | 47 mm | 181 |
| October | 16.2°C | 8.0°C | 12.1°C | 59 mm | 118 |
| November | 10.4°C | 4.5°C | 7.5°C | 60 mm | 72 |
| December | 7.1°C | 2.1°C | 4.6°C | 70 mm | 60 |
| Year | 16.1°C | 6.6°C | 11.4°C | 635 mm | 1,787 |
Where Châteauneuf-en-Thymerais’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Thimert, 6.2 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, 23 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 Châteauneuf-en-Thymerais’s climate
How warm does Châteauneuf-en-Thymerais get in summer?
August is the warmest month, with average highs of 26.1°C. About 59 days a year reach 25°C, fewer than 52% of mainland French towns, and about 17 reach 30°C.
How cold does Châteauneuf-en-Thymerais get in winter?
February nights average 1.4°C. The air drops to 0°C or below on about 50 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Châteauneuf-en-Thymerais get?
About 635 mm a year, less than 88% of mainland French towns. December is the wettest month (70 mm) and April the driest (45 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chartres (23 km away), averages 1,787 hours of sunshine a year.
Are these figures for Châteauneuf-en-Thymerais itself?
No: they are the normals of the Météo-France station matched to Châteauneuf-en-Thymerais, Thimert, 6.2 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 THIMERT, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Châteauneuf-en-Thymerais →
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.