Dry weather: only 618 mm a year falls on Guillonville, less than on 93% of mainland French towns
On a normal July day the thermometer tops out near 25.9°C. Frosty nights outnumber those of 70% of mainland French towns. Wet weather is most frequent in May and least in September. Waterproofs come out on about 106 days a year, each with 1 mm of rain or more.
These are the figures of Météo-France’s Guillonville_Ca28 station, 1.3 km south-east.
A year in Guillonville at a glance
Each month’s typical high and low in °C, at the Guillonville_Ca28 station.
What a year in Guillonville feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Guillonville_Ca28.
About 618 mm of rain a year
May is the wettest month and September the driest. About 16 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 Orleans
A frosty town: 50 frosts and 55 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 55 days a year reach 25°C, and 15 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Guillonville_Ca28: 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 Guillonville_Ca28
Guillonville_Ca28 is 1.3 km south-east of Guillonville. Every figure on this page is the station’s, not a measurement in Guillonville itself.
| Station (Météo-France number) | Guillonville_Ca28 (28190001) |
| Distance from the town | 1.3 km south-east |
| Station altitude | 132 m |
| Town altitude (its center) | 134 m |
| Period | 1995–2020 (the station’s own record) |
| Sunshine measured at | Orleans, 15 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 Guillonville 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 |
|---|---|---|---|---|
| Guillonville | Guillonville_Ca28 | 25.9°C | 1.4°C | 618 mm |
| Chevilly 18 km | Trinay | 25.7°C about the same | 1.5°C about the same | 645 mm |
| Les Villages Vovéens 20 km | Viabon | 26.2°C about the same | 1.7°C about the same | 601 mm |
| Ormes 21 km | Orleans | 25.8°C about the same | 1.7°C about the same | 636 mm |
| Beauce la Romaine 21 km | Saint-Léonard-en-B | 26.8°C 0.9°C warmer | 1.7°C about the same | 642 mm |
| Bonneval 21 km | Pré-Saint-Évroult | 25.8°C about the same | 1.5°C about the same | 592 mm |
| Châteaudun 23 km | Chateaudun | 25.8°C about the same | 1.4°C about the same | 603 mm |
Guillonville weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Guillonville_Ca28 station; sunshine at Orleans.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | 1.4°C | 4.0°C | 47 mm | 64 |
| February | 8.3°C | 1.2°C | 4.7°C | 42 mm | 91 |
| March | 12.3°C | 2.8°C | 7.6°C | 46 mm | 146 |
| April | 16.1°C | 4.8°C | 10.5°C | 48 mm | 186 |
| May | 19.5°C | 8.4°C | 13.9°C | 61 mm | 215 |
| June | 23.2°C | 11.4°C | 17.3°C | 51 mm | 220 |
| July | 25.9°C | 13.0°C | 19.5°C | 55 mm | 232 |
| August | 25.8°C | 13.1°C | 19.4°C | 45 mm | 229 |
| September | 21.9°C | 10.1°C | 16.0°C | 42 mm | 185 |
| October | 16.7°C | 7.9°C | 12.3°C | 60 mm | 121 |
| November | 10.7°C | 4.3°C | 7.5°C | 60 mm | 74 |
| December | 7.2°C | 1.9°C | 4.6°C | 61 mm | 61 |
| Year | 16.2°C | 6.7°C | 11.4°C | 618 mm | 1,823 |
Where Guillonville’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Guillonville_Ca28, 1.3 km away: statistics for 1991–2020 (the station’s own years, 1995–2020, where its record is shorter).
- 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, Orleans, 15 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 Guillonville’s climate
How warm does Guillonville get in summer?
July is the warmest month, with average highs of 25.9°C. About 55 days a year reach 25°C, fewer than 62% of mainland French towns, and about 15 reach 30°C.
How cold does Guillonville get in winter?
February nights average 1.2°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 Guillonville get?
About 618 mm a year, less than 93% of mainland French towns. May is the wettest month (61 mm) and September the driest (42 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Orleans (15 km away), averages 1,823 hours of sunshine a year.
Are these figures for Guillonville itself?
No: they are the normals of the Météo-France station matched to Guillonville, Guillonville_Ca28, 1.3 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 GUILLONVILLE_CA28, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Guillonville →
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.