Weather without surprises: Saint-Arnoult keeps close to the norm for mainland French towns
January nights average 1.6°C, July afternoons 26.0°C, and a year brings 769 mm of rain. A year here swings 25°C from midwinter lows to midsummer highs. By frosts alone, it ranks colder than 69% of mainland French towns. Expect about 49 frosty starts a year, nights when the air falls below freezing.
These are the figures of Météo-France’s Saint-Laurent-en-G station, 17 km south-west.
A year in Saint-Arnoult at a glance
Each month’s typical high and low in °C, at the Saint-Laurent-en-G station.
What a year in Saint-Arnoult feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Laurent-en-G.
About 769 mm of rain a year
December is the wettest month and August the driest. About 23 days a year bring 10 mm or more. The wettest of 26 towns of 2,500+ in Loir-et-Cher.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Blois
49 frosts and 57 days of 25°C a year
On about 49 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 57 days a year reach 25°C, and 16 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Laurent-en-G: 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 Saint-Laurent-en-G
Saint-Laurent-en-G is 17 km south-west of Saint-Arnoult. Every figure on this page is the station’s, not a measurement in Saint-Arnoult itself.
| Station (Météo-France number) | Saint-Laurent-en-G (37224001) |
| Distance from the town | 17 km south-west |
| Station altitude | 155 m |
| Town altitude (its center) | 118 m |
| Period | 1991–2020 |
| Nearest station of any kind | 14 km |
| Sunshine measured at | Blois, 26 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 Saint-Arnoult 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 Loir-et-Cher.
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 |
|---|---|---|---|---|
| Saint-Arnoult | Saint-Laurent-en-G | 26.0°C | 1.6°C | 769 mm |
| Montoire-sur-le-Loir 5.2 km | same station | 26.0°C about the same | 1.6°C about the same | 769 mm |
| Château-Renault 13 km | same station | 26.0°C about the same | 1.6°C about the same | 769 mm |
| Vendôme 17 km | Blois | 26.2°C about the same | 1.8°C about the same | 641 mm |
| Saint-Ouen 19 km | Blois | 26.2°C about the same | 1.8°C about the same | 641 mm |
| Monnaie 25 km | Tours | 25.9°C about the same | 2.5°C 0.9°C milder | 678 mm |
| Saint-Calais 25 km | Cormes | 25.8°C about the same | 1.7°C about the same | 759 mm |
Saint-Arnoult weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Laurent-en-G station; sunshine at Blois.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.3°C | 1.6°C | 4.5°C | 76 mm | 63 |
| February | 8.6°C | 1.4°C | 5.0°C | 61 mm | 93 |
| March | 12.6°C | 3.3°C | 7.9°C | 57 mm | 148 |
| April | 15.9°C | 4.8°C | 10.4°C | 61 mm | 187 |
| May | 19.5°C | 8.3°C | 13.9°C | 63 mm | 211 |
| June | 23.5°C | 11.4°C | 17.4°C | 53 mm | 210 |
| July | 26.0°C | 13.3°C | 19.7°C | 53 mm | 231 |
| August | 26.0°C | 13.3°C | 19.6°C | 52 mm | 228 |
| September | 21.9°C | 10.2°C | 16.1°C | 56 mm | 187 |
| October | 16.6°C | 8.0°C | 12.3°C | 73 mm | 122 |
| November | 11.0°C | 4.5°C | 7.8°C | 80 mm | 75 |
| December | 7.8°C | 2.1°C | 5.0°C | 86 mm | 59 |
| Year | 16.4°C | 6.8°C | 11.6°C | 769 mm | 1,813 |
Where Saint-Arnoult’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Laurent-en-G, 17 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, Blois, 26 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 Loir-et-Cher.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Arnoult’s climate
How warm does Saint-Arnoult get in summer?
July is the warmest month, with average highs of 26.0°C. About 57 days a year reach 25°C, fewer than 57% of mainland French towns, and about 16 reach 30°C.
How cold does Saint-Arnoult get in winter?
February nights average 1.4°C. The air drops to 0°C or below on about 49 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Saint-Arnoult get?
About 769 mm a year, more than 53% of mainland French towns. December is the wettest month (86 mm) and August the driest (52 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Blois (26 km away), averages 1,813 hours of sunshine a year.
Are these figures for Saint-Arnoult itself?
No: they are the normals of the Météo-France station matched to Saint-Arnoult, Saint-Laurent-en-G, 17 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 ST-LAURENT-EN-G, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Arnoult →
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.