Winter nights in Sautron are milder than in 83% of mainland French towns
The warmest part of a July day comes in at 25.1°C on average. Seasons differ by 22°C, from the coldest nights to the warmest afternoons. Warm afternoons come less often than in 70% of mainland French towns. Plan time outside from May to October, when highs sit at 18–25°C.
Figures from Météo-France’s Nantes-Bouguenais station, 13 km south.
A year in Sautron at a glance
Each month’s typical high and low in °C, at the Nantes-Bouguenais station.
What a year in Sautron feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Nantes-Bouguenais.
About 820 mm of rain a year
December is the wettest month and July the driest. About 25 days a year bring 10 mm or more. 39th wettest of 133 towns of 2,500+ in Loire-Atlantique.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Nantes-Bouguenais
29 frosts and 49 days of 25°C a year
On about 29 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 49 days a year reach 25°C, and 12 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Nantes-Bouguenais: 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 Nantes-Bouguenais
Nantes-Bouguenais is 13 km south of Sautron. Every figure on this page is the station’s, not a measurement in Sautron itself.
| Station (Météo-France number) | Nantes-Bouguenais (44020001) |
| Distance from the town | 13 km south |
| Station altitude | 26 m |
| Town altitude (its center) | 67 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 Sautron 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 Loire-Atlantique.
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 |
|---|---|---|---|---|
| Sautron | Nantes-Bouguenais | 25.1°C | 3.4°C | 820 mm |
| Orvault 5.1 km | same station | 25.1°C about the same | 3.4°C about the same | 820 mm |
| Couëron 5.7 km | same station | 25.1°C about the same | 3.4°C about the same | 820 mm |
| Saint-Herblain 5.9 km | same station | 25.1°C about the same | 3.4°C about the same | 820 mm |
| Indre 7 km | same station | 25.1°C about the same | 3.4°C about the same | 820 mm |
| Treillières 7.4 km | Nort-sur-Erdre | 25.6°C 0.5°C warmer | 3.0°C about the same | 760 mm |
| Vigneux-de-Bretagne 7.5 km | same station | 25.1°C about the same | 3.4°C about the same | 820 mm |
Sautron weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Nantes-Bouguenais station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.3°C | 3.4°C | 6.4°C | 88 mm | 73 |
| February | 10.5°C | 3.0°C | 6.7°C | 68 mm | 102 |
| March | 13.5°C | 4.9°C | 9.2°C | 58 mm | 147 |
| April | 16.2°C | 6.6°C | 11.4°C | 58 mm | 183 |
| May | 19.6°C | 9.8°C | 14.7°C | 61 mm | 203 |
| June | 23.0°C | 12.7°C | 17.8°C | 49 mm | 213 |
| July | 25.1°C | 14.3°C | 19.7°C | 44 mm | 229 |
| August | 25.4°C | 14.2°C | 19.8°C | 50 mm | 233 |
| September | 22.4°C | 11.8°C | 17.1°C | 60 mm | 199 |
| October | 17.6°C | 9.5°C | 13.5°C | 89 mm | 123 |
| November | 12.9°C | 5.9°C | 9.4°C | 94 mm | 91 |
| December | 9.8°C | 3.7°C | 6.7°C | 101 mm | 78 |
| Year | 17.1°C | 8.3°C | 12.7°C | 820 mm | 1,873 |
Where Sautron’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Nantes-Bouguenais, 13 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, Nantes-Bouguenais, 13 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 Loire-Atlantique.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Sautron’s climate
How warm does Sautron get in summer?
August is the warmest month, with average highs of 25.4°C. About 49 days a year reach 25°C, fewer than 70% of mainland French towns, and about 12 reach 30°C.
How cold does Sautron get in winter?
February nights average 3.0°C. The air drops to 0°C or below on about 29 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Sautron get?
About 820 mm a year, more than 64% of mainland French towns. December is the wettest month (101 mm) and July the driest (44 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Nantes-Bouguenais (13 km away), averages 1,873 hours of sunshine a year.
Are these figures for Sautron itself?
No: they are the normals of the Météo-France station matched to Sautron, Nantes-Bouguenais, 13 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 NANTES-BOUGUENAIS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Sautron →
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.