Summer arrives in force in Saint-Bernard, hotter than in 87% of mainland French towns
Deep winter brings January lows near 0.9°C. Its January nights bite harder than in 76% of mainland French towns. Temperatures cover 28°C across the year, low to high. Expect about 48 frosty starts a year, nights when the air falls below freezing.
Figures from Météo-France’s Villefranche station, 4.3 km north.
A year in Saint-Bernard at a glance
Each month’s typical high and low in °C, at the Villefranche station.
What a year in Saint-Bernard feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Villefranche.
About 791 mm of rain a year
October is the wettest month and February the driest. About 24 days a year bring 10 mm or more. 53rd wettest of 60 towns of 2,500+ in Ain.
Rain by month
Millimeters
48 frosts and 97 days of 25°C a year
On about 48 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 97 days a year reach 25°C, and 38 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Villefranche: 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 Villefranche
Villefranche is 4.3 km north of Saint-Bernard. Every figure on this page is the station’s, not a measurement in Saint-Bernard itself.
| Station (Météo-France number) | Villefranche (69264001) |
| Distance from the town | 4.3 km north |
| Station altitude | 174 m |
| Town altitude (its center) | 183 m |
| Period | 1991–2020 |
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-Bernard 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 Ain.
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-Bernard | Villefranche | 28.8°C | 0.9°C | 791 mm |
| Anse 2.4 km | same station | 28.8°C about the same | 0.9°C about the same | 791 mm |
| Trévoux 3.1 km | same station | 28.8°C about the same | 0.9°C about the same | 791 mm |
| Pommiers 3.8 km | Pommiers | 27.7°C 1.1°C cooler | 1.0°C about the same | 778 mm |
| Limas 3.9 km | same station | 28.8°C about the same | 0.9°C about the same | 791 mm |
| Jassans-Riottier 4.3 km | same station | 28.8°C about the same | 0.9°C about the same | 791 mm |
| Villefranche-sur-Saône 4.5 km | same station | 28.8°C about the same | 0.9°C about the same | 791 mm |
Saint-Bernard weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Villefranche station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 7.6°C | 0.9°C | 4.2°C | 48 mm |
| February | 9.6°C | 1.0°C | 5.3°C | 38 mm |
| March | 14.4°C | 3.6°C | 9.0°C | 47 mm |
| April | 18.4°C | 6.6°C | 12.5°C | 63 mm |
| May | 22.6°C | 10.8°C | 16.7°C | 74 mm |
| June | 26.7°C | 14.3°C | 20.5°C | 74 mm |
| July | 28.8°C | 16.2°C | 22.5°C | 77 mm |
| August | 28.5°C | 15.5°C | 22.0°C | 71 mm |
| September | 23.8°C | 12.0°C | 17.9°C | 68 mm |
| October | 18.1°C | 8.6°C | 13.4°C | 90 mm |
| November | 11.6°C | 4.4°C | 8.0°C | 88 mm |
| December | 8.0°C | 1.6°C | 4.8°C | 54 mm |
| Year | 18.2°C | 8.0°C | 13.1°C | 791 mm |
Where Saint-Bernard’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Villefranche, 4.3 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.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Ain.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Bernard’s climate
How warm does Saint-Bernard get in summer?
July is the warmest month, with average highs of 28.8°C. About 97 days a year reach 25°C, more than 86% of mainland French towns, and about 38 reach 30°C.
How cold does Saint-Bernard get in winter?
January nights average 0.9°C. The air drops to 0°C or below on about 48 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Saint-Bernard get?
About 791 mm a year, more than 58% of mainland French towns. October is the wettest month (90 mm) and February the driest (38 mm).
Are these figures for Saint-Bernard itself?
No: they are the normals of the Météo-France station matched to Saint-Bernard, Villefranche, 4.3 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 VILLEFRANCHE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Bernard →
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.