Saint-Vulbas is wetter than 92% of mainland French towns: 1,118 mm of rain a year
Midwinter brings lows of about −0.1°C. Frost is common: about 65 nights a year drop below freezing, more than in 87% of mainland French towns. A year here swings 28°C from midwinter lows to midsummer highs. Warm coats and heating bills mark the months from November to March, when means dip under 10°C.
These are the figures of Météo-France’s Amberieu station, 17 km north.
A year in Saint-Vulbas at a glance
Each month’s typical high and low in °C, at the Amberieu station.
What a year in Saint-Vulbas feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Amberieu.
About 1,118 mm of rain a year
November is the wettest month and February the driest. About 36 days a year bring 10 mm or more. 14th wettest of 60 towns of 2,500+ in Ain.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Amberieu
A frosty town: 65 frosts and 76 days of 25°C a year
On about 65 nights a year the air drops to 0°C or below, and on about 8 days it stays below freezing all day. About 76 days a year reach 25°C, and 26 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Amberieu: 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 Amberieu
Amberieu is 17 km north of Saint-Vulbas. Every figure on this page is the station’s, not a measurement in Saint-Vulbas itself.
| Station (Météo-France number) | Amberieu (01089001) |
| Distance from the town | 17 km north |
| Station altitude | 250 m |
| Town altitude (its center) | 211 m |
| Period | 1991–2020 |
| Nearest station of any kind | 15 km |
| 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 Saint-Vulbas 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-Vulbas | Amberieu | 27.5°C | −0.1°C | 1,118 mm |
| Saint-Maurice-de-Gourdans 7.4 km | Lyon-Saint-Exupery | 27.5°C about the same | 1.1°C 1.2°C milder | 863 mm |
| Loyettes 7.6 km | Lyon-Saint-Exupery | 27.5°C about the same | 1.1°C 1.2°C milder | 863 mm |
| Saint-Romain-de-Jalionas 9.2 km | Lyon-Saint-Exupery | 27.5°C about the same | 1.1°C 1.2°C milder | 863 mm |
| Montalieu-Vercieu 9.5 km | Saint-Rambert-en-Bugey | 27.6°C about the same | −0.7°C 0.6°C colder | 1,512 mm |
| Lagnieu 9.6 km | same station | 27.5°C about the same | −0.1°C about the same | 1,118 mm |
| Chavanoz 10 km | Lyon-Saint-Exupery | 27.5°C about the same | 1.1°C 1.2°C milder | 863 mm |
Saint-Vulbas weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Amberieu station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.5°C | −0.1°C | 3.2°C | 85 mm | 68 |
| February | 8.4°C | 0.0°C | 4.2°C | 70 mm | 98 |
| March | 13.5°C | 2.6°C | 8.0°C | 75 mm | 170 |
| April | 17.1°C | 5.5°C | 11.3°C | 87 mm | 194 |
| May | 20.9°C | 9.5°C | 15.2°C | 106 mm | 220 |
| June | 25.0°C | 13.0°C | 19.0°C | 89 mm | 252 |
| July | 27.5°C | 14.7°C | 21.1°C | 86 mm | 288 |
| August | 27.3°C | 14.4°C | 20.9°C | 83 mm | 261 |
| September | 22.4°C | 10.9°C | 16.7°C | 106 mm | 189 |
| October | 17.1°C | 8.1°C | 12.6°C | 118 mm | 122 |
| November | 10.8°C | 3.5°C | 7.1°C | 118 mm | 73 |
| December | 7.0°C | 0.8°C | 3.9°C | 95 mm | 55 |
| Year | 17.0°C | 6.9°C | 11.9°C | 1,118 mm | 1,989 |
Where Saint-Vulbas’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Amberieu, 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, Amberieu, 17 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 Ain.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Vulbas’s climate
How warm does Saint-Vulbas get in summer?
July is the warmest month, with average highs of 27.5°C. About 76 days a year reach 25°C, more than 69% of mainland French towns, and about 26 reach 30°C.
How cold does Saint-Vulbas get in winter?
January nights average −0.1°C. The air drops to 0°C or below on about 65 nights a year, and about 8 days a year stay below freezing all day.
How much rain does Saint-Vulbas get?
About 1,118 mm a year, more than 92% of mainland French towns. November is the wettest month (118 mm) and February the driest (70 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Amberieu (17 km away), averages 1,989 hours of sunshine a year.
Are these figures for Saint-Vulbas itself?
No: they are the normals of the Météo-France station matched to Saint-Vulbas, Amberieu, 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 AMBERIEU, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Vulbas →
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.