Injoux-Génissiat sits near the bottom of mainland French towns for winter warmth
July afternoons average 27.5°C. Only 29°C separates winter nights from summer afternoons. By rainfall alone, it ranks wetter than 96% of mainland French towns. Picnics, hikes and garden evenings suit May, June, August and September, with highs of 21–27°C.
These are the figures of Météo-France’s Bellegarde station, 4.6 km north-east.
A year in Injoux-Génissiat at a glance
Each month’s typical high and low in °C, at the Bellegarde station.
What a year in Injoux-Génissiat feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Bellegarde.
About 1,185 mm of rain a year
December is the wettest month and April the driest. About 42 days a year bring 10 mm or more. 10th wettest of 60 towns of 2,500+ in Ain.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Meythet
A frosty town: 83 frosts and 77 days of 25°C a year
On about 83 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 77 days a year reach 25°C, and 26 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Bellegarde: 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 Bellegarde
Bellegarde is 4.6 km north-east of Injoux-Génissiat. Every figure on this page is the station’s, not a measurement in Injoux-Génissiat itself.
| Station (Météo-France number) | Bellegarde (01033002) |
| Distance from the town | 4.6 km north-east |
| Station altitude | 350 m |
| Town altitude (its center) | 507 m |
| Period | 1994–2020 (the station’s own record) |
| Sunshine measured at | Meythet, 28 km away |
Injoux-Génissiat sits 157 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Injoux-Génissiat to run about 1°C cooler than these figures.
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 Injoux-Génissiat 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 |
|---|---|---|---|---|
| Injoux-Génissiat | Bellegarde | 27.5°C | −1.7°C | 1,185 mm |
| Valserhône 7.2 km | same station | 27.5°C about the same | −1.7°C about the same | 1,185 mm |
| Valleiry 16 km | Archamps | 26.4°C 1.1°C cooler | −1.0°C 0.7°C milder | 1,170 mm |
| Plateau d'Hauteville 17 km | Bénonces | 22.4°C 5.1°C cooler | −3.4°C 1.7°C colder | 1,724 mm |
| Nantua 17 km | Vieu | 24.7°C 2.8°C cooler | −2.8°C 1.1°C colder | 1,610 mm |
| Péron 19 km | Archamps | 26.4°C 1.1°C cooler | −1.0°C 0.7°C milder | 1,170 mm |
| Vallières-sur-Fier 20 km | Bloye | 27.8°C about the same | −1.5°C about the same | 1,207 mm |
Injoux-Génissiat weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Bellegarde station; sunshine at Meythet.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.9°C | −1.7°C | 2.1°C | 116 mm | 88 |
| February | 8.3°C | −1.4°C | 3.4°C | 93 mm | 113 |
| March | 13.0°C | 1.1°C | 7.0°C | 89 mm | 174 |
| April | 17.1°C | 4.3°C | 10.7°C | 82 mm | 191 |
| May | 21.0°C | 8.4°C | 14.7°C | 94 mm | 220 |
| June | 25.2°C | 11.7°C | 18.5°C | 86 mm | 256 |
| July | 27.5°C | 13.4°C | 20.4°C | 87 mm | 274 |
| August | 26.9°C | 13.0°C | 20.0°C | 91 mm | 249 |
| September | 22.3°C | 9.7°C | 16.0°C | 87 mm | 195 |
| October | 17.2°C | 6.6°C | 11.9°C | 109 mm | 141 |
| November | 10.5°C | 2.1°C | 6.3°C | 119 mm | 91 |
| December | 6.2°C | −0.9°C | 2.7°C | 132 mm | 78 |
| Year | 16.8°C | 5.5°C | 11.1°C | 1,185 mm | 2,069 |
Where Injoux-Génissiat’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Bellegarde, 4.6 km away: statistics for 1991–2020 (the station’s own years, 1994–2020, 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, Meythet, 28 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 Injoux-Génissiat’s climate
How warm does Injoux-Génissiat get in summer?
July is the warmest month, with average highs of 27.5°C. About 77 days a year reach 25°C, more than 70% of mainland French towns, and about 26 reach 30°C.
How cold does Injoux-Génissiat get in winter?
January nights average −1.7°C. The air drops to 0°C or below on about 83 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Injoux-Génissiat get?
About 1,185 mm a year, more than 96% of mainland French towns. December is the wettest month (132 mm) and April the driest (82 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Meythet (28 km away), averages 2,069 hours of sunshine a year.
Are these figures for Injoux-Génissiat itself?
No: they are the normals of the Météo-France station matched to Injoux-Génissiat, Bellegarde, 4.6 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 BELLEGARDE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Injoux-Génissiat →
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.