July in Saint-Clair runs hotter than in 85% of mainland French towns
Nights in January average 0.2°C. Rain follows the seasons: October brings about 3.1 times as much as February. By January nights alone, it runs colder than 82% of mainland French towns. Plan for rain on about 95 days a year, the days with 1 mm or more.
Figures from Météo-France’s Annonay station, 3.6 km south.
A year in Saint-Clair at a glance
Each month’s typical high and low in °C, at the Annonay station.
What a year in Saint-Clair feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Annonay.
About 802 mm of rain a year
October is the wettest month and February the driest. About 23 days a year bring 10 mm or more. 18th wettest of 22 towns of 2,500+ in Ardèche.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Colombier Jeune Rad
A frosty town: 60 frosts and 86 days of 25°C a year
On about 60 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 86 days a year reach 25°C, and 33 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Annonay: 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 Annonay
Annonay is 3.6 km south of Saint-Clair. Every figure on this page is the station’s, not a measurement in Saint-Clair itself.
| Station (Météo-France number) | Annonay (07010001) |
| Distance from the town | 3.6 km south |
| Station altitude | 336 m |
| Town altitude (its center) | 449 m |
| Period | 1991–2020 |
| Nearest station of any kind | 2 km |
| Sunshine measured at | Colombier Jeune Rad, 29 km away |
Saint-Clair sits 113 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Saint-Clair to run about 0.7°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 Saint-Clair 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 Ardèche.
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-Clair | Annonay | 28.4°C | 0.2°C | 802 mm |
| Davézieux 2.9 km | same station | 28.4°C about the same | 0.2°C about the same | 802 mm |
| Annonay 3.8 km | same station | 28.4°C about the same | 0.2°C about the same | 802 mm |
| Roiffieux 6.1 km | same station | 28.4°C about the same | 0.2°C about the same | 802 mm |
| Vernosc-lès-Annonay 6.5 km | same station | 28.4°C about the same | 0.2°C about the same | 802 mm |
| Bourg-Argental 9.4 km | Préaux Sa | 26.8°C 1.6°C cooler | 0.7°C about the same | 870 mm |
| Saint-Rambert-d'Albon 11 km | Sablons | 30.2°C 1.8°C warmer | 0.7°C about the same | 805 mm |
Saint-Clair weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Annonay station; sunshine at Colombier Jeune Rad.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.4°C | 0.2°C | 3.8°C | 51 mm | 73 |
| February | 9.1°C | 0.2°C | 4.7°C | 34 mm | 99 |
| March | 14.0°C | 2.9°C | 8.4°C | 40 mm | 168 |
| April | 17.4°C | 5.7°C | 11.6°C | 62 mm | 188 |
| May | 21.6°C | 9.5°C | 15.5°C | 76 mm | 218 |
| June | 25.8°C | 12.9°C | 19.4°C | 63 mm | 261 |
| July | 28.4°C | 14.9°C | 21.6°C | 68 mm | 282 |
| August | 28.1°C | 14.5°C | 21.3°C | 57 mm | 253 |
| September | 23.1°C | 11.0°C | 17.0°C | 88 mm | 197 |
| October | 17.7°C | 8.0°C | 12.8°C | 107 mm | 123 |
| November | 11.5°C | 3.6°C | 7.5°C | 106 mm | 81 |
| December | 7.9°C | 0.9°C | 4.4°C | 51 mm | 62 |
| Year | 17.7°C | 7.0°C | 12.3°C | 802 mm | 2,003 |
Where Saint-Clair’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Annonay, 3.6 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, Colombier Jeune Rad, 29 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 Ardèche.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Clair’s climate
How warm does Saint-Clair get in summer?
July is the warmest month, with average highs of 28.4°C. About 86 days a year reach 25°C, more than 77% of mainland French towns, and about 33 reach 30°C.
How cold does Saint-Clair get in winter?
January nights average 0.2°C. The air drops to 0°C or below on about 60 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Saint-Clair get?
About 802 mm a year, more than 60% of mainland French towns. October is the wettest month (107 mm) and February the driest (34 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Colombier Jeune Rad (29 km away), averages 2,003 hours of sunshine a year.
Are these figures for Saint-Clair itself?
No: they are the normals of the Météo-France station matched to Saint-Clair, Annonay, 3.6 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 ANNONAY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Clair →
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.