Hardly any mainland French towns wake to more frost than Saint-Denis-sur-Coise
The warmest part of a July day comes in at 25.8°C on average. November is the wettest month, February the driest. By rainfall alone, it ranks wetter than 72% of mainland French towns. Plan for rain on about 117 days a year, the days with 1 mm or more.
These are the figures of Météo-France’s Saint-Symphorien-C station, 4.4 km north-east.
A year in Saint-Denis-sur-Coise at a glance
Each month’s typical high and low in °C, at the Saint-Symphorien-C station.
What a year in Saint-Denis-sur-Coise feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Symphorien-C.
About 861 mm of rain a year
November is the wettest month and February the driest. About 26 days a year bring 10 mm or more. 3rd wettest of 53 towns of 2,500+ in Loire.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Étienne-Bouthéon
A frosty town: 82 frosts and 61 days of 25°C a year
On about 82 nights a year the air drops to 0°C or below, and on about 11 days it stays below freezing all day. About 61 days a year reach 25°C, and 17 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Symphorien-C: 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 Saint-Symphorien-C
Saint-Symphorien-C is 4.4 km north-east of Saint-Denis-sur-Coise. Every figure on this page is the station’s, not a measurement in Saint-Denis-sur-Coise itself.
| Station (Météo-France number) | Saint-Symphorien-C (69238001) |
| Distance from the town | 4.4 km north-east |
| Station altitude | 610 m |
| Town altitude (its center) | 489 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Étienne-Bouthéon, 13 km away |
Saint-Denis-sur-Coise sits 121 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Saint-Denis-sur-Coise to run about 0.8°C warmer 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-Denis-sur-Coise 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.
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-Denis-sur-Coise | Saint-Symphorien-C | 25.8°C | −1.1°C | 861 mm |
| Saint-Symphorien-sur-Coise 3 km | same station | 25.8°C about the same | −1.1°C about the same | 861 mm |
| Chazelles-sur-Lyon 3.8 km | Chazelles-Lyon | 25.2°C 0.6°C cooler | −0.7°C about the same | 764 mm |
| Saint-Galmier 8.7 km | Saint-Étienne-Bouthéon | 26.9°C 1.1°C warmer | 0.3°C 1.4°C milder | 728 mm |
| Saint-Héand 10 km | Chazelles-Lyon | 25.2°C 0.6°C cooler | −0.7°C about the same | 764 mm |
| Saint-Martin-en-Haut 12 km | same station | 25.8°C about the same | −1.1°C about the same | 861 mm |
| Veauche 12 km | Saint-Étienne-Bouthéon | 26.9°C 1.1°C warmer | 0.3°C 1.4°C milder | 728 mm |
Saint-Denis-sur-Coise weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Symphorien-C station; sunshine at Saint-Étienne-Bouthéon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.6°C | −1.1°C | 2.7°C | 52 mm | 81 |
| February | 7.6°C | −1.1°C | 3.3°C | 43 mm | 109 |
| March | 11.7°C | 1.1°C | 6.4°C | 48 mm | 162 |
| April | 15.1°C | 3.3°C | 9.2°C | 70 mm | 186 |
| May | 19.3°C | 7.3°C | 13.3°C | 86 mm | 214 |
| June | 23.5°C | 10.8°C | 17.2°C | 84 mm | 241 |
| July | 25.8°C | 12.5°C | 19.2°C | 78 mm | 275 |
| August | 25.7°C | 12.2°C | 19.0°C | 79 mm | 259 |
| September | 21.0°C | 8.9°C | 15.0°C | 81 mm | 193 |
| October | 16.2°C | 6.3°C | 11.3°C | 90 mm | 135 |
| November | 10.4°C | 2.5°C | 6.4°C | 94 mm | 88 |
| December | 7.3°C | −0.2°C | 3.5°C | 58 mm | 76 |
| Year | 15.8°C | 5.2°C | 10.5°C | 861 mm | 2,018 |
Where Saint-Denis-sur-Coise’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Symphorien-C, 4.4 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, Saint-Étienne-Bouthéon, 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.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Denis-sur-Coise’s climate
How warm does Saint-Denis-sur-Coise get in summer?
July is the warmest month, with average highs of 25.8°C. About 61 days a year reach 25°C, fewer than 50% of mainland French towns, and about 17 reach 30°C.
How cold does Saint-Denis-sur-Coise get in winter?
January nights average −1.1°C. The air drops to 0°C or below on about 82 nights a year, and about 11 days a year stay below freezing all day.
How much rain does Saint-Denis-sur-Coise get?
About 861 mm a year, more than 72% of mainland French towns. November is the wettest month (94 mm) and February the driest (43 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Étienne-Bouthéon (13 km away), averages 2,018 hours of sunshine a year.
Are these figures for Saint-Denis-sur-Coise itself?
No: they are the normals of the Météo-France station matched to Saint-Denis-sur-Coise, Saint-Symphorien-C, 4.4 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 ST-SYMPHORIEN-C, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Denis-sur-Coise →
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.