Saint-Michel-sur-Rhône gets more frosts than 86% of mainland French towns
Expect July afternoons of about 28.1°C. By July afternoons alone, it runs hotter than 79% of mainland French towns. The gap between a January night and a July afternoon is 28°C. Keep the boiler serviced for the months from November to March, which average under 10°C.
These are the figures of Météo-France’s Mornant station, 20 km north.
A year in Saint-Michel-sur-Rhône at a glance
Each month’s typical high and low in °C, at the Mornant station.
What a year in Saint-Michel-sur-Rhône feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Mornant.
About 759 mm of rain a year
October is the wettest month and February the driest. About 22 days a year bring 10 mm or more. 12th wettest of 53 towns of 2,500+ in Loire.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Lyon-Bron
A frosty town: 65 frosts and 87 days of 25°C a year
On about 65 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 87 days a year reach 25°C, and 33 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Mornant: 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 Mornant
Mornant is 20 km north of Saint-Michel-sur-Rhône. Every figure on this page is the station’s, not a measurement in Saint-Michel-sur-Rhône itself.
| Station (Météo-France number) | Mornant (69141001) |
| Distance from the town | 20 km north |
| Station altitude | 343 m |
| Town altitude (its center) | 316 m |
| Period | 1991–2020 |
| Nearest station of any kind | 6.6 km |
| Sunshine measured at | Lyon-Bron, 35 km away |
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-Michel-sur-Rhône 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Saint-Michel-sur-Rhône | Mornant | 28.1°C | 0.0°C | 759 mm |
| Saint-Clair-du-Rhône 2.7 km | Sablons | 30.2°C 2.1°C warmer | 0.7°C 0.7°C milder | 805 mm |
| Condrieu 3.1 km | Sablons | 30.2°C 2.1°C warmer | 0.7°C 0.7°C milder | 805 mm |
| Chavanay 3.2 km | Saint-Désirat Sa | 28.6°C 0.5°C warmer | 1.5°C 1.5°C milder | 698 mm |
| Pélussin 5.8 km | Annonay | 28.4°C about the same | 0.2°C about the same | 802 mm |
| Saint-Maurice-l'Exil 6.8 km | Sablons | 30.2°C 2.1°C warmer | 0.7°C 0.7°C milder | 805 mm |
| Ampuis 7.8 km | Sablons | 30.2°C 2.1°C warmer | 0.7°C 0.7°C milder | 805 mm |
Saint-Michel-sur-Rhône weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Mornant station; sunshine at Lyon-Bron.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.0°C | 0.0°C | 3.5°C | 48 mm | 71 |
| February | 8.9°C | 0.2°C | 4.5°C | 35 mm | 102 |
| March | 13.8°C | 2.7°C | 8.2°C | 43 mm | 174 |
| April | 17.3°C | 5.3°C | 11.3°C | 60 mm | 198 |
| May | 21.3°C | 9.2°C | 15.2°C | 71 mm | 224 |
| June | 25.5°C | 12.8°C | 19.2°C | 70 mm | 257 |
| July | 28.1°C | 14.7°C | 21.4°C | 69 mm | 288 |
| August | 27.9°C | 14.4°C | 21.1°C | 62 mm | 263 |
| September | 23.0°C | 10.7°C | 16.8°C | 77 mm | 204 |
| October | 17.5°C | 7.7°C | 12.6°C | 87 mm | 131 |
| November | 11.2°C | 3.4°C | 7.3°C | 86 mm | 79 |
| December | 7.6°C | 0.7°C | 4.2°C | 50 mm | 59 |
| Year | 17.4°C | 6.8°C | 12.1°C | 759 mm | 2,050 |
Where Saint-Michel-sur-Rhône’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Mornant, 20 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, Lyon-Bron, 35 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-Michel-sur-Rhône’s climate
How warm does Saint-Michel-sur-Rhône get in summer?
July is the warmest month, with average highs of 28.1°C. About 87 days a year reach 25°C, more than 77% of mainland French towns, and about 33 reach 30°C.
How cold does Saint-Michel-sur-Rhône get in winter?
January nights average 0.0°C. The air drops to 0°C or below on about 65 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Saint-Michel-sur-Rhône get?
About 759 mm a year, more than 51% of mainland French towns. October is the wettest month (87 mm) and February the driest (35 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Lyon-Bron (35 km away), averages 2,050 hours of sunshine a year.
Are these figures for Saint-Michel-sur-Rhône itself?
No: they are the normals of the Météo-France station matched to Saint-Michel-sur-Rhône, Mornant, 20 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 MORNANT, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Michel-sur-Rhône →
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.