Ice on the ground: Grézieu-le-Marché sees more frosts than 93% of mainland French towns
July afternoons average 25.2°C. Temperatures cover 26°C across the year, low to high. Summers stay cool: July afternoons here are cooler than in 68% of mainland French towns. Long walks are most pleasant from May to September, when afternoons reach 19–25°C.
These are the figures of Météo-France’s Chazelles-Lyon station, 2.5 km south-west.
A year in Grézieu-le-Marché at a glance
Each month’s typical high and low in °C, at the Chazelles-Lyon station.
What a year in Grézieu-le-Marché feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Chazelles-Lyon.
About 764 mm of rain a year
June is the wettest month and February the driest. About 22 days a year bring 10 mm or more. 99th wettest of 118 towns of 2,500+ in Rhône.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Étienne-Bouthéon
A frosty town: 75 frosts and 54 days of 25°C a year
On about 75 nights a year the air drops to 0°C or below, and on about 13 days it stays below freezing all day. About 54 days a year reach 25°C, and 13 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Chazelles-Lyon: 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 Chazelles-Lyon
Chazelles-Lyon is 2.5 km south-west of Grézieu-le-Marché. Every figure on this page is the station’s, not a measurement in Grézieu-le-Marché itself.
| Station (Météo-France number) | Chazelles-Lyon (42059001) |
| Distance from the town | 2.5 km south-west |
| Station altitude | 632 m |
| Town altitude (its center) | 661 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Étienne-Bouthéon, 16 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 Grézieu-le-Marché 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 Rhône.
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 |
|---|---|---|---|---|
| Grézieu-le-Marché | Chazelles-Lyon | 25.2°C | −0.7°C | 764 mm |
| Chazelles-sur-Lyon 3.1 km | same station | 25.2°C about the same | −0.7°C about the same | 764 mm |
| Saint-Symphorien-sur-Coise 4 km | Saint-Symphorien-C | 25.8°C 0.6°C warmer | −1.1°C about the same | 861 mm |
| Saint-Galmier 11 km | Saint-Étienne-Bouthéon | 26.9°C 1.7°C warmer | 0.3°C 1°C milder | 728 mm |
| Saint-Martin-en-Haut 11 km | Saint-Symphorien-C | 25.8°C 0.6°C warmer | −1.1°C about the same | 861 mm |
| Montrond-les-Bains 14 km | Feurs | 27.3°C 2.1°C warmer | 0.2°C 0.9°C milder | 650 mm |
| Veauche 15 km | Saint-Étienne-Bouthéon | 26.9°C 1.7°C warmer | 0.3°C 1°C milder | 728 mm |
Grézieu-le-Marché weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Chazelles-Lyon station; sunshine at Saint-Étienne-Bouthéon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.9°C | −0.7°C | 2.6°C | 42 mm | 81 |
| February | 7.1°C | −0.7°C | 3.2°C | 35 mm | 109 |
| March | 11.3°C | 1.8°C | 6.6°C | 37 mm | 162 |
| April | 14.6°C | 4.4°C | 9.5°C | 57 mm | 186 |
| May | 18.6°C | 8.2°C | 13.4°C | 82 mm | 214 |
| June | 22.9°C | 11.9°C | 17.4°C | 85 mm | 241 |
| July | 25.2°C | 13.8°C | 19.5°C | 76 mm | 275 |
| August | 25.1°C | 13.6°C | 19.4°C | 75 mm | 259 |
| September | 20.4°C | 10.0°C | 15.2°C | 71 mm | 193 |
| October | 15.5°C | 7.1°C | 11.3°C | 81 mm | 135 |
| November | 9.8°C | 2.8°C | 6.3°C | 78 mm | 88 |
| December | 6.6°C | 0.1°C | 3.3°C | 46 mm | 76 |
| Year | 15.3°C | 6.0°C | 10.6°C | 764 mm | 2,018 |
Where Grézieu-le-Marché’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Chazelles-Lyon, 2.5 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, 16 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 Rhône.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Grézieu-le-Marché’s climate
How warm does Grézieu-le-Marché get in summer?
July is the warmest month, with average highs of 25.2°C. About 54 days a year reach 25°C, fewer than 63% of mainland French towns, and about 13 reach 30°C.
How cold does Grézieu-le-Marché get in winter?
January nights average −0.7°C. The air drops to 0°C or below on about 75 nights a year, and about 13 days a year stay below freezing all day.
How much rain does Grézieu-le-Marché get?
About 764 mm a year, more than 52% of mainland French towns. June is the wettest month (85 mm) and February the driest (35 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Étienne-Bouthéon (16 km away), averages 2,018 hours of sunshine a year.
Are these figures for Grézieu-le-Marché itself?
No: they are the normals of the Météo-France station matched to Grézieu-le-Marché, Chazelles-Lyon, 2.5 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 CHAZELLES-LYON, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Grézieu-le-Marché →
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.