July in Chanos-Curson runs hotter than in 91% of mainland French towns
The depth of winter brings overnight lows near 1.4°C. From frosty January to warm July, readings climb 28°C. It is a wet place: more rain falls here than on 73% of mainland French towns. An umbrella earns its place on about 89 days a year with 1 mm of rain or more.
Figures from Météo-France’s Mercurol station, 2.6 km west.
A year in Chanos-Curson at a glance
Each month’s typical high and low in °C, at the Mercurol station.
What a year in Chanos-Curson feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Mercurol.
About 864 mm of rain a year
October is the wettest month and February the driest. About 25 days a year bring 10 mm or more. 29th wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Colombier Jeune Rad
39 frosts and 101 days of 25°C a year
On about 39 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 101 days a year reach 25°C, and 42 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Mercurol: 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 Mercurol
Mercurol is 2.6 km west of Chanos-Curson. Every figure on this page is the station’s, not a measurement in Chanos-Curson itself.
| Station (Météo-France number) | Mercurol (26179001) |
| Distance from the town | 2.6 km west |
| Station altitude | 153 m |
| Town altitude (its center) | 167 m |
| Period | 1993–2020 (the station’s own record) |
| Sunshine measured at | Colombier Jeune Rad, 20 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 Chanos-Curson 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 Drôme.
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 |
|---|---|---|---|---|
| Chanos-Curson | Mercurol | 29.6°C | 1.4°C | 864 mm |
| Mercurol-Veaunes 2.4 km | same station | 29.6°C about the same | 1.4°C about the same | 864 mm |
| Tain-l'Hermitage 5.6 km | same station | 29.6°C about the same | 1.4°C about the same | 864 mm |
| Châteauneuf-sur-Isère 5.9 km | Romans | 29.3°C about the same | 0.8°C 0.6°C colder | 877 mm |
| Tournon-sur-Rhône 6.4 km | same station | 29.6°C about the same | 1.4°C about the same | 864 mm |
| Pont-de-l'Isère 6.9 km | same station | 29.6°C about the same | 1.4°C about the same | 864 mm |
| La Roche-de-Glun 7.1 km | same station | 29.6°C about the same | 1.4°C about the same | 864 mm |
Chanos-Curson weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Mercurol station; sunshine at Colombier Jeune Rad.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.0°C | 1.4°C | 4.7°C | 58 mm | 73 |
| February | 9.9°C | 1.7°C | 5.8°C | 41 mm | 99 |
| March | 14.8°C | 4.2°C | 9.5°C | 42 mm | 168 |
| April | 18.4°C | 7.0°C | 12.7°C | 66 mm | 188 |
| May | 22.6°C | 10.9°C | 16.7°C | 80 mm | 218 |
| June | 27.0°C | 14.3°C | 20.7°C | 55 mm | 261 |
| July | 29.6°C | 16.0°C | 22.8°C | 55 mm | 282 |
| August | 29.2°C | 15.6°C | 22.4°C | 68 mm | 253 |
| September | 24.1°C | 12.0°C | 18.1°C | 102 mm | 197 |
| October | 18.9°C | 9.1°C | 14.0°C | 131 mm | 123 |
| November | 12.3°C | 4.8°C | 8.5°C | 115 mm | 81 |
| December | 8.5°C | 2.1°C | 5.3°C | 52 mm | 62 |
| Year | 18.6°C | 8.3°C | 13.4°C | 864 mm | 2,003 |
Where Chanos-Curson’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Mercurol, 2.6 km away: statistics for 1991–2020 (the station’s own years, 1993–2020, 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, Colombier Jeune Rad, 20 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 Drôme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Chanos-Curson’s climate
How warm does Chanos-Curson get in summer?
July is the warmest month, with average highs of 29.6°C. About 101 days a year reach 25°C, more than 89% of mainland French towns, and about 42 reach 30°C.
How cold does Chanos-Curson get in winter?
January nights average 1.4°C. The air drops to 0°C or below on about 39 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Chanos-Curson get?
About 864 mm a year, more than 73% of mainland French towns. October is the wettest month (131 mm) and February the driest (41 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Colombier Jeune Rad (20 km away), averages 2,003 hours of sunshine a year.
Are these figures for Chanos-Curson itself?
No: they are the normals of the Météo-France station matched to Chanos-Curson, Mercurol, 2.6 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 MERCUROL, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Chanos-Curson →
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.