More rain falls on Saint-Martin-le-Colonel than on 88% of mainland French towns: 1,024 mm a year
July afternoons average 28.2°C. Summer afternoons here are warmer than in 81% of mainland French towns. From frosty January to warm July, readings climb 28°C. Central heating does most of its work from November to March, in months below 10°C on average.
These are the figures of Météo-France’s Rochefort-Samson station, 8.8 km west.
A year in Saint-Martin-le-Colonel at a glance
Each month’s typical high and low in °C, at the Rochefort-Samson station.
What a year in Saint-Martin-le-Colonel feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Rochefort-Samson.
About 1,024 mm of rain a year
October is the wettest month and February the driest. About 32 days a year bring 10 mm or more. 2nd wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Grenoble-Saint-Geoirs
48 frosts and 81 days of 25°C a year
On about 48 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 81 days a year reach 25°C, and 28 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Rochefort-Samson: 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 Rochefort-Samson
Rochefort-Samson is 8.8 km west of Saint-Martin-le-Colonel. Every figure on this page is the station’s, not a measurement in Saint-Martin-le-Colonel itself.
| Station (Météo-France number) | Rochefort-Samson (26273002) |
| Distance from the town | 8.8 km west |
| Station altitude | 368 m |
| Town altitude (its center) | 379 m |
| Period | 1991–2020 |
| Nearest station of any kind | 2.9 km |
| Sunshine measured at | Grenoble-Saint-Geoirs, 42 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-Martin-le-Colonel 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Saint-Martin-le-Colonel | Rochefort-Samson | 28.2°C | 0.6°C | 1,024 mm |
| Saint-Jean-en-Royans 3.7 km | Saint-Jean-en-Roya | 28.5°C about the same | −0.1°C 0.7°C colder | 1,136 mm |
| Chatuzange-le-Goubet 15 km | Romans | 29.3°C 1.1°C warmer | 0.8°C about the same | 877 mm |
| Chatte 17 km | Chatte | 28.3°C about the same | −0.5°C 1.1°C colder | 968 mm |
| Bourg-de-Péage 18 km | Romans | 29.3°C 1.1°C warmer | 0.8°C about the same | 877 mm |
| Saint-Marcellin 19 km | Chatte | 28.3°C about the same | −0.5°C 1.1°C colder | 968 mm |
| Romans-sur-Isère 19 km | Romans | 29.3°C 1.1°C warmer | 0.8°C about the same | 877 mm |
Saint-Martin-le-Colonel weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Rochefort-Samson station; sunshine at Grenoble-Saint-Geoirs.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.2°C | 0.6°C | 3.9°C | 63 mm | 91 |
| February | 8.6°C | 0.8°C | 4.7°C | 51 mm | 112 |
| March | 13.2°C | 3.4°C | 8.3°C | 65 mm | 173 |
| April | 16.7°C | 5.8°C | 11.3°C | 92 mm | 190 |
| May | 20.8°C | 9.6°C | 15.2°C | 106 mm | 221 |
| June | 25.2°C | 13.1°C | 19.1°C | 80 mm | 258 |
| July | 28.2°C | 15.3°C | 21.7°C | 73 mm | 292 |
| August | 27.9°C | 15.3°C | 21.6°C | 74 mm | 263 |
| September | 22.7°C | 11.8°C | 17.2°C | 114 mm | 199 |
| October | 17.4°C | 8.7°C | 13.1°C | 126 mm | 140 |
| November | 11.3°C | 4.3°C | 7.8°C | 117 mm | 91 |
| December | 7.8°C | 1.4°C | 4.6°C | 63 mm | 78 |
| Year | 17.2°C | 7.5°C | 12.4°C | 1,024 mm | 2,108 |
Where Saint-Martin-le-Colonel’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Rochefort-Samson, 8.8 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, Grenoble-Saint-Geoirs, 42 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 Saint-Martin-le-Colonel’s climate
How warm does Saint-Martin-le-Colonel get in summer?
July is the warmest month, with average highs of 28.2°C. About 81 days a year reach 25°C, more than 72% of mainland French towns, and about 28 reach 30°C.
How cold does Saint-Martin-le-Colonel get in winter?
January nights average 0.6°C. The air drops to 0°C or below on about 48 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Saint-Martin-le-Colonel get?
About 1,024 mm a year, more than 88% of mainland French towns. October is the wettest month (126 mm) and February the driest (51 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Grenoble-Saint-Geoirs (42 km away), averages 2,108 hours of sunshine a year.
Are these figures for Saint-Martin-le-Colonel itself?
No: they are the normals of the Météo-France station matched to Saint-Martin-le-Colonel, Rochefort-Samson, 8.8 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 ROCHEFORT-SAMSON_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Martin-le-Colonel →
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.