July in Saint-Thomé runs hotter than in 91% of mainland French towns
On a normal January night the air cools to about 2.6°C. By frosts alone, it ranks gentler than 85% of mainland French towns. October is the wettest month, February the driest. The heating season runs November to February: each of those months averages under 10°C.
Figures from Météo-France’s Montélimar station, 12 km north-east.
A year in Saint-Thomé at a glance
Each month’s typical high and low in °C, at the Montélimar station.
What a year in Saint-Thomé feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Montélimar.
About 920 mm of rain a year
October is the wettest month and February the driest. About 27 days a year bring 10 mm or more. 10th wettest of 22 towns of 2,500+ in Ardèche.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montélimar
24 frosts and 100 days of 25°C a year
On about 24 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 100 days a year reach 25°C, and 43 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Montélimar: 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 Montélimar
Montélimar is 12 km north-east of Saint-Thomé. Every figure on this page is the station’s, not a measurement in Saint-Thomé itself.
| Station (Météo-France number) | Montélimar (26198001) |
| Distance from the town | 12 km north-east |
| Station altitude | 73 m |
| Town altitude (its center) | 106 m |
| Period | 1991–2020 |
| Nearest station of any kind | 5.1 km |
| Sunshine measured at | the same station |
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-Thomé 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 Ardèche.
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-Thomé | Montélimar | 29.8°C | 2.6°C | 920 mm |
| Viviers 4.7 km | Donzère | 30.9°C 1.1°C warmer | 2.4°C about the same | 826 mm |
| Le Teil 6.5 km | same station | 29.8°C about the same | 2.6°C about the same | 920 mm |
| Châteauneuf-du-Rhône 7.9 km | Donzère | 30.9°C 1.1°C warmer | 2.4°C about the same | 826 mm |
| Donzère 9.9 km | Donzère | 30.9°C 1.1°C warmer | 2.4°C about the same | 826 mm |
| Montélimar 11 km | same station | 29.8°C about the same | 2.6°C about the same | 920 mm |
| Villeneuve-de-Berg 11 km | Mirabel Sa | 29.5°C about the same | 1.2°C 1.4°C colder | 998 mm |
Saint-Thomé weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Montélimar station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.8°C | 2.6°C | 5.7°C | 69 mm | 107 |
| February | 10.5°C | 2.7°C | 6.6°C | 43 mm | 136 |
| March | 15.1°C | 5.3°C | 10.2°C | 49 mm | 200 |
| April | 18.3°C | 7.8°C | 13.1°C | 74 mm | 219 |
| May | 22.5°C | 11.6°C | 17.1°C | 78 mm | 260 |
| June | 26.9°C | 15.4°C | 21.1°C | 57 mm | 300 |
| July | 29.8°C | 17.6°C | 23.7°C | 55 mm | 330 |
| August | 29.6°C | 17.4°C | 23.5°C | 56 mm | 299 |
| September | 24.4°C | 13.9°C | 19.2°C | 116 mm | 231 |
| October | 18.9°C | 10.7°C | 14.8°C | 133 mm | 156 |
| November | 12.8°C | 6.3°C | 9.5°C | 129 mm | 110 |
| December | 9.1°C | 3.4°C | 6.2°C | 62 mm | 95 |
| Year | 18.9°C | 9.6°C | 14.2°C | 920 mm | 2,441 |
Where Saint-Thomé’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Montélimar, 12 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, Montélimar, 12 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 Ardèche.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Thomé’s climate
How warm does Saint-Thomé get in summer?
July is the warmest month, with average highs of 29.8°C. About 100 days a year reach 25°C, more than 88% of mainland French towns, and about 43 reach 30°C.
How cold does Saint-Thomé get in winter?
January nights average 2.6°C. The air drops to 0°C or below on about 24 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Saint-Thomé get?
About 920 mm a year, more than 80% of mainland French towns. October is the wettest month (133 mm) and February the driest (43 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montélimar (12 km away), averages 2,441 hours of sunshine a year.
Are these figures for Saint-Thomé itself?
No: they are the normals of the Météo-France station matched to Saint-Thomé, Montélimar, 12 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 MONTELIMAR, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Thomé →
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.