Warm afternoons come to La Roche-Posay more often than to 82% of mainland French towns
The depth of winter brings overnight lows near 1.5°C. From frosty January to warm July, readings climb 27°C. About 61 nights a year bring a frost, more than in 82% of mainland French towns. For walks and days out, May, June and September bring highs of 22–26°C.
These are the figures of Météo-France’s Martizay station, 17 km east.
A year in La Roche-Posay at a glance
Each month’s typical high and low in °C, at the Martizay station.
What a year in La Roche-Posay feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Martizay.
About 774 mm of rain a year
December is the wettest month and July the driest. About 25 days a year bring 10 mm or more. 10th wettest of 37 towns of 2,500+ in Vienne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montmorillon
A frosty town: 61 frosts and 91 days of 25°C a year
On about 61 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 91 days a year reach 25°C, and 32 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Martizay: 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 Martizay
Martizay is 17 km east of La Roche-Posay. Every figure on this page is the station’s, not a measurement in La Roche-Posay itself.
| Station (Météo-France number) | Martizay (36113001) |
| Distance from the town | 17 km east |
| Station altitude | 80 m |
| Town altitude (its center) | 104 m |
| Period | 1991–2020 |
| Nearest station of any kind | 9.1 km |
| Sunshine measured at | Montmorillon, 41 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 La Roche-Posay 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 Vienne.
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 |
|---|---|---|---|---|
| La Roche-Posay | Martizay | 28.0°C | 1.5°C | 774 mm |
| Châtellerault 21 km | Courcoué | 26.8°C 1.2°C cooler | 2.5°C 1°C milder | 688 mm |
| Dangé-Saint-Romain 23 km | Courcoué | 26.8°C 1.2°C cooler | 2.5°C 1°C milder | 688 mm |
| Descartes 24 km | Ferrière-Larçon | 26.1°C 1.9°C cooler | 2.3°C 0.8°C milder | 710 mm |
| Naintré 25 km | Neuville de Poi | 27.2°C 0.8°C cooler | 2.2°C 0.7°C milder | 705 mm |
| Le Blanc 26 km | Le Blanc | 27.7°C about the same | 2.5°C 1°C milder | 776 mm |
| Thuré 26 km | Courcoué | 26.8°C 1.2°C cooler | 2.5°C 1°C milder | 688 mm |
La Roche-Posay weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Martizay station; sunshine at Montmorillon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.4°C | 1.5°C | 4.9°C | 70 mm | 71 |
| February | 10.2°C | 0.7°C | 5.5°C | 58 mm | 104 |
| March | 14.6°C | 2.8°C | 8.7°C | 56 mm | 160 |
| April | 18.0°C | 4.6°C | 11.3°C | 60 mm | 191 |
| May | 21.9°C | 8.4°C | 15.1°C | 68 mm | 216 |
| June | 25.6°C | 11.9°C | 18.7°C | 57 mm | 234 |
| July | 28.0°C | 13.5°C | 20.7°C | 51 mm | 259 |
| August | 28.0°C | 13.0°C | 20.5°C | 56 mm | 237 |
| September | 23.8°C | 9.7°C | 16.7°C | 59 mm | 205 |
| October | 18.3°C | 7.6°C | 13.0°C | 76 mm | 136 |
| November | 12.1°C | 4.0°C | 8.1°C | 81 mm | 81 |
| December | 8.7°C | 1.9°C | 5.3°C | 81 mm | 76 |
| Year | 18.1°C | 6.6°C | 12.4°C | 774 mm | 1,969 |
Where La Roche-Posay’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Martizay, 17 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, Montmorillon, 41 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 Vienne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about La Roche-Posay’s climate
How warm does La Roche-Posay get in summer?
July is the warmest month, with average highs of 28.0°C. About 91 days a year reach 25°C, more than 82% of mainland French towns, and about 32 reach 30°C.
How cold does La Roche-Posay get in winter?
February nights average 0.7°C. The air drops to 0°C or below on about 61 nights a year, and about 3 days a year stay below freezing all day.
How much rain does La Roche-Posay get?
About 774 mm a year, more than 54% of mainland French towns. December is the wettest month (81 mm) and July the driest (51 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montmorillon (41 km away), averages 1,969 hours of sunshine a year.
Are these figures for La Roche-Posay itself?
No: they are the normals of the Météo-France station matched to La Roche-Posay, Martizay, 17 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 MARTIZAY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for La Roche-Posay →
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.