Les Mathes sits near the top of mainland French towns for mild winters
The warmest part of a July day comes in at 24.6°C on average. By warm days alone, it ranks cooler than 78% of mainland French towns. Seasons differ by 20°C, from the coldest nights to the warmest afternoons. Radiators earn their keep from December to February, the months that average under 10°C.
These are the figures of Météo-France’s Château d'Oléron station, 17 km north.
A year in Les Mathes at a glance
Each month’s typical high and low in °C, at the Château d'Oléron station.
What a year in Les Mathes feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Château d'Oléron.
About 782 mm of rain a year
November is the wettest month and July the driest. About 23 days a year bring 10 mm or more. 21st wettest of 54 towns of 2,500+ in Charente-Maritime.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at La Rochelle-Île de Re
12 frosts and 43 days of 25°C a year
On about 12 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 43 days a year reach 25°C, and 9 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Château d'Oléron: 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 Château d'Oléron
Château d'Oléron is 17 km north of Les Mathes. Every figure on this page is the station’s, not a measurement in Les Mathes itself.
| Station (Météo-France number) | Château d'Oléron (17093002) |
| Distance from the town | 17 km north |
| Station altitude | 3 m |
| Town altitude (its center) | 4 m |
| Period | 1991–2020 |
| Sunshine measured at | La Rochelle-Île de Re, 52 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 Les Mathes 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 Charente-Maritime.
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 |
|---|---|---|---|---|
| Les Mathes | Château d'Oléron | 24.6°C | 4.8°C | 782 mm |
| Arvert 4.2 km | same station | 24.6°C about the same | 4.8°C about the same | 782 mm |
| Étaules 4.5 km | Royan-Medis | 25.4°C 0.8°C warmer | 3.7°C 1.1°C colder | 856 mm |
| La Tremblade 6.9 km | same station | 24.6°C about the same | 4.8°C about the same | 782 mm |
| Breuillet 7.6 km | Royan-Medis | 25.4°C 0.8°C warmer | 3.7°C 1.1°C colder | 856 mm |
| Saint-Palais-sur-Mer 8.8 km | Royan-Medis | 25.4°C 0.8°C warmer | 3.7°C 1.1°C colder | 856 mm |
| Vaux-sur-Mer 11 km | Royan-Medis | 25.4°C 0.8°C warmer | 3.7°C 1.1°C colder | 856 mm |
Les Mathes weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Château d'Oléron station; sunshine at La Rochelle-Île de Re.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.7°C | 4.8°C | 7.2°C | 81 mm | 91 |
| February | 10.6°C | 4.7°C | 7.6°C | 58 mm | 131 |
| March | 13.5°C | 6.8°C | 10.1°C | 57 mm | 179 |
| April | 16.1°C | 9.0°C | 12.5°C | 61 mm | 231 |
| May | 19.5°C | 12.2°C | 15.9°C | 51 mm | 258 |
| June | 22.7°C | 15.1°C | 18.9°C | 43 mm | 253 |
| July | 24.6°C | 16.9°C | 20.8°C | 39 mm | 297 |
| August | 24.9°C | 17.0°C | 21.0°C | 44 mm | 278 |
| September | 22.4°C | 14.7°C | 18.6°C | 67 mm | 234 |
| October | 18.3°C | 12.1°C | 15.2°C | 87 mm | 155 |
| November | 13.5°C | 8.2°C | 10.8°C | 103 mm | 109 |
| December | 10.5°C | 5.5°C | 8.0°C | 93 mm | 90 |
| Year | 17.2°C | 10.6°C | 13.9°C | 782 mm | 2,303 |
Where Les Mathes’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Château d'Oléron, 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, La Rochelle-Île de Re, 52 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 Charente-Maritime.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Les Mathes’s climate
How warm does Les Mathes get in summer?
August is the warmest month, with average highs of 24.9°C. About 43 days a year reach 25°C, fewer than 78% of mainland French towns, and about 9 reach 30°C.
How cold does Les Mathes get in winter?
February nights average 4.7°C. The air drops to 0°C or below on about 12 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Les Mathes get?
About 782 mm a year, more than 56% of mainland French towns. November is the wettest month (103 mm) and July the driest (39 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, La Rochelle-Île de Re (52 km away), averages 2,303 hours of sunshine a year.
Are these figures for Les Mathes itself?
No: they are the normals of the Météo-France station matched to Les Mathes, Château d'Oléron, 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 CHATEAU D'OLERON, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Les Mathes →
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.