Nights stay kind in Corme-Écluse each January, milder than in 88% of mainland French towns
Sunny July days climb to about 25.4°C. Winter and summer sit 22°C apart. Its yearly rainfall tops that of 71% of mainland French towns. Expect about 24 frosty starts a year, nights when the air falls below freezing.
These are the figures of Météo-France’s Royan-Medis station, 8.8 km west.
A year in Corme-Écluse at a glance
Each month’s typical high and low in °C, at the Royan-Medis station.
What a year in Corme-Écluse feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Royan-Medis.
About 856 mm of rain a year
November is the wettest month and July the driest. About 27 days a year bring 10 mm or more. 8th wettest of 54 towns of 2,500+ in Charente-Maritime.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Cognac
24 frosts and 56 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 56 days a year reach 25°C, and 15 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Royan-Medis: 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 Royan-Medis
Royan-Medis is 8.8 km west of Corme-Écluse. Every figure on this page is the station’s, not a measurement in Corme-Écluse itself.
| Station (Météo-France number) | Royan-Medis (17306004) |
| Distance from the town | 8.8 km west |
| Station altitude | 12 m |
| Town altitude (its center) | 15 m |
| Period | 1991–2020 |
| Sunshine measured at | Cognac, 43 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 Corme-Écluse 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 |
|---|---|---|---|---|
| Corme-Écluse | Royan-Medis | 25.4°C | 3.7°C | 856 mm |
| Semussac 5.5 km | same station | 25.4°C about the same | 3.7°C about the same | 856 mm |
| Saujon 7.1 km | same station | 25.4°C about the same | 3.7°C about the same | 856 mm |
| Médis 7.9 km | same station | 25.4°C about the same | 3.7°C about the same | 856 mm |
| Meschers-sur-Gironde 10 km | same station | 25.4°C about the same | 3.7°C about the same | 856 mm |
| Saint-Georges-de-Didonne 10 km | same station | 25.4°C about the same | 3.7°C about the same | 856 mm |
| Saint-Sulpice-de-Royan 12 km | same station | 25.4°C about the same | 3.7°C about the same | 856 mm |
Corme-Écluse weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Royan-Medis station; sunshine at Cognac.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.7°C | 3.7°C | 6.7°C | 87 mm | 82 |
| February | 11.1°C | 3.5°C | 7.3°C | 60 mm | 116 |
| March | 14.3°C | 5.4°C | 9.8°C | 60 mm | 166 |
| April | 16.8°C | 7.3°C | 12.1°C | 69 mm | 187 |
| May | 20.4°C | 10.8°C | 15.6°C | 63 mm | 221 |
| June | 23.6°C | 13.8°C | 18.7°C | 54 mm | 237 |
| July | 25.4°C | 15.4°C | 20.4°C | 43 mm | 257 |
| August | 25.7°C | 15.2°C | 20.5°C | 50 mm | 250 |
| September | 23.1°C | 12.6°C | 17.8°C | 71 mm | 204 |
| October | 18.8°C | 10.5°C | 14.6°C | 89 mm | 141 |
| November | 13.6°C | 6.8°C | 10.2°C | 107 mm | 97 |
| December | 10.4°C | 4.3°C | 7.4°C | 103 mm | 85 |
| Year | 17.7°C | 9.1°C | 13.4°C | 856 mm | 2,043 |
Where Corme-Écluse’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Royan-Medis, 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, Cognac, 43 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 Corme-Écluse’s climate
How warm does Corme-Écluse get in summer?
August is the warmest month, with average highs of 25.7°C. About 56 days a year reach 25°C, fewer than 59% of mainland French towns, and about 15 reach 30°C.
How cold does Corme-Écluse get in winter?
February nights average 3.5°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 Corme-Écluse get?
About 856 mm a year, more than 71% of mainland French towns. November is the wettest month (107 mm) and July the driest (43 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Cognac (43 km away), averages 2,043 hours of sunshine a year.
Are these figures for Corme-Écluse itself?
No: they are the normals of the Météo-France station matched to Corme-Écluse, Royan-Medis, 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 ROYAN-MEDIS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Corme-Écluse →
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.