Hardly any mainland French towns see softer January nights than Ars-en-Ré
July afternoons average 22.3°C. Only 17°C separates winter nights from summer afternoons. Days of 25°C are scarce: about 19 a year, fewer than in 96% of mainland French towns. Plan time outside from May to October, when highs sit at 18–23°C.
Figures from Météo-France’s Chassiron station, 20 km south-east.
A year in Ars-en-Ré at a glance
Each month’s typical high and low in °C, at the Chassiron station.
What a year in Ars-en-Ré feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Chassiron.
About 683 mm of rain a year
November is the wettest month and June the driest. About 19 days a year bring 10 mm or more. 54th 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
6 frosts and 19 days of 25°C a year
On about 6 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 19 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Chassiron: 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 Chassiron
Chassiron is 20 km south-east of Ars-en-Ré. Every figure on this page is the station’s, not a measurement in Ars-en-Ré itself.
| Station (Météo-France number) | Chassiron (17323001) |
| Distance from the town | 20 km south-east |
| Station altitude | 11 m |
| Town altitude (its center) | 4 m |
| Period | 1991–2020 |
| Sunshine measured at | La Rochelle-Île de Re, 25 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 Ars-en-Ré 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Ars-en-Ré | Chassiron | 22.3°C | 5.8°C | 683 mm |
| La Flotte 15 km | La Rochelle-Île de Re | 24.6°C 2.3°C warmer | 4.4°C 1.4°C colder | 754 mm |
| Sainte-Marie-de-Ré 16 km | La Rochelle-Île de Re | 24.6°C 2.3°C warmer | 4.4°C 1.4°C colder | 754 mm |
| La Tranche-sur-Mer 17 km | Angles | 26.7°C 4.4°C warmer | 3.2°C 2.6°C colder | 869 mm |
| L'Aiguillon-la-Presqu'île 21 km | Angles | 26.7°C 4.4°C warmer | 3.2°C 2.6°C colder | 869 mm |
| Longeville-sur-Mer 23 km | Angles | 26.7°C 4.4°C warmer | 3.2°C 2.6°C colder | 869 mm |
| Angles 24 km | Angles | 26.7°C 4.4°C warmer | 3.2°C 2.6°C colder | 869 mm |
Ars-en-Ré weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Chassiron station; sunshine at La Rochelle-Île de Re.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.7°C | 5.8°C | 7.8°C | 69 mm | 91 |
| February | 10.0°C | 5.7°C | 7.9°C | 50 mm | 131 |
| March | 12.5°C | 7.6°C | 10.1°C | 49 mm | 179 |
| April | 14.7°C | 9.6°C | 12.1°C | 53 mm | 231 |
| May | 17.8°C | 12.6°C | 15.2°C | 44 mm | 258 |
| June | 20.7°C | 15.5°C | 18.1°C | 36 mm | 253 |
| July | 22.3°C | 17.4°C | 19.8°C | 39 mm | 297 |
| August | 22.7°C | 17.7°C | 20.2°C | 42 mm | 278 |
| September | 20.9°C | 15.5°C | 18.2°C | 58 mm | 234 |
| October | 17.6°C | 12.9°C | 15.3°C | 73 mm | 155 |
| November | 13.5°C | 9.3°C | 11.4°C | 91 mm | 109 |
| December | 10.6°C | 6.5°C | 8.6°C | 82 mm | 90 |
| Year | 16.1°C | 11.3°C | 13.7°C | 683 mm | 2,303 |
Where Ars-en-Ré’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Chassiron, 20 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, 25 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 Ars-en-Ré’s climate
How warm does Ars-en-Ré get in summer?
August is the warmest month, with average highs of 22.7°C. About 19 days a year reach 25°C, fewer than 96% of mainland French towns, and about 2 reach 30°C.
How cold does Ars-en-Ré get in winter?
February nights average 5.7°C. The air drops to 0°C or below on about 6 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Ars-en-Ré get?
About 683 mm a year, less than 75% of mainland French towns. November is the wettest month (91 mm) and June the driest (36 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, La Rochelle-Île de Re (25 km away), averages 2,303 hours of sunshine a year.
Are these figures for Ars-en-Ré itself?
No: they are the normals of the Météo-France station matched to Ars-en-Ré, Chassiron, 20 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 CHASSIRON, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Ars-en-Ré →
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.