Summer warmth: Isle-Saint-Georges logs more 25-degree days than 81% of mainland French towns
January mornings start at about 2.9°C. A year here swings 26°C from midwinter lows to midsummer highs. By rainfall alone, it ranks wetter than 80% of mainland French towns. Frost greets about 33 mornings a year, so leave time to clear the car.
Figures from Météo-France’s Cadaujac-Inrae station, 7.8 km north-west.
A year in Isle-Saint-Georges at a glance
Each month’s typical high and low in °C, at the Cadaujac-Inrae station.
What a year in Isle-Saint-Georges feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Cadaujac-Inrae.
About 918 mm of rain a year
November is the wettest month and July the driest. About 31 days a year bring 10 mm or more. 38th wettest of 113 towns of 2,500+ in Gironde.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Bordeaux-Mérignac
33 frosts and 90 days of 25°C a year
On about 33 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 90 days a year reach 25°C, and 28 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Cadaujac-Inrae: 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 Cadaujac-Inrae
Cadaujac-Inrae is 7.8 km north-west of Isle-Saint-Georges. Every figure on this page is the station’s, not a measurement in Isle-Saint-Georges itself.
| Station (Météo-France number) | Cadaujac-Inrae (33080001) |
| Distance from the town | 7.8 km north-west |
| Station altitude | 25 m |
| Town altitude (its center) | 4 m |
| Period | 1991–2020 |
| Sunshine measured at | Bordeaux-Mérignac, 21 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 Isle-Saint-Georges 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 Gironde.
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 |
|---|---|---|---|---|
| Isle-Saint-Georges | Cadaujac-Inrae | 27.6°C | 2.9°C | 918 mm |
| Saint-Médard-d'Eyrans 3.7 km | same station | 27.6°C about the same | 2.9°C about the same | 918 mm |
| Castres-Gironde 4.2 km | same station | 27.6°C about the same | 2.9°C about the same | 918 mm |
| Saint-Caprais-de-Bordeaux 4.5 km | same station | 27.6°C about the same | 2.9°C about the same | 918 mm |
| Camblanes-et-Meynac 4.6 km | same station | 27.6°C about the same | 2.9°C about the same | 918 mm |
| Portets 5.4 km | same station | 27.6°C about the same | 2.9°C about the same | 918 mm |
| Cadaujac 5.7 km | same station | 27.6°C about the same | 2.9°C about the same | 918 mm |
Isle-Saint-Georges weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cadaujac-Inrae station; sunshine at Bordeaux-Mérignac.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 10.5°C | 2.9°C | 6.7°C | 87 mm | 90 |
| February | 12.2°C | 2.6°C | 7.4°C | 65 mm | 117 |
| March | 15.8°C | 4.9°C | 10.3°C | 61 mm | 170 |
| April | 18.4°C | 7.2°C | 12.8°C | 76 mm | 186 |
| May | 22.1°C | 10.6°C | 16.4°C | 75 mm | 221 |
| June | 25.5°C | 13.6°C | 19.5°C | 72 mm | 238 |
| July | 27.6°C | 15.2°C | 21.4°C | 51 mm | 256 |
| August | 28.1°C | 15.1°C | 21.6°C | 64 mm | 249 |
| September | 24.6°C | 12.1°C | 18.3°C | 76 mm | 209 |
| October | 19.9°C | 9.6°C | 14.7°C | 79 mm | 150 |
| November | 14.1°C | 5.7°C | 9.9°C | 112 mm | 100 |
| December | 11.0°C | 3.5°C | 7.2°C | 101 mm | 84 |
| Year | 19.2°C | 8.6°C | 13.8°C | 918 mm | 2,070 |
Where Isle-Saint-Georges’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cadaujac-Inrae, 7.8 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, Bordeaux-Mérignac, 21 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 Gironde.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Isle-Saint-Georges’s climate
How warm does Isle-Saint-Georges get in summer?
August is the warmest month, with average highs of 28.1°C. About 90 days a year reach 25°C, more than 81% of mainland French towns, and about 28 reach 30°C.
How cold does Isle-Saint-Georges get in winter?
February nights average 2.6°C. The air drops to 0°C or below on about 33 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Isle-Saint-Georges get?
About 918 mm a year, more than 80% of mainland French towns. November is the wettest month (112 mm) and July the driest (51 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Bordeaux-Mérignac (21 km away), averages 2,070 hours of sunshine a year.
Are these figures for Isle-Saint-Georges itself?
No: they are the normals of the Météo-France station matched to Isle-Saint-Georges, Cadaujac-Inrae, 7.8 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 CADAUJAC-INRAE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Isle-Saint-Georges →
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.