La Garnache has milder winter nights than 85% of mainland French towns
On a normal July day the thermometer tops out near 25.0°C. Its yearly rainfall tops that of 73% of mainland French towns. The rainiest month is November; the driest is August. Keep the boiler serviced for the months from November to March, which average under 10°C.
Figures from Météo-France’s Saint-Meme-le-Tenu station, 13 km north.
A year in La Garnache at a glance
Each month’s typical high and low in °C, at the Saint-Meme-le-Tenu station.
What a year in La Garnache feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Meme-le-Tenu.
About 866 mm of rain a year
November is the wettest month and August the driest. About 27 days a year bring 10 mm or more. 38th wettest of 75 towns of 2,500+ in Vendée.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Nantes-Bouguenais
34 frosts and 49 days of 25°C a year
On about 34 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 49 days a year reach 25°C, and 13 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Meme-le-Tenu: 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 Saint-Meme-le-Tenu
Saint-Meme-le-Tenu is 13 km north of La Garnache. Every figure on this page is the station’s, not a measurement in La Garnache itself.
| Station (Météo-France number) | Saint-Meme-le-Tenu (44181001) |
| Distance from the town | 13 km north |
| Station altitude | 4 m |
| Town altitude (its center) | 36 m |
| Period | 1991–2020 |
| Sunshine measured at | Nantes-Bouguenais, 33 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 Garnache 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 Vendée.
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 |
|---|---|---|---|---|
| La Garnache | Saint-Meme-le-Tenu | 25.0°C | 3.5°C | 866 mm |
| Challans 6.7 km | Le Perrier | 24.1°C 0.9°C cooler | 4.1°C 0.6°C milder | 762 mm |
| Sallertaine 8.6 km | Le Perrier | 24.1°C 0.9°C cooler | 4.1°C 0.6°C milder | 762 mm |
| Saint-Christophe-du-Ligneron 9.8 km | Palluau | 25.9°C 0.9°C warmer | 3.1°C about the same | 929 mm |
| Soullans 12 km | Le Perrier | 24.1°C 0.9°C cooler | 4.1°C 0.6°C milder | 762 mm |
| Machecoul-Saint-Même 12 km | same station | 25.0°C about the same | 3.5°C about the same | 866 mm |
| Saint-Gervais 12 km | Le Perrier | 24.1°C 0.9°C cooler | 4.1°C 0.6°C milder | 762 mm |
La Garnache weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Meme-le-Tenu station; sunshine at Nantes-Bouguenais.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.7°C | 3.5°C | 6.6°C | 91 mm | 73 |
| February | 10.7°C | 3.0°C | 6.9°C | 70 mm | 102 |
| March | 13.7°C | 4.7°C | 9.2°C | 62 mm | 147 |
| April | 16.4°C | 6.2°C | 11.3°C | 67 mm | 183 |
| May | 20.0°C | 9.6°C | 14.8°C | 61 mm | 203 |
| June | 23.2°C | 12.6°C | 17.9°C | 51 mm | 213 |
| July | 25.0°C | 14.0°C | 19.5°C | 50 mm | 229 |
| August | 25.2°C | 13.7°C | 19.5°C | 50 mm | 233 |
| September | 22.6°C | 11.2°C | 16.9°C | 68 mm | 199 |
| October | 18.0°C | 9.3°C | 13.6°C | 97 mm | 123 |
| November | 13.3°C | 5.9°C | 9.6°C | 101 mm | 91 |
| December | 10.3°C | 3.8°C | 7.0°C | 99 mm | 78 |
| Year | 17.3°C | 8.1°C | 12.7°C | 866 mm | 1,873 |
Where La Garnache’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Meme-le-Tenu, 13 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, Nantes-Bouguenais, 33 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 Vendée.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about La Garnache’s climate
How warm does La Garnache get in summer?
August is the warmest month, with average highs of 25.2°C. About 49 days a year reach 25°C, fewer than 69% of mainland French towns, and about 13 reach 30°C.
How cold does La Garnache get in winter?
February nights average 3.0°C. The air drops to 0°C or below on about 34 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does La Garnache get?
About 866 mm a year, more than 73% of mainland French towns. November is the wettest month (101 mm) and August the driest (50 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Nantes-Bouguenais (33 km away), averages 1,873 hours of sunshine a year.
Are these figures for La Garnache itself?
No: they are the normals of the Météo-France station matched to La Garnache, Saint-Meme-le-Tenu, 13 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 ST-MEME-LE-TENU, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for La Garnache →
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.