Aizenay is wetter than 82% of mainland French towns: 929 mm of rain a year
On a normal July day the thermometer tops out near 25.9°C. Its January nights stay gentler than in 75% of mainland French towns. Only 24°C separates winter nights from summer afternoons. Keep the boiler serviced for the months from November to March, which average under 10°C.
These are the figures of Météo-France’s Palluau station, 7.4 km north.
A year in Aizenay at a glance
Each month’s typical high and low in °C, at the Palluau station.
What a year in Aizenay feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Palluau.
About 929 mm of rain a year
November is the wettest month and July the driest. About 30 days a year bring 10 mm or more. 13th wettest of 75 towns of 2,500+ in Vendée.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at La Roche-sur-Yon
37 frosts and 59 days of 25°C a year
On about 37 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 59 days a year reach 25°C, and 17 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Palluau: 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 Palluau
Palluau is 7.4 km north of Aizenay. Every figure on this page is the station’s, not a measurement in Aizenay itself.
| Station (Météo-France number) | Palluau (85169002) |
| Distance from the town | 7.4 km north |
| Station altitude | 51 m |
| Town altitude (its center) | 65 m |
| Period | 1991–2020 |
| Sunshine measured at | La Roche-sur-Yon, 18 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 Aizenay 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 |
|---|---|---|---|---|
| Aizenay | Palluau | 25.9°C | 3.1°C | 929 mm |
| Le Poiré-sur-Vie 8.9 km | same station | 25.9°C about the same | 3.1°C about the same | 929 mm |
| Venansault 9.2 km | La Mothe Achard | 25.1°C 0.8°C cooler | 3.8°C 0.7°C milder | 959 mm |
| Mouilleron-le-Captif 12 km | La Roche-sur-Yon | 24.9°C 1°C cooler | 3.2°C about the same | 886 mm |
| Coëx 12 km | La Mothe Achard | 25.1°C 0.8°C cooler | 3.8°C 0.7°C milder | 959 mm |
| Saint-Christophe-du-Ligneron 14 km | same station | 25.9°C about the same | 3.1°C about the same | 929 mm |
| Sainte-Flaive-des-Loups 14 km | La Mothe Achard | 25.1°C 0.8°C cooler | 3.8°C 0.7°C milder | 959 mm |
Aizenay weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Palluau station; sunshine at La Roche-sur-Yon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.5°C | 3.1°C | 6.3°C | 100 mm | 74 |
| February | 10.6°C | 2.6°C | 6.6°C | 80 mm | 106 |
| March | 13.7°C | 4.2°C | 8.9°C | 67 mm | 151 |
| April | 16.5°C | 5.6°C | 11.0°C | 69 mm | 184 |
| May | 20.1°C | 9.0°C | 14.5°C | 66 mm | 211 |
| June | 23.7°C | 11.8°C | 17.7°C | 49 mm | 229 |
| July | 25.9°C | 13.4°C | 19.7°C | 47 mm | 241 |
| August | 26.2°C | 13.3°C | 19.7°C | 55 mm | 236 |
| September | 23.0°C | 10.9°C | 17.0°C | 69 mm | 199 |
| October | 18.0°C | 9.3°C | 13.6°C | 101 mm | 129 |
| November | 13.1°C | 5.8°C | 9.4°C | 114 mm | 89 |
| December | 10.0°C | 3.5°C | 6.8°C | 112 mm | 74 |
| Year | 17.5°C | 7.7°C | 12.6°C | 929 mm | 1,922 |
Where Aizenay’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Palluau, 7.4 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 Roche-sur-Yon, 18 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 Aizenay’s climate
How warm does Aizenay get in summer?
August is the warmest month, with average highs of 26.2°C. About 59 days a year reach 25°C, fewer than 54% of mainland French towns, and about 17 reach 30°C.
How cold does Aizenay get in winter?
February nights average 2.6°C. The air drops to 0°C or below on about 37 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Aizenay get?
About 929 mm a year, more than 82% of mainland French towns. November is the wettest month (114 mm) and July the driest (47 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, La Roche-sur-Yon (18 km away), averages 1,922 hours of sunshine a year.
Are these figures for Aizenay itself?
No: they are the normals of the Météo-France station matched to Aizenay, Palluau, 7.4 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 PALLUAU, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Aizenay →
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.