A middle-of-the-road climate: Maillezais is close to most mainland French towns on every count
A typical year brings 837 mm of rain, with July afternoons around 27.0°C and January nights around 2.8°C. Warm days come often: about 77 a year reach 25°C, more than in 70% of mainland French towns. The rainiest month is November; the driest is July. The outdoor season runs from May to July and September to October, with highs of 19–27°C.
These are the figures of Météo-France’s Prin-Deyrançon station, 18 km south-east.
A year in Maillezais at a glance
Each month’s typical high and low in °C, at the Prin-Deyrançon station.
What a year in Maillezais feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Prin-Deyrançon.
About 837 mm of rain a year
November is the wettest month and July the driest. About 26 days a year bring 10 mm or more. 42nd wettest of 75 towns of 2,500+ in Vendée.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Niort
45 frosts and 77 days of 25°C a year
On about 45 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 77 days a year reach 25°C, and 24 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Prin-Deyrançon: 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 Prin-Deyrançon
Prin-Deyrançon is 18 km south-east of Maillezais. Every figure on this page is the station’s, not a measurement in Maillezais itself.
| Station (Météo-France number) | Prin-Deyrançon (79220001) |
| Distance from the town | 18 km south-east |
| Station altitude | 14 m |
| Town altitude (its center) | 17 m |
| Period | 1991–2019 (the station’s own record) |
| Sunshine measured at | Niort, 27 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 Maillezais 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 |
|---|---|---|---|---|
| Maillezais | Prin-Deyrançon | 27.0°C | 2.8°C | 837 mm |
| Benet 10 km | Niort | 26.3°C 0.7°C cooler | 2.8°C about the same | 847 mm |
| Fontenay-le-Comte 12 km | Marans | 26.3°C 0.7°C cooler | 3.4°C 0.6°C milder | 740 mm |
| Saint-Jean-de-Liversay 16 km | Marans | 26.3°C 0.7°C cooler | 3.4°C 0.6°C milder | 740 mm |
| Magné 16 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
| Mauzé-sur-le-Mignon 20 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
| Frontenay-Rohan-Rohan 20 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
Maillezais weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Prin-Deyrançon station; sunshine at Niort.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.3°C | 2.8°C | 6.0°C | 85 mm | 76 |
| February | 10.8°C | 2.1°C | 6.4°C | 63 mm | 108 |
| March | 14.6°C | 3.9°C | 9.2°C | 63 mm | 160 |
| April | 17.4°C | 5.6°C | 11.5°C | 65 mm | 187 |
| May | 21.3°C | 9.2°C | 15.2°C | 64 mm | 219 |
| June | 24.9°C | 12.3°C | 18.6°C | 51 mm | 241 |
| July | 27.0°C | 13.9°C | 20.4°C | 43 mm | 257 |
| August | 27.2°C | 13.7°C | 20.4°C | 54 mm | 248 |
| September | 23.8°C | 10.8°C | 17.3°C | 64 mm | 207 |
| October | 18.8°C | 8.9°C | 13.8°C | 91 mm | 134 |
| November | 13.1°C | 5.4°C | 9.2°C | 100 mm | 93 |
| December | 9.7°C | 3.0°C | 6.4°C | 96 mm | 77 |
| Year | 18.2°C | 7.6°C | 12.9°C | 837 mm | 2,006 |
Where Maillezais’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Prin-Deyrançon, 18 km away: statistics for 1991–2020 (the station’s own years, 1991–2019, where its record is shorter).
- 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, Niort, 27 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 Maillezais’s climate
How warm does Maillezais get in summer?
August is the warmest month, with average highs of 27.2°C. About 77 days a year reach 25°C, more than 70% of mainland French towns, and about 24 reach 30°C.
How cold does Maillezais get in winter?
February nights average 2.1°C. The air drops to 0°C or below on about 45 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Maillezais get?
About 837 mm a year, more than 68% of mainland French towns. November is the wettest month (100 mm) and July the driest (43 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Niort (27 km away), averages 2,006 hours of sunshine a year.
Are these figures for Maillezais itself?
No: they are the normals of the Météo-France station matched to Maillezais, Prin-Deyrançon, 18 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 PRIN-DEYRANCON, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Maillezais →
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.