Photo: Koreller · CC BY-SA 4.0Vertou has milder winter nights than 77% of mainland French towns
On a normal July day the thermometer tops out near 26.1°C. Its yearly rainfall tops that of 71% of mainland French towns. Winter and summer sit 24°C apart. Frost greets about 35 mornings a year, so leave time to clear the car.
Figures from Météo-France’s Haie-Fouassière station, 7.3 km east.
A year in Vertou at a glance
Each month’s typical high and low in °C, at the Haie-Fouassière station.
What a year in Vertou feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Haie-Fouassière.
About 859 mm of rain a year
December is the wettest month and July the driest. About 26 days a year bring 10 mm or more. 19th wettest of 133 towns of 2,500+ in Loire-Atlantique.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Nantes-Bouguenais
35 frosts and 64 days of 25°C a year
On about 35 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 64 days a year reach 25°C, and 18 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Haie-Fouassière: 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 Haie-Fouassière
Haie-Fouassière is 7.3 km east of Vertou. Every figure on this page is the station’s, not a measurement in Vertou itself.
| Station (Météo-France number) | Haie-Fouassière (44070001) |
| Distance from the town | 7.3 km east |
| Station altitude | 20 m |
| Town altitude (its center) | 12 m |
| Period | 1991–2020 |
| Sunshine measured at | Nantes-Bouguenais, 9.9 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 Vertou 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 Loire-Atlantique.
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 |
|---|---|---|---|---|
| Vertou | Haie-Fouassière | 26.1°C | 3.2°C | 859 mm |
| Saint-Sébastien-sur-Loire 3.8 km | Nantes-Bouguenais | 25.1°C 1°C cooler | 3.4°C about the same | 820 mm |
| Les Sorinières 4 km | Nantes-Bouguenais | 25.1°C 1°C cooler | 3.4°C about the same | 820 mm |
| Basse-Goulaine 4.2 km | same station | 26.1°C about the same | 3.2°C about the same | 859 mm |
| Haute-Goulaine 5.2 km | same station | 26.1°C about the same | 3.2°C about the same | 859 mm |
| Rezé 5.4 km | Nantes-Bouguenais | 25.1°C 1°C cooler | 3.4°C about the same | 820 mm |
| La Haie-Fouassière 6.3 km | same station | 26.1°C about the same | 3.2°C about the same | 859 mm |
Vertou weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Haie-Fouassière station; sunshine at Nantes-Bouguenais.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.3°C | 3.2°C | 6.3°C | 97 mm | 73 |
| February | 10.6°C | 2.7°C | 6.6°C | 72 mm | 102 |
| March | 13.9°C | 4.5°C | 9.2°C | 62 mm | 147 |
| April | 17.0°C | 6.2°C | 11.6°C | 63 mm | 183 |
| May | 20.6°C | 9.5°C | 15.1°C | 59 mm | 203 |
| June | 24.1°C | 12.3°C | 18.2°C | 48 mm | 213 |
| July | 26.1°C | 13.9°C | 20.0°C | 45 mm | 229 |
| August | 26.2°C | 13.7°C | 19.9°C | 50 mm | 233 |
| September | 23.0°C | 10.9°C | 17.0°C | 68 mm | 199 |
| October | 18.0°C | 8.9°C | 13.5°C | 91 mm | 123 |
| November | 12.9°C | 5.6°C | 9.3°C | 98 mm | 91 |
| December | 9.9°C | 3.5°C | 6.7°C | 107 mm | 78 |
| Year | 17.6°C | 7.9°C | 12.8°C | 859 mm | 1,873 |
Where Vertou’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Haie-Fouassière, 7.3 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, 9.9 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 Loire-Atlantique.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Vertou’s climate
How warm does Vertou get in summer?
August is the warmest month, with average highs of 26.2°C. About 64 days a year reach 25°C, more than 55% of mainland French towns, and about 18 reach 30°C.
How cold does Vertou get in winter?
February nights average 2.7°C. The air drops to 0°C or below on about 35 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Vertou get?
About 859 mm a year, more than 71% of mainland French towns. December is the wettest month (107 mm) and July the driest (45 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Nantes-Bouguenais (9.9 km away), averages 1,873 hours of sunshine a year.
Are these figures for Vertou itself?
No: they are the normals of the Météo-France station matched to Vertou, Haie-Fouassière, 7.3 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 HAIE-FOUASSIERE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Vertou →
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.