Nights stay kind in Montreuil each January, milder than in 83% of mainland French towns
High summer brings afternoon highs near 26.3°C. Wet weather is most frequent in November and least in July. Plan for rain on about 114 days a year, the days with 1 mm or more.
Figures from Météo-France’s Marans station, 16 km south-west.
A year in Montreuil at a glance
Each month’s typical high and low in °C, at the Marans station.
What a year in Montreuil feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Marans.
About 740 mm of rain a year
November is the wettest month and July the driest. About 23 days a year bring 10 mm or more. 74th wettest of 75 towns of 2,500+ in Vendée.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Niort
31 frosts and 66 days of 25°C a year
On about 31 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 66 days a year reach 25°C, and 19 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Marans: 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 Marans
Marans is 16 km south-west of Montreuil. Every figure on this page is the station’s, not a measurement in Montreuil itself.
| Station (Météo-France number) | Marans (17218001) |
| Distance from the town | 16 km south-west |
| Station altitude | 2 m |
| Town altitude (its center) | 9 m |
| Period | 1991–2020 |
| Sunshine measured at | Niort, 35 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 Montreuil 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 |
|---|---|---|---|---|
| Montreuil | Marans | 26.3°C | 3.4°C | 740 mm |
| Fontenay-le-Comte 7.5 km | same station | 26.3°C about the same | 3.4°C about the same | 740 mm |
| Saint-Jean-de-Liversay 15 km | same station | 26.3°C about the same | 3.4°C about the same | 740 mm |
| Marans 16 km | same station | 26.3°C about the same | 3.4°C about the same | 740 mm |
| Benet 19 km | Niort | 26.3°C about the same | 2.8°C 0.6°C colder | 847 mm |
| Saint-Jean-d'Hermine 24 km | Sainte-Gemme-la-Plaine | 26.1°C about the same | 3.3°C about the same | 809 mm |
| Magné 24 km | Prin-Deyrançon | 27.0°C 0.7°C warmer | 2.8°C 0.6°C colder | 837 mm |
Montreuil weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Marans station; sunshine at Niort.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.7°C | 3.4°C | 6.6°C | 72 mm | 76 |
| February | 11.1°C | 2.9°C | 7.0°C | 55 mm | 108 |
| March | 14.4°C | 4.8°C | 9.6°C | 56 mm | 160 |
| April | 17.2°C | 6.7°C | 11.9°C | 56 mm | 187 |
| May | 20.8°C | 10.0°C | 15.4°C | 55 mm | 219 |
| June | 24.1°C | 12.9°C | 18.5°C | 44 mm | 241 |
| July | 26.3°C | 14.4°C | 20.3°C | 40 mm | 257 |
| August | 26.5°C | 14.3°C | 20.4°C | 45 mm | 248 |
| September | 23.7°C | 11.9°C | 17.8°C | 60 mm | 207 |
| October | 18.9°C | 9.8°C | 14.3°C | 83 mm | 134 |
| November | 13.6°C | 6.1°C | 9.8°C | 89 mm | 93 |
| December | 10.3°C | 3.7°C | 7.0°C | 86 mm | 77 |
| Year | 18.0°C | 8.4°C | 13.2°C | 740 mm | 2,006 |
Where Montreuil’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Marans, 16 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, Niort, 35 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 Montreuil’s climate
How warm does Montreuil get in summer?
August is the warmest month, with average highs of 26.5°C. About 66 days a year reach 25°C, more than 57% of mainland French towns, and about 19 reach 30°C.
How cold does Montreuil get in winter?
February nights average 2.9°C. The air drops to 0°C or below on about 31 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Montreuil get?
About 740 mm a year, less than 57% of mainland French towns. November is the wettest month (89 mm) and July the driest (40 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Niort (35 km away), averages 2,006 hours of sunshine a year.
Are these figures for Montreuil itself?
No: they are the normals of the Météo-France station matched to Montreuil, Marans, 16 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 MARANS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Montreuil →
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.