No extremes in Marsais: its weather tracks the middle of mainland French towns
A typical January night drops to 2.8°C and a July afternoon reaches 27.0°C; 837 mm of rain falls in a year. Rain peaks in November and eases off in July. About 77 days a year reach 25°C, more than in 70% of mainland French towns. Windscreens need scraping on about 45 mornings a year, the nights the air drops below 0°C.
Figures from Météo-France’s Prin-Deyrançon station, 11 km north.
A year in Marsais at a glance
Each month’s typical high and low in °C, at the Prin-Deyrançon station.
What a year in Marsais 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. 20th wettest of 54 towns of 2,500+ in Charente-Maritime.
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 11 km north of Marsais. Every figure on this page is the station’s, not a measurement in Marsais itself.
| Station (Météo-France number) | Prin-Deyrançon (79220001) |
| Distance from the town | 11 km north |
| Station altitude | 14 m |
| Town altitude (its center) | 44 m |
| Period | 1991–2019 (the station’s own record) |
| Sunshine measured at | Niort, 28 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 Marsais 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 Charente-Maritime.
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 |
|---|---|---|---|---|
| Marsais | Prin-Deyrançon | 27.0°C | 2.8°C | 837 mm |
| Mauzé-sur-le-Mignon 8.6 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
| Surgères 9.6 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
| Frontenay-Rohan-Rohan 16 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
| Saint-Jean-d'Angély 21 km | Nuaille sur Boutonne | 26.8°C about the same | 2.9°C about the same | 849 mm |
| Magné 22 km | same station | 27.0°C about the same | 2.8°C about the same | 837 mm |
| Aigrefeuille-d'Aunis 23 km | Saint-Laurent Prée-Inrae | 25.0°C 2°C cooler | 3.5°C 0.7°C milder | 781 mm |
Marsais 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 Marsais’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Prin-Deyrançon, 11 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, 28 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 Charente-Maritime.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Marsais’s climate
How warm does Marsais 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 Marsais 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 Marsais 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 (28 km away), averages 2,006 hours of sunshine a year.
Are these figures for Marsais itself?
No: they are the normals of the Météo-France station matched to Marsais, Prin-Deyrançon, 11 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 Marsais →
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.