Summer arrives softly in Marzan, cooler than in 89% of mainland French towns
The depth of winter brings overnight lows near 3.5°C. Winters are mild: January nights here are milder than in 85% of mainland French towns. Temperatures cover 21°C across the year, low to high. Garden chairs stay out from May to October, the months with highs of 17–24°C.
These are the figures of Météo-France’s Arzal station, 4.3 km south-west.
A year in Marzan at a glance
Each month’s typical high and low in °C, at the Arzal station.
What a year in Marzan feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Arzal.
About 887 mm of rain a year
December is the wettest month and July the driest. About 28 days a year bring 10 mm or more. 73rd wettest of 88 towns of 2,500+ in Morbihan.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Vannes-Séné
28 frosts and 33 days of 25°C a year
On about 28 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 33 days a year reach 25°C, and 6 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Arzal: 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 Arzal
Arzal is 4.3 km south-west of Marzan. Every figure on this page is the station’s, not a measurement in Marzan itself.
| Station (Météo-France number) | Arzal (56004001) |
| Distance from the town | 4.3 km south-west |
| Station altitude | 26 m |
| Town altitude (its center) | 65 m |
| Period | 1991–2020 |
| Sunshine measured at | Vannes-Séné, 29 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 Marzan 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 Morbihan.
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 |
|---|---|---|---|---|
| Marzan | Arzal | 23.6°C | 3.5°C | 887 mm |
| Péaule 4.4 km | same station | 23.6°C about the same | 3.5°C about the same | 887 mm |
| Nivillac 5.6 km | same station | 23.6°C about the same | 3.5°C about the same | 887 mm |
| Férel 6 km | same station | 23.6°C about the same | 3.5°C about the same | 887 mm |
| Noyal-Muzillac 10 km | Questembert | 24.2°C 0.6°C warmer | 3.0°C 0.5°C colder | 1,096 mm |
| Muzillac 11 km | Billiers | 23.9°C about the same | 3.7°C about the same | 840 mm |
| Herbignac 11 km | Herbignac | 24.6°C 1°C warmer | 3.6°C about the same | 886 mm |
Marzan weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Arzal station; sunshine at Vannes-Séné.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.4°C | 3.5°C | 6.4°C | 97 mm | 75 |
| February | 10.3°C | 3.2°C | 6.7°C | 76 mm | 107 |
| March | 13.0°C | 4.9°C | 9.0°C | 64 mm | 157 |
| April | 15.6°C | 6.5°C | 11.0°C | 66 mm | 201 |
| May | 18.8°C | 9.7°C | 14.3°C | 63 mm | 222 |
| June | 21.8°C | 12.3°C | 17.1°C | 49 mm | 244 |
| July | 23.6°C | 13.9°C | 18.8°C | 47 mm | 255 |
| August | 23.7°C | 13.9°C | 18.8°C | 55 mm | 225 |
| September | 21.4°C | 11.6°C | 16.5°C | 66 mm | 202 |
| October | 17.1°C | 9.5°C | 13.3°C | 93 mm | 121 |
| November | 12.9°C | 5.9°C | 9.4°C | 104 mm | 93 |
| December | 10.0°C | 3.8°C | 6.9°C | 107 mm | 79 |
| Year | 16.5°C | 8.2°C | 12.3°C | 887 mm | 1,981 |
Where Marzan’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Arzal, 4.3 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, Vannes-Séné, 29 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 Morbihan.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Marzan’s climate
How warm does Marzan get in summer?
August is the warmest month, with average highs of 23.7°C. About 33 days a year reach 25°C, fewer than 89% of mainland French towns, and about 6 reach 30°C.
How cold does Marzan get in winter?
February nights average 3.2°C. The air drops to 0°C or below on about 28 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Marzan get?
About 887 mm a year, more than 76% of mainland French towns. December is the wettest month (107 mm) and July the driest (47 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Vannes-Séné (29 km away), averages 1,981 hours of sunshine a year.
Are these figures for Marzan itself?
No: they are the normals of the Météo-France station matched to Marzan, Arzal, 4.3 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 ARZAL, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Marzan →
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.