Few mainland French towns have colder winter nights than Marignieu
In July the day’s top temperature is typically 27.8°C. From frosty January to warm July, readings climb 29°C. It is a wet place: more rain falls here than on 96% of mainland French towns. Warm coats and heating bills mark the months from November to March, when means dip under 10°C.
These are the figures of Météo-France’s Bloye station, 18 km east.
A year in Marignieu at a glance
Each month’s typical high and low in °C, at the Bloye station.
What a year in Marignieu feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Bloye.
About 1,207 mm of rain a year
December is the wettest month and February the driest. About 44 days a year bring 10 mm or more. 8th wettest of 60 towns of 2,500+ in Ain.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chambery-Aix
A frosty town: 83 frosts and 84 days of 25°C a year
On about 83 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 84 days a year reach 25°C, and 29 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Bloye: 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 Bloye
Bloye is 18 km east of Marignieu. Every figure on this page is the station’s, not a measurement in Marignieu itself.
| Station (Météo-France number) | Bloye (74035001) |
| Distance from the town | 18 km east |
| Station altitude | 375 m |
| Town altitude (its center) | 384 m |
| Period | 1995–2020 (the station’s own record) |
| Nearest station of any kind | 4 km |
| Sunshine measured at | Chambery-Aix, 21 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 Marignieu 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 Ain.
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 |
|---|---|---|---|---|
| Marignieu | Bloye | 27.8°C | −1.5°C | 1,207 mm |
| Belley 5.1 km | Chambery-Aix | 27.8°C about the same | −0.7°C 0.8°C milder | 1,204 mm |
| Culoz-Béon 7.5 km | same station | 27.8°C about the same | −1.5°C about the same | 1,207 mm |
| Yenne 11 km | Chambery-Aix | 27.8°C about the same | −0.7°C 0.8°C milder | 1,204 mm |
| La Biolle 17 km | Mognard | 27.5°C about the same | −2.0°C 0.5°C colder | 1,280 mm |
| Entrelacs 17 km | same station | 27.8°C about the same | −1.5°C about the same | 1,207 mm |
| Grésy-sur-Aix 18 km | Mognard | 27.5°C about the same | −2.0°C 0.5°C colder | 1,280 mm |
Marignieu weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Bloye station; sunshine at Chambery-Aix.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.8°C | −1.5°C | 2.1°C | 99 mm | 77 |
| February | 8.2°C | −1.4°C | 3.4°C | 83 mm | 102 |
| March | 13.2°C | 1.4°C | 7.3°C | 90 mm | 158 |
| April | 17.5°C | 4.5°C | 11.0°C | 91 mm | 176 |
| May | 21.5°C | 8.9°C | 15.2°C | 99 mm | 202 |
| June | 25.8°C | 12.5°C | 19.1°C | 99 mm | 236 |
| July | 27.8°C | 13.8°C | 20.8°C | 86 mm | 262 |
| August | 27.3°C | 13.6°C | 20.4°C | 100 mm | 237 |
| September | 22.7°C | 10.0°C | 16.4°C | 104 mm | 181 |
| October | 17.4°C | 6.8°C | 12.1°C | 118 mm | 124 |
| November | 10.4°C | 2.1°C | 6.2°C | 117 mm | 75 |
| December | 6.1°C | −0.9°C | 2.6°C | 121 mm | 66 |
| Year | 17.0°C | 5.8°C | 11.4°C | 1,207 mm | 1,895 |
Where Marignieu’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Bloye, 18 km away: statistics for 1991–2020 (the station’s own years, 1995–2020, 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, Chambery-Aix, 21 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 Ain.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Marignieu’s climate
How warm does Marignieu get in summer?
July is the warmest month, with average highs of 27.8°C. About 84 days a year reach 25°C, more than 75% of mainland French towns, and about 29 reach 30°C.
How cold does Marignieu get in winter?
January nights average −1.5°C. The air drops to 0°C or below on about 83 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Marignieu get?
About 1,207 mm a year, more than 96% of mainland French towns. December is the wettest month (121 mm) and February the driest (83 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chambery-Aix (21 km away), averages 1,895 hours of sunshine a year.
Are these figures for Marignieu itself?
No: they are the normals of the Météo-France station matched to Marignieu, Bloye, 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 BLOYE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Marignieu →
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.