Few mainland French towns get more rain than Nancy-sur-Cluses: 1,587 mm a year
Midwinter brings lows of about −2.6°C. Its January nights bite harder than in almost every mainland French town. Expect the heaviest rain in May and the lightest in February. Frost greets about 94 mornings a year, so leave time to clear the car.
These are the figures of Météo-France’s Saint-Sigismond station, 4.7 km north-east.
A year in Nancy-sur-Cluses at a glance
Each month’s typical high and low in °C, at the Saint-Sigismond station.
What a year in Nancy-sur-Cluses feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Sigismond.
About 1,587 mm of rain a year
May is the wettest month and February the driest. About 58 days a year bring 10 mm or more. 3rd wettest of 69 towns of 2,500+ in Haute-Savoie.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Meythet
A frosty town: 94 frosts and 25 days of 25°C a year
On about 94 nights a year the air drops to 0°C or below, and on about 24 days it stays below freezing all day. About 25 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Sigismond: 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 Saint-Sigismond
Saint-Sigismond is 4.7 km north-east of Nancy-sur-Cluses. Every figure on this page is the station’s, not a measurement in Nancy-sur-Cluses itself.
| Station (Météo-France number) | Saint-Sigismond (74252001) |
| Distance from the town | 4.7 km north-east |
| Station altitude | 1,020 m |
| Town altitude (its center) | 976 m |
| Period | 1993–2020 (the station’s own record) |
| Sunshine measured at | Meythet, 39 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 Nancy-sur-Cluses 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 Haute-Savoie.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Nancy-sur-Cluses | Saint-Sigismond | 22.4°C | −2.6°C | 1,587 mm |
| Scionzier 3 km | Ayze | 27.5°C 5.1°C warmer | −2.4°C about the same | 1,193 mm |
| Cluses 3 km | Ayze | 27.5°C 5.1°C warmer | −2.4°C about the same | 1,193 mm |
| Marnaz 4.4 km | Ayze | 27.5°C 5.1°C warmer | −2.4°C about the same | 1,193 mm |
| Magland 5 km | Sallanches | 27.0°C 4.6°C warmer | −3.0°C about the same | 1,099 mm |
| Thyez 5.5 km | Ayze | 27.5°C 5.1°C warmer | −2.4°C about the same | 1,193 mm |
| Taninges 7.6 km | Sallanches | 27.0°C 4.6°C warmer | −3.0°C about the same | 1,099 mm |
Nancy-sur-Cluses weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Sigismond station; sunshine at Meythet.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 3.6°C | −2.6°C | 0.5°C | 131 mm | 88 |
| February | 4.3°C | −2.3°C | 1.0°C | 110 mm | 113 |
| March | 8.5°C | 0.5°C | 4.5°C | 118 mm | 174 |
| April | 12.2°C | 3.5°C | 7.9°C | 116 mm | 191 |
| May | 16.1°C | 7.3°C | 11.7°C | 158 mm | 220 |
| June | 20.2°C | 10.9°C | 15.6°C | 141 mm | 256 |
| July | 22.4°C | 12.9°C | 17.7°C | 141 mm | 274 |
| August | 21.8°C | 12.9°C | 17.3°C | 155 mm | 249 |
| September | 17.3°C | 9.4°C | 13.3°C | 127 mm | 195 |
| October | 13.2°C | 6.2°C | 9.7°C | 121 mm | 141 |
| November | 7.4°C | 1.3°C | 4.4°C | 123 mm | 91 |
| December | 4.5°C | −1.5°C | 1.5°C | 146 mm | 78 |
| Year | 12.6°C | 4.9°C | 8.8°C | 1,587 mm | 2,069 |
Where Nancy-sur-Cluses’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Sigismond, 4.7 km away: statistics for 1991–2020 (the station’s own years, 1993–2020, 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, Meythet, 39 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 Haute-Savoie.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Nancy-sur-Cluses’s climate
How warm does Nancy-sur-Cluses get in summer?
July is the warmest month, with average highs of 22.4°C. About 25 days a year reach 25°C, fewer than 93% of mainland French towns, and about 2 reach 30°C.
How cold does Nancy-sur-Cluses get in winter?
January nights average −2.6°C. The air drops to 0°C or below on about 94 nights a year, and about 24 days a year stay below freezing all day.
How much rain does Nancy-sur-Cluses get?
About 1,587 mm a year, more than almost every mainland French town. May is the wettest month (158 mm) and February the driest (110 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Meythet (39 km away), averages 2,069 hours of sunshine a year.
Are these figures for Nancy-sur-Cluses itself?
No: they are the normals of the Météo-France station matched to Nancy-sur-Cluses, Saint-Sigismond, 4.7 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 ST SIGISMOND, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Nancy-sur-Cluses →
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.