Few mainland French towns get more rain than La Rosière: 2,282 mm a year
Nights in January average −1.1°C. In January, nights here are colder than in 94% of mainland French towns. Wet weather is most frequent in December and least in June. Plan time outside from May to September, when highs sit at 18–24°C.
Figures from Météo-France’s Sewen - Lac Alfeld station, 21 km south-east.
A year in La Rosière at a glance
Each month’s typical high and low in °C, at the Sewen - Lac Alfeld station.
What a year in La Rosière feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Sewen - Lac Alfeld.
About 2,282 mm of rain a year
December is the wettest month and June the driest. About 73 days a year bring 10 mm or more. The wettest of 11 towns of 2,500+ in Haute-Saône.
Rain by month
Millimeters
A frosty town: 69 frosts and 44 days of 25°C a year
On about 69 nights a year the air drops to 0°C or below, and on about 16 days it stays below freezing all day. About 44 days a year reach 25°C, and 10 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Sewen - Lac Alfeld: 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 Sewen - Lac Alfeld
Sewen - Lac Alfeld is 21 km south-east of La Rosière. Every figure on this page is the station’s, not a measurement in La Rosière itself.
| Station (Météo-France number) | Sewen - Lac Alfeld (68307001) |
| Distance from the town | 21 km south-east |
| Station altitude | 620 m |
| Town altitude (its center) | 605 m |
| Period | 1991–2020 |
| Nearest station of any kind | 10 km |
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 La Rosière 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-Saône.
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 |
|---|---|---|---|---|
| La Rosière | Sewen - Lac Alfeld | 23.8°C | −1.1°C | 2,282 mm |
| Rupt-sur-Moselle 3.3 km | Val-d Ajol | 25.9°C 2.1°C warmer | −1.3°C about the same | 1,576 mm |
| Le Val-d'Ajol 10 km | Val-d Ajol | 25.9°C 2.1°C warmer | −1.3°C about the same | 1,576 mm |
| Le Thillot 11 km | Plancher-les-Mi | 24.5°C 0.7°C warmer | −2.1°C 1°C colder | 2,049 mm |
| Saulxures-sur-Moselotte 12 km | Giromagny | 24.3°C 0.5°C warmer | −1.3°C about the same | 1,637 mm |
| Remiremont 12 km | Val-d Ajol | 25.9°C 2.1°C warmer | −1.3°C about the same | 1,576 mm |
| Saint-Étienne-lès-Remiremont 13 km | Val-d Ajol | 25.9°C 2.1°C warmer | −1.3°C about the same | 1,576 mm |
La Rosière weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Sewen - Lac Alfeld station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 3.8°C | −1.1°C | 1.3°C | 285 mm |
| February | 5.0°C | −1.1°C | 2.0°C | 218 mm |
| March | 9.7°C | 1.9°C | 5.8°C | 215 mm |
| April | 14.0°C | 5.1°C | 9.5°C | 129 mm |
| May | 18.2°C | 8.8°C | 13.5°C | 161 mm |
| June | 22.1°C | 12.3°C | 17.2°C | 121 mm |
| July | 23.8°C | 14.1°C | 18.9°C | 132 mm |
| August | 24.1°C | 14.2°C | 19.2°C | 135 mm |
| September | 19.0°C | 10.7°C | 14.8°C | 140 mm |
| October | 13.7°C | 7.0°C | 10.4°C | 203 mm |
| November | 7.9°C | 2.7°C | 5.3°C | 220 mm |
| December | 4.7°C | 0.0°C | 2.3°C | 324 mm |
| Year | 13.8°C | 6.2°C | 10.0°C | 2,282 mm |
Where La Rosière’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Sewen - Lac Alfeld, 21 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.
- 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-Saône.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about La Rosière’s climate
How warm does La Rosière get in summer?
August is the warmest month, with average highs of 24.1°C. About 44 days a year reach 25°C, fewer than 76% of mainland French towns, and about 10 reach 30°C.
How cold does La Rosière get in winter?
January nights average −1.1°C. The air drops to 0°C or below on about 69 nights a year, and about 16 days a year stay below freezing all day.
How much rain does La Rosière get?
About 2,282 mm a year, more than almost every mainland French town. December is the wettest month (324 mm) and June the driest (121 mm).
Are these figures for La Rosière itself?
No: they are the normals of the Météo-France station matched to La Rosière, Sewen - Lac Alfeld, 21 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 SEWEN - LAC ALFELD_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for La Rosière →
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.