Photo: Villerumilly · CC BY-SA 4.0Rumilly sits near the bottom of mainland French towns for winter warmth
Peak summer warmth arrives in July, with afternoons near 27.8°C. A year here swings 29°C from midwinter lows to midsummer highs. By rainfall alone, it ranks wetter than 96% of mainland French towns. Plan time outside for May, June and September, when highs sit at 22–26°C.
These are the figures of Météo-France’s Bloye station, 4.5 km south.
A year in Rumilly at a glance
Each month’s typical high and low in °C, at the Bloye station.
What a year in Rumilly 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. 26th 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: 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 4.5 km south of Rumilly. Every figure on this page is the station’s, not a measurement in Rumilly itself.
| Station (Météo-France number) | Bloye (74035001) |
| Distance from the town | 4.5 km south |
| Station altitude | 375 m |
| Town altitude (its center) | 336 m |
| Period | 1995–2020 (the station’s own record) |
| Sunshine measured at | Meythet, 14 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 Rumilly 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. 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 |
|---|---|---|---|---|
| Rumilly | Bloye | 27.8°C | −1.5°C | 1,207 mm |
| Vallières-sur-Fier 5 km | same station | 27.8°C about the same | −1.5°C about the same | 1,207 mm |
| Alby-sur-Chéran 7.6 km | same station | 27.8°C about the same | −1.5°C about the same | 1,207 mm |
| Entrelacs 8.9 km | same station | 27.8°C about the same | −1.5°C about the same | 1,207 mm |
| Chavanod 9.2 km | Meythet | 26.5°C 1.3°C cooler | −1.4°C about the same | 1,211 mm |
| Poisy 12 km | Meythet | 26.5°C 1.3°C cooler | −1.4°C about the same | 1,211 mm |
| La Biolle 12 km | Mognard | 27.5°C about the same | −2.0°C 0.5°C colder | 1,280 mm |
Rumilly weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Bloye station; sunshine at Meythet.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.8°C | −1.5°C | 2.1°C | 99 mm | 88 |
| February | 8.2°C | −1.4°C | 3.4°C | 83 mm | 113 |
| March | 13.2°C | 1.4°C | 7.3°C | 90 mm | 174 |
| April | 17.5°C | 4.5°C | 11.0°C | 91 mm | 191 |
| May | 21.5°C | 8.9°C | 15.2°C | 99 mm | 220 |
| June | 25.8°C | 12.5°C | 19.1°C | 99 mm | 256 |
| July | 27.8°C | 13.8°C | 20.8°C | 86 mm | 274 |
| August | 27.3°C | 13.6°C | 20.4°C | 100 mm | 249 |
| September | 22.7°C | 10.0°C | 16.4°C | 104 mm | 195 |
| October | 17.4°C | 6.8°C | 12.1°C | 118 mm | 141 |
| November | 10.4°C | 2.1°C | 6.2°C | 117 mm | 91 |
| December | 6.1°C | −0.9°C | 2.6°C | 121 mm | 78 |
| Year | 17.0°C | 5.8°C | 11.4°C | 1,207 mm | 2,069 |
Where Rumilly’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Bloye, 4.5 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, Meythet, 14 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 Rumilly’s climate
How warm does Rumilly 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 Rumilly 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 Rumilly 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, Meythet (14 km away), averages 2,069 hours of sunshine a year.
Are these figures for Rumilly itself?
No: they are the normals of the Météo-France station matched to Rumilly, Bloye, 4.5 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 Rumilly →
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.