Photo: Chabe01 · CC BY-SA 4.0Less rain falls on Boissy-Saint-Léger than on 82% of mainland French towns: 656 mm a year
On a normal July day the thermometer tops out near 26.5°C. From frosty January to warm July, readings climb 24°C. In July, afternoons here are warmer than in 62% of mainland French towns. The outdoor season runs from May to October, with highs of 17–27°C.
These are the figures of Météo-France’s Limeil station, 1.8 km west.
A year in Boissy-Saint-Léger at a glance
Each month’s typical high and low in °C, at the Limeil station.
What a year in Boissy-Saint-Léger feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Limeil.
About 656 mm of rain a year
May is the wettest month and February the driest. About 17 days a year bring 10 mm or more. 15th wettest of 47 towns of 2,500+ in Val-de-Marne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Orly
40 frosts and 67 days of 25°C a year
On about 40 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 67 days a year reach 25°C, and 20 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Limeil: 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 Limeil
Limeil is 1.8 km west of Boissy-Saint-Léger. Every figure on this page is the station’s, not a measurement in Boissy-Saint-Léger itself.
| Station (Météo-France number) | Limeil (94044001) |
| Distance from the town | 1.8 km west |
| Station altitude | 45 m |
| Town altitude (its center) | 79 m |
| Period | 1991–2020 |
| Sunshine measured at | Orly, 9.1 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 Boissy-Saint-Léger 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 Val-de-Marne.
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 |
|---|---|---|---|---|
| Boissy-Saint-Léger | Limeil | 26.5°C | 2.2°C | 656 mm |
| Limeil-Brévannes 1.8 km | same station | 26.5°C about the same | 2.2°C about the same | 656 mm |
| Sucy-en-Brie 2.3 km | Mandres | 25.9°C 0.6°C cooler | 1.8°C about the same | 698 mm |
| Bonneuil-sur-Marne 2.8 km | same station | 26.5°C about the same | 2.2°C about the same | 656 mm |
| Noiseau 3.6 km | Mandres | 25.9°C 0.6°C cooler | 1.8°C about the same | 698 mm |
| Valenton 3.6 km | same station | 26.5°C about the same | 2.2°C about the same | 656 mm |
| Marolles-en-Brie 3.8 km | Mandres | 25.9°C 0.6°C cooler | 1.8°C about the same | 698 mm |
Boissy-Saint-Léger weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Limeil station; sunshine at Orly.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.7°C | 2.2°C | 4.9°C | 50 mm | 53 |
| February | 9.2°C | 2.2°C | 5.7°C | 46 mm | 85 |
| March | 13.4°C | 4.3°C | 8.8°C | 46 mm | 153 |
| April | 16.8°C | 6.4°C | 11.7°C | 48 mm | 203 |
| May | 20.7°C | 10.1°C | 15.4°C | 67 mm | 217 |
| June | 24.1°C | 13.3°C | 18.7°C | 56 mm | 224 |
| July | 26.5°C | 15.3°C | 20.8°C | 55 mm | 247 |
| August | 26.4°C | 14.8°C | 20.6°C | 60 mm | 221 |
| September | 22.2°C | 11.5°C | 16.8°C | 49 mm | 186 |
| October | 17.0°C | 8.7°C | 12.8°C | 56 mm | 117 |
| November | 11.3°C | 5.1°C | 8.2°C | 57 mm | 62 |
| December | 8.0°C | 2.7°C | 5.3°C | 66 mm | 64 |
| Year | 16.9°C | 8.0°C | 12.5°C | 656 mm | 1,831 |
Where Boissy-Saint-Léger’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Limeil, 1.8 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, Orly, 9.1 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 Val-de-Marne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Boissy-Saint-Léger’s climate
How warm does Boissy-Saint-Léger get in summer?
July is the warmest month, with average highs of 26.5°C. About 67 days a year reach 25°C, more than 58% of mainland French towns, and about 20 reach 30°C.
How cold does Boissy-Saint-Léger get in winter?
January nights average 2.2°C. The air drops to 0°C or below on about 40 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Boissy-Saint-Léger get?
About 656 mm a year, less than 82% of mainland French towns. May is the wettest month (67 mm) and February the driest (46 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Orly (9.1 km away), averages 1,831 hours of sunshine a year.
Are these figures for Boissy-Saint-Léger itself?
No: they are the normals of the Météo-France station matched to Boissy-Saint-Léger, Limeil, 1.8 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 LIMEIL, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Boissy-Saint-Léger →
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.