Dry weather: only 639 mm a year falls on Houilles, less than on 85% of mainland French towns
Expect July afternoons of about 26.4°C. The gap between a January night and a July afternoon is 24°C. Of the 95 towns of 2,500+ in Yvelines, it has the mildest January nights. Wet days, with 1 mm of rain or more, come about 113 times a year.
These are the figures of Météo-France’s Bagatelle station, 7.7 km south-east.
A year in Houilles at a glance
Each month’s typical high and low in °C, at the Bagatelle station.
What a year in Houilles feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Bagatelle.
About 639 mm of rain a year
May is the wettest month and February the driest. About 18 days a year bring 10 mm or more. 79th wettest of 95 towns of 2,500+ in Yvelines.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Paris-Montsouris
36 frosts and 70 days of 25°C a year
On about 36 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 70 days a year reach 25°C, and 20 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Bagatelle: 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 Bagatelle
Bagatelle is 7.7 km south-east of Houilles. Every figure on this page is the station’s, not a measurement in Houilles itself.
| Station (Météo-France number) | Bagatelle (75116002) |
| Distance from the town | 7.7 km south-east |
| Station altitude | 36 m |
| Town altitude (its center) | 33 m |
| Period | 1991–2015 (the station’s own record) |
| Sunshine measured at | Paris-Montsouris, 16 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 Houilles 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 Yvelines.
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 |
|---|---|---|---|---|
| Houilles | Bagatelle | 26.4°C | 2.7°C | 639 mm |
| Sartrouville 1.7 km | same station | 26.4°C about the same | 2.7°C about the same | 639 mm |
| Carrières-sur-Seine 1.7 km | same station | 26.4°C about the same | 2.7°C about the same | 639 mm |
| Bezons 2 km | same station | 26.4°C about the same | 2.7°C about the same | 639 mm |
| Montesson 3.6 km | same station | 26.4°C about the same | 2.7°C about the same | 639 mm |
| Maisons-Laffitte 3.8 km | same station | 26.4°C about the same | 2.7°C about the same | 639 mm |
| Chatou 4.1 km | same station | 26.4°C about the same | 2.7°C about the same | 639 mm |
Houilles weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Bagatelle station; sunshine at Paris-Montsouris.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.1°C | 2.7°C | 5.4°C | 51 mm | 59 |
| February | 9.3°C | 2.3°C | 5.8°C | 45 mm | 84 |
| March | 13.7°C | 4.3°C | 9.1°C | 46 mm | 135 |
| April | 17.3°C | 6.4°C | 11.7°C | 45 mm | 177 |
| May | 20.9°C | 10.0°C | 15.5°C | 70 mm | 201 |
| June | 24.1°C | 12.9°C | 18.6°C | 53 mm | 204 |
| July | 26.4°C | 14.9°C | 20.6°C | 51 mm | 222 |
| August | 26.3°C | 14.5°C | 20.4°C | 55 mm | 215 |
| September | 22.3°C | 11.4°C | 16.9°C | 46 mm | 175 |
| October | 17.2°C | 8.7°C | 12.8°C | 55 mm | 119 |
| November | 11.4°C | 5.1°C | 8.3°C | 58 mm | 70 |
| December | 8.0°C | 2.7°C | 5.3°C | 64 mm | 57 |
| Year | 17.1°C | 8.0°C | 12.5°C | 639 mm | 1,717 |
Where Houilles’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Bagatelle, 7.7 km away: statistics for 1991–2020 (the station’s own years, 1991–2015, 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, Paris-Montsouris, 16 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 Yvelines.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Houilles’s climate
How warm does Houilles get in summer?
July is the warmest month, with average highs of 26.4°C. About 70 days a year reach 25°C, more than 62% of mainland French towns, and about 20 reach 30°C.
How cold does Houilles get in winter?
February nights average 2.3°C. The air drops to 0°C or below on about 36 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Houilles get?
About 639 mm a year, less than 85% of mainland French towns. May is the wettest month (70 mm) and February the driest (45 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Paris-Montsouris (16 km away), averages 1,717 hours of sunshine a year.
Are these figures for Houilles itself?
No: they are the normals of the Météo-France station matched to Houilles, Bagatelle, 7.7 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 BAGATELLE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Houilles →
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.