Sainte-Geneviève-des-Bois in Winter
In winter (December, January and February), Sainte-Geneviève-des-Bois sees average daytime highs around 7°C and overnight lows near 2°C, with 168 mm of precipitation over about 34 wet days across the season. It is the coldest season of the year and the 2nd-wettest season.
Across winter, daytime highs hold fairly steady around 7°C. The sky is clear or mostly clear about 14% of the time across winter, and the air most often feels dry.
Winter is Sainte-Geneviève-des-Bois's weakest season of the year to visit on our travel score. For the whole year in context, see Sainte-Geneviève-des-Bois's year-round climate.
- Avg daytime high
- 7°C
- coldest season of the year
- Avg overnight low
- 2°C
- Precipitation
- 168 mm
- 34 wet days
- Avg wind
- 15 km/h
- Travel score
- 0.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Sainte-Geneviève-des-Bois in Winter
Across winter, daytime highs hold fairly steady around 7°C.
A typical winter day in Sainte-Geneviève-des-Bois reaches about 7°C and drops to 2°C overnight. The warmest of the three months is February, the coolest February.
How winter really feels in Sainte-Geneviève-des-Bois
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 90 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Sainte-Geneviève-des-Bois weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / 2° | 52 | 11.3 | 0.8 | 8.5 | 0.7 |
| Feb | 8° / 2° | 47 | 10 | 1.1 | 9.8 | 1.2 |
| Mar | 12° / 4° | 51 | 10.5 | 0.5 | 11.6 | 3.0 |
| Apr | 15° / 6° | 50 | 10.6 | 0 | 13.4 | 4.5 |
| May | 19° / 9° | 66 | 11.3 | 0 | 15 | 5.6 |
| Jun | 22° / 12° | 58 | 10.6 | 0 | 15.8 | 6.4 |
| Jul | 25° / 14° | 55 | 9.4 | 0 | 15.5 | 6.9 |
| Aug | 24° / 14° | 57 | 9 | 0 | 14.2 | 7.0 |
| Sep | 21° / 11° | 47 | 8.4 | 0 | 12.4 | 6.5 |
| Oct | 16° / 8° | 62 | 11.2 | 0 | 10.5 | 4.6 |
| Nov | 10° / 5° | 58 | 11.3 | 0.3 | 9 | 2.2 |
| Dec | 7° / 3° | 68 | 12.5 | 0.9 | 8.1 | 0.9 |
Cloud cover in Winter
The sky is clear or mostly clear about 14% of the time across winter.
Chance of precipitation in Winter
Sainte-Geneviève-des-Bois gets around 168 mm of rain and snow over 34 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 15 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 8 h 24 min in early December to 10 h 36 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 1.2 kWh/m².
Is winter a good time to visit Sainte-Geneviève-des-Bois?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Sainte-Geneviève-des-Bois.
What to pack for Sainte-Geneviève-des-Bois in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Sainte-Geneviève-des-Bois sees daytime highs around 7°C and nights near 2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 34 days see rain.
UV index in Sainte-Geneviève-des-Bois in Winter
Clear-sky midday UV across winter averages around 1. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sainte-Geneviève-des-Bois peaks around June 23 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 5 | 6 | 7 | 7 | 7 | 4 | 3 | 1 | 1 |
| Level | Low | Low | Moderate | Moderate | High | High | High | High | Moderate | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Low |
| Mar | 3 | Moderate |
| Apr | 5 | Moderate |
| May | 6 | High |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 7 | High |
| Sep | 4 | Moderate |
| Oct | 3 | Moderate |
| Nov | 1 | Low |
| Dec | 1 | Low |
Air quality in Sainte-Geneviève-des-Bois in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Sainte-Geneviève-des-Bois is worst in April — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 17 | 17 | 20 | 20 | 17 | 16 | 13 | 14 | 15 | 15 | 15 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 17 | Moderate |
| Feb | 17 | Moderate |
| Mar | 20 | Moderate |
| Apr | 20 | Moderate |
| May | 17 | Moderate |
| Jun | 16 | Moderate |
| Jul | 13 | Moderate |
| Aug | 14 | Moderate |
| Sep | 15 | Moderate |
| Oct | 15 | Moderate |
| Nov | 15 | Moderate |
| Dec | 15 | Moderate |
Where is Sainte-Geneviève-des-Bois?
Sainte-Geneviève-des-Bois sits at 48.6°N, 2.3°E, 79 m above sea level, in France. The nearest listed city is Saint-Michel-sur-Orge, 2.0 km away.
Topography around Sainte-Geneviève-des-Bois
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sainte-Geneviève-des-Bois.
Within 3 km, the terrain around Sainte-Geneviève-des-Bois has only modest variations in elevation — a maximum elevation change of 73 m around an average of 72 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 166 m; within 80 km, significant variations in elevation — a maximum elevation change of 257 m.
The land around Sainte-Geneviève-des-Bois is covered by artificial surfaces (44%) and trees (40%) within 3 km, trees (40%), artificial surfaces (30%) and cropland (21%) within 16 km, and cropland (56%) and trees (31%) within 80 km.
France travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / E
- 230 V · 50 Hz
- Prices
- ≈ 77% of US
- price level, 2025
- GDP per capita
- $48,986
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.3
- per 100k, 2023
- Road deaths
- 5.1
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 539
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sainte-Geneviève-des-Bois (48.6468°, 2.3197°, elevation 79 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.