Le Chesnay weather in January

In January, Le Chesnay sees average daytime highs of 7°C and overnight lows near 2°C, with 53 mm of precipitation across 11.3 wet days and about 8.5 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 7°C through the month. The sky is clear or mostly clear about 14% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 06 min at the start of January to 9 h 06 min by month's end. Set against the rest of the year, January is Le Chesnay's 12th-clearest and 1st-windiest month. For the whole year in context, see Le Chesnay's year-round climate.

Daytime high
12th warmest
Overnight low
2nd coldest
Precipitation
53 mm
11.3 wet days
Daylight
8 h 30 min
8:47 AM – 5:15 PM
Cloud cover
77%
12th clearest
Wind
15 km/h
1st windiest
Solar energy
0.96 kWh/m²
Travel score
0.7
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 7°C through the month.

A typical January day in Le Chesnay reaches about 7°C in the afternoon and slips back to 2°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 1°C and 12°C. Set against its neighbours, January runs on par with December and about 1°C cooler than February.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
172
272
372
472
572
672
772
872
972
1072
1172
1272
1372
1472
1572
1672
1772
1872
1972
2072
2172
2272
2372
2472
2562
2662
2762
2862
2972
3072
3172

How January really feels in Le Chesnay

Once humidity and wind are folded in, January averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in January is cold — wind chill drags the overnight "feels like" below the raw low.

Le Chesnay weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5311.318.50.7
Feb / 47101.39.81.2
Mar12° / 5110.60.611.62.9
Apr15° / 5211013.44.3
May18° / 6711.60155.5
Jun22° / 12°6010.4015.96.4
Jul24° / 14°559.1015.57.0
Aug24° / 14°588.9014.27.0
Sep20° / 11°488.5012.46.4
Oct16° / 6311.2010.54.6
Nov10° / 5911.10.38.92.2
Dec / 6812.41.18.10.9

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in January, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 9% of January, with mostly cloudy or overcast conditions the remaining 77%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12377
22278
32278
42179
52179
62179
72278
82278
92278
102278
112377
122377
132377
142377
152377
162476
172476
182476
192575
202476
212476
222476
232476
242476
252278
262377
272377
282377
292476
302476
312476

Chance of precipitation in January

Any precipitationSnow

Le Chesnay gets around 53 mm of rain and snow over 11.3 wet days in January. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 36% and peaks near 39% on the wettest days, and about 1 day brings snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1394
2394
3393
4393
5393
6393
7393
8383
9383
10383
11373
12373
13363
14363
15363
16363
17353
18353
19353
20353
21353
22353
23343
24344
25344
26344
27344
28344
29344
30344
31355

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in January

Winds average 15 km/h in January, the windiest month of the year.

Across January, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 06 min at the start of January to 9 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over January. Sunrise moves from 8:51 AM to 8:33 AM, and sunset from 4:58 PM to 5:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.18:514:58
28.18:514:59
38.18:515:00
48.28:515:01
58.28:515:02
68.28:515:03
78.28:515:04
88.28:505:05
98.38:505:06
108.38:505:07
118.38:495:09
128.38:495:10
138.48:485:11
148.48:485:12
158.48:475:14
168.58:475:15
178.58:465:16
188.58:455:18
198.68:455:19
208.68:445:20
218.68:435:22
228.78:425:23
238.78:415:25
248.88:405:26
258.88:395:28
268.98:385:29
278.98:375:31
288.98:365:32
299.08:355:34
309.08:345:36
319.18:335:37

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 0.96 kWh/m².

For context, solar energy here swings from a low near 0.79 kWh/m² to a high of 5.58 kWh/m² in June across the year — January's 0.96 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
10.8Dim
20.8Dim
30.8Dim
40.8Dim
50.8Dim
60.8Dim
70.8Dim
80.8Dim
90.9Dim
100.9Dim
110.9Dim
120.9Dim
130.9Dim
140.9Dim
150.9Dim
161.0Dim
171.0Dim
181.0Dim
191.0Dim
201.0Dim
211.0Dim
221.1Dim
231.1Dim
241.1Dim
251.1Dim
261.1Dim
271.2Dim
281.2Dim
291.2Dim
301.3Dim
311.3Dim
Planning a trip in January

Is January a good time to visit Le Chesnay?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.7
Sightseeing
12th-best month of the year
0.0
Beach & pool
9th-best month of the year

January is a weaker month for outdoor sightseeing in Le Chesnay.

What to pack for Le Chesnay in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Le Chesnay sees daytime highs around 7°C and nights near 2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 11 days see rain.

a warm layera heavy coatrain gear

UV index in Le Chesnay in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Le Chesnay peaks around June 22 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 22UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr5Moderate
May6High
Jun7High
Jul7High
Aug7High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Le Chesnay in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Le Chesnay 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1020 µg/m³Jul 2014 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb17Moderate
Mar20Moderate
Apr20Moderate
May17Moderate
Jun16Moderate
Jul13Moderate
Aug14Moderate
Sep15Moderate
Oct15Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Le Chesnay?

Le Chesnay sits at 48.8°N, 2.1°E, 122 m above sea level, in France. The nearest listed city is Versailles, 2.0 km away.

Topography around Le Chesnay

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Le Chesnay.

Within 3 km, the terrain around Le Chesnay has only modest variations in elevation — a maximum elevation change of 99 m around an average of 141 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 221 m; within 80 km, significant variations in elevation — a maximum elevation change of 260 m.

The land around Le Chesnay is covered by trees (54%) and artificial surfaces (29%) within 3 km, trees (45%) and artificial surfaces (33%) within 16 km, and cropland (55%) and trees (31%) within 80 km.

3 km
99 m
16 km
221 m
80 km
260 m
treesgrasslandcroplandartificial surfaceswater
January weather nearby: Versailles 2.0 km · La Celle-Saint-Cloud 4.0 km · Viroflay 4.0 km · Saint-Cyr-l'École 5.0 km · Garches 5.0 km · Chaville 5.0 km · Marly-le-Roi 6.0 km · Saint-Cloud 6.0 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
Roman Catholic 47%none 33%Muslim 4%Protestant 2%

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 Le Chesnay (48.8222°, 2.1221°, elevation 122 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).