Lancy weather in January

In January, Lancy sees average daytime highs of 5°C and overnight lows near -2°C, with 126 mm of precipitation across 12.8 wet days and about 8.8 hours of daylight. It is the 12th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 5°C through the month. The sky is clear or mostly clear about 26% of the time in January, and the air most often feels dry.

Daylight stretches from about 8 h 30 min at the start of January to 9 h 18 min by month's end. Set against the rest of the year, January is Lancy's 8th-clearest and 4th-windiest month. For the whole year in context, see Lancy's year-round climate.

Daytime high
12th warmest
Overnight low
-2°
1st coldest
Precipitation
126 mm
12.8 wet days
Daylight
8 h 48 min
8:21 AM – 5:09 PM
Cloud cover
65%
8th clearest
Wind
7 km/h
4th windiest
Solar energy
1.39 kWh/m²
Travel score
0.0
out of 10

Lancy is Switzerland.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 5°C through the month.

A typical January day in Lancy reaches about 5°C in the afternoon and slips back to -2°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 9°C. Set against its neighbours, January runs on par with December and about 2°C cooler than February.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
15-1
25-1
35-1
45-1
55-1
65-1
75-1
85-1
95-1
105-1
115-1
125-1
135-1
145-1
155-1
165-1
175-2
185-2
195-2
205-2
214-2
224-2
234-2
244-2
254-2
265-2
275-2
285-2
295-2
305-2
315-2

How January really feels in Lancy

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.

Lancy 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 / -2°12612.87.38.80.0
Feb / -1°10711.26.6100.4
Mar10° / 11912.54.411.62.4
Apr14° / 11513.42.213.33.7
May18° / 14215.90.314.74.9
Jun21° / 12°13014.4015.55.9
Jul24° / 14°13113.5015.26.6
Aug23° / 13°12913.20146.6
Sep19° / 10°12112012.35.7
Oct14° / 12812.90.510.73.9
Nov / 13613.23.69.21.4
Dec / -1°14713.56.88.50.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 12% of January, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13565
23664
33664
43664
53664
63565
73763
83763
93862
103862
113961
123961
133961
144060
154060
164060
174060
184060
194060
204060
214060
224060
233961
243961
253961
263862
273862
283961
293862
303862
313961

Chance of precipitation in January

Any precipitationSnow

Lancy gets around 126 mm of rain and snow over 12.8 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 41% and peaks near 45% on the wettest days, and about 7 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14524
24524
34524
44523
54423
64422
74322
84322
94222
104222
114222
124223
134123
144124
154124
164124
174025
184025
194025
204026
214026
224026
234026
244026
254025
263925
273925
283924
293924
303924
314024

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 7 km/h in January.

Across January, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 8 h 30 min at the start of January to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over January. Sunrise moves from 8:24 AM to 8:09 AM, and sunset from 4:53 PM to 5:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.58:244:53
28.58:244:54
38.58:244:55
48.58:244:56
58.58:244:57
68.68:244:58
78.68:244:59
88.68:245:00
98.68:245:01
108.68:235:02
118.78:235:03
128.78:235:04
138.78:225:05
148.78:225:06
158.88:215:08
168.88:215:09
178.88:205:10
188.98:205:11
198.98:195:13
208.98:185:14
219.08:185:15
229.08:175:17
239.08:165:18
249.18:155:19
259.18:145:21
269.18:145:22
279.28:135:24
289.28:125:25
299.38:115:26
309.38:105:28
319.38:095:29

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.39 kWh/m².

For context, solar energy here swings from a low near 1.12 kWh/m² to a high of 5.93 kWh/m² in July across the year — January's 1.39 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.2Dim
41.2Dim
51.2Dim
61.2Dim
71.2Dim
81.2Dim
91.2Dim
101.3Dim
111.3Dim
121.3Dim
131.3Dim
141.3Dim
151.4Dim
161.4Dim
171.4Dim
181.4Dim
191.4Dim
201.5Dim
211.5Dim
221.5Dim
231.5Dim
241.6Dim
251.6Dim
261.6Dim
271.6Dim
281.7Dim
291.7Dim
301.7Dim
311.8Dim
Planning a trip in January

Is January a good time to visit Lancy?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
8th-best month of the year

January is a weaker month for outdoor sightseeing in Lancy.

What to pack for Lancy in January

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

In January, Lancy sees daytime highs around 5°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 13 days see rain.

a warm layera heavy coatrain gear

UV index in Lancy 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 Lancy peaks around July 15 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 15UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5Moderate
May7High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low

Air quality in Lancy 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 Lancy is worst in April — around 15 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1015 µg/m³Nov 1210 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb12Moderate
Mar15Moderate
Apr15Moderate
May13Moderate
Jun15Moderate
Jul11Good
Aug11Good
Sep11Good
Oct10Good
Nov10Good
Dec11Good
Location & terrain

Where is Lancy?

Lancy sits at 46.2°N, 6.1°E, 421 m above sea level, in Switzerland. The nearest listed city is Onex, 1.0 km away.

NyonAnnecy-le-Vieux

Topography around Lancy

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

Within 3 km, the terrain around Lancy has only modest variations in elevation — a maximum elevation change of 86 m around an average of 406 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,383 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,606 m.

The land around Lancy is covered by artificial surfaces (47%) and trees (37%) within 3 km, trees (43%) and grassland (23%) within 16 km, and trees (53%) and grassland (29%) within 80 km.

3 km
86 m
16 km
1,383 m
80 km
4,606 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewater
January weather nearby: Onex 1.0 km · Carouge 2.0 km · Geneva 3.0 km · Vernier 4.0 km · Meyrin 6.0 km · Annemasse 10 km · Nyon 24 km · Annecy-le-Vieux 30 km

Switzerland travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / J
230 V · 50 Hz
Prices
≈ 112% of US
price level, 2025
GDP per capita
$114,769
2025
Happiness
7.0 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.6
per 100k, 2023
Road deaths
2.2
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 564
Religion
Roman Catholic 34%none 29%Protestant 23%other Christian 6%

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 Lancy (46.1898°, 6.1144°, elevation 421 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).