Nyon weather in January

In January, Nyon sees average daytime highs of 4°C and overnight lows near -0°C, with 122 mm of precipitation across 13.4 wet days and about 8.8 hours of daylight. It is the 12th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 4°C through the month. The sky is clear or mostly clear about 20% 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 Nyon's 10th-clearest and 4th-windiest month. For the whole year in context, see Nyon's year-round climate.

Daytime high
12th warmest
Overnight low
-0°
1st coldest
Precipitation
122 mm
13.4 wet days
Daylight
8 h 48 min
8:21 AM – 5:08 PM
Cloud cover
70%
10th clearest
Wind
8 km/h
4th windiest
Solar energy
1.34 kWh/m²
Travel score
0.0
out of 10

Nyon is archaeological site in Nyon in the canton of Vaud, Suisse.

Air quality
Good
PM2.5 7.7 µg/m³ · 2020

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 4°C through the month.

A typical January day in Nyon reaches about 4°C in the afternoon and slips back to -0°C overnight — a 4°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 1°C cooler than February.

-5°10°151015202531
Avg high (°C)Avg low (°C)
140
240
340
440
540
640
740
840
940
1040
1140
1240
1340
1440
1540
1640
1740
1840
1940
2040
2140
2240
2340
2440
2540
2640
2740
2840
2940
3040
3140

How January really feels in Nyon

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.

Nyon weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°12213.48.48.80.0
Feb / 10312.18.3100.1
Mar / 11213.25.811.61.7
Apr13° / 10914.12.913.33.0
May16° / 13515.90.414.74.4
Jun20° / 13°12815.6015.55.5
Jul22° / 15°13715.6015.26.0
Aug22° / 15°13314.90146.1
Sep18° / 12°11813.2012.45.3
Oct14° / 12213.70.610.73.5
Nov / 130144.39.21.2
Dec / 14114.77.88.50.1

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 14% of January, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43169
53169
63169
73268
83367
93367
103466
113466
123466
133664
143664
153664
163664
173664
183565
193565
203565
213565
223565
233565
243565
253466
263466
273466
283367
293466
303466
313565

Chance of precipitation in January

Any precipitationSnow

Nyon gets around 122 mm of rain and snow over 13.4 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 44% and peaks near 48% on the wettest days, and about 8 days bring snow. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14827
24827
34826
44726
54726
64725
74625
84525
94525
104425
114426
124426
134427
144327
154328
164328
174329
184329
194229
204229
214230
224230
234229
244229
254229
264128
274128
284128
294128
304128
314128

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 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 8:25 AM to 8:09 AM, and sunset from 4:52 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.58:254:52
28.58:254:53
38.58:254:54
48.58:254:55
58.58:244:55
68.58:244:56
78.68:244:57
88.68:244:58
98.68:245:00
108.68:235:01
118.68:235:02
128.78:235:03
138.78:225:04
148.78:225:05
158.78:215:06
168.88:215:08
178.88:205:09
188.88:205:10
198.98:195:12
208.98:185:13
218.98:185:14
229.08:175:15
239.08:165:17
249.08:155:18
259.18:155:20
269.18:145:21
279.28:135:22
289.28:125:24
299.28:115:25
309.38:105:27
319.38:095:28

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.34 kWh/m².

For context, solar energy here swings from a low near 1.08 kWh/m² to a high of 5.84 kWh/m² in July across the year — January's 1.34 kWh/m² sits near the bottom.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.2Dim
81.2Dim
91.2Dim
101.2Dim
111.2Dim
121.3Dim
131.3Dim
141.3Dim
151.3Dim
161.3Dim
171.4Dim
181.4Dim
191.4Dim
201.4Dim
211.4Dim
221.5Dim
231.5Dim
241.5Dim
251.5Dim
261.6Dim
271.6Dim
281.6Dim
291.6Dim
301.7Dim
311.7Dim
Planning a trip in January

Is January a good time to visit Nyon?

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 Nyon.

What to pack for Nyon in January

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

In January, Nyon sees daytime highs around 4°C and nights near -0°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 Nyon 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 Nyon peaks around July 15 at about 9 (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 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar4Moderate
Apr5High
May7High
Jun7Very high
Jul9Very high
Aug7High
Sep5Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Nyon?

Nyon sits at 46.4°N, 6.2°E, 401 m above sea level, in Switzerland. The nearest listed city is Thonon-les-Bains, 18 km away.

MeyrinAnnemasseGenevaVernierLancyCarougeMorges

Topography around Nyon

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

Within 3 km, the terrain around Nyon has only modest variations in elevation — a maximum elevation change of 115 m around an average of 402 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,301 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,546 m.

The land around Nyon is covered by water (39%) and cropland (20%) within 3 km, trees (41%) and water (24%) within 16 km, and trees (53%) and grassland (31%) within 80 km.

3 km
115 m
16 km
1,301 m
80 km
4,546 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewater
January weather nearby: Thonon-les-Bains 18 km · Meyrin 21 km · Annemasse 21 km · Geneva 21 km · Vernier 22 km · Lancy 24 km · Carouge 24 km · Morges 24 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 Nyon (46.3832°, 6.2396°, elevation 401 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).