Sierre weather in January

In January, Sierre sees average daytime highs of -5°C and overnight lows near -14°C, with 118 mm of precipitation across 12.2 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 -5°C through the month. The sky is clear or mostly clear about 34% 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 Sierre's 6th-clearest and 2nd-windiest month. For the whole year in context, see Sierre's year-round climate.

Daytime high
-5°
12th warmest
Overnight low
-14°
1st coldest
Precipitation
118 mm
12.2 wet days
Daylight
8 h 48 min
8:15 AM – 5:03 PM
Cloud cover
58%
6th clearest
Wind
5 km/h
2nd windiest
Solar energy
1.7 kWh/m²
Travel score
0.0
out of 10

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 Sierre reaches about -5°C in the afternoon and slips back to -14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -11°C and -0°C. Set against its neighbours, January runs about 1°C cooler than December and about 3°C cooler than February.

-20°-10°151015202531
Avg high (°C)Avg low (°C)
1-5-14
2-6-14
3-6-14
4-6-14
5-6-14
6-6-14
7-6-14
8-6-14
9-6-14
10-5-14
11-5-14
12-5-14
13-5-14
14-5-14
15-5-14
16-5-14
17-5-14
18-5-14
19-5-14
20-5-14
21-5-14
22-5-14
23-5-14
24-5-14
25-5-14
26-5-14
27-5-14
28-4-13
29-4-13
30-4-13
31-4-13

How January really feels in Sierre

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
31 feel bitter (≤ -10°C)

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

Sierre 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-5° / -14°11812.213.18.80.0
Feb-2° / -12°9811.411.8100.0
Mar / -7°10113.113.111.60.0
Apr / -3°10613.510.913.30.4
May11° / 13816.46.214.72.1
Jun15° / 13116.71.515.53.9
Jul17° / 12716.10.815.25.0
Aug17° / 11913.80.7145.2
Sep13° / 10612.82.412.33.6
Oct / -1°10212.36.210.71.6
Nov / -8°12213.111.69.20.0
Dec-4° / -13°12513.1148.50.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 11% of January, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34357
44357
54357
64456
74456
84555
94555
104654
114654
124753
134753
144753
154753
164753
174753
184852
194852
204852
214753
224753
234753
244753
254654
264654
274555
284654
294654
304654
314555

Chance of precipitation in January

Any precipitationSnow

Sierre gets around 118 mm of rain and snow over 12.2 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 39% and peaks near 43% on the wettest days, and about 13 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14345
24345
34345
44245
54244
64144
74143
84043
93942
103941
113841
123841
133841
143840
153740
163740
173740
183740
193740
203741
213841
223841
233841
243841
253841
263841
273841
283941
293941
303941
313941

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 5 km/h in January.

Across January, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 8:19 AM to 8:03 AM, and sunset from 4:47 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.58:194:47
28.58:194:48
38.58:194:49
48.58:194:50
58.58:194:51
68.58:194:52
78.68:194:53
88.68:184:54
98.68:184:55
108.68:184:56
118.78:184:57
128.78:174:58
138.78:174:59
148.78:165:00
158.88:165:02
168.88:155:03
178.88:155:04
188.98:145:05
198.98:145:07
208.98:135:08
219.08:125:09
229.08:125:11
239.08:115:12
249.18:105:13
259.18:095:15
269.18:085:16
279.28:075:18
289.28:065:19
299.38:055:20
309.38:045:22
319.38:035:23

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 1.7 kWh/m².

For context, solar energy here swings from a low near 1.38 kWh/m² to a high of 6 kWh/m² in June across the year — January's 1.7 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
11.4Dim
21.4Dim
31.4Dim
41.5Dim
51.5Dim
61.5Dim
71.5Dim
81.5Dim
91.5Dim
101.6Dim
111.6Dim
121.6Dim
131.6Dim
141.6Dim
151.7Dim
161.7Dim
171.7Dim
181.7Dim
191.8Dim
201.8Dim
211.8Dim
221.9Dim
231.9Dim
241.9Dim
251.9Dim
262.0Dim
272.0Moderate
282.0Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in January

Is January a good time to visit Sierre?

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

0.0
Sightseeing
8th-best month of the year
0.0
Beach & pool
6th-best month of the year

January is a weaker month for outdoor sightseeing in Sierre.

What to pack for Sierre in January

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

In January, Sierre sees daytime highs around -5°C and nights near -14°C. Pack a warm layer and a heavy coat. Worth having: rain gear. About 12 days see rain.

a warm layera heavy coatrain gear

UV index in Sierre 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 Sierre peaks around July 16 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 16UV 9Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar5High
Apr7High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep6High
Oct4Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Sierre?

Sierre sits at 46.3°N, 7.5°E, 528 m above sea level, in Switzerland. The nearest listed city is Sitten, 16 km away.

ZermattMartigny-VilleLauterbrunnenMontheyMontreuxInterlakenThun

Topography around Sierre

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

Within 3 km, the terrain around Sierre has large variations in elevation — a maximum elevation change of 1,154 m around an average of 747 m above sea level; within 16 km, extreme variations in elevation — a maximum elevation change of 2,920 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,591 m.

The land around Sierre is covered by trees (62%) and artificial surfaces (20%) within 3 km, trees (40%) and grassland (33%) within 16 km, and trees (40%) and grassland (35%) within 80 km.

3 km
1,154 m
16 km
2,920 m
80 km
4,591 m
treesgrasslandcroplandartificial surfacesbare terrainsnow and icewatermoss and lichen
January weather nearby: Sitten 16 km · Zermatt 34 km · Martigny-Ville 41 km · Lauterbrunnen 44 km · Monthey 45 km · Montreux 50 km · Interlaken 50 km · Thun 51 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 Sierre (46.2919°, 7.5356°, elevation 528 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).