Wil weather in December

In December, Wil sees average daytime highs of 4°C and overnight lows near 0°C, with 98 mm of precipitation across 14 wet days and about 8.3 hours of daylight. It is the 11th-warmest and 6th-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 19% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 30 min at the start of December to 8 h 18 min by month's end. Set against the rest of the year, December is Wil's 11th-clearest and 4th-windiest month. For the whole year in context, see Wil's year-round climate.

Daytime high
11th warmest
Overnight low
3rd coldest
Precipitation
98 mm
14 wet days
Daylight
8 h 18 min
8:12 AM – 4:28 PM
Cloud cover
70%
11th clearest
Wind
7 km/h
4th windiest
Solar energy
1.02 kWh/m²
Travel score
0.0
out of 10

Wil is city and municipality in the canton of St. Gallen, Switzerland.

Density
1,151/km²
people per km²

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

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 4°C through the month.

A typical December day in Wil 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, December runs about 4°C cooler than November and on par with January.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
151
251
351
451
551
651
751
851
951
1050
1140
1240
1340
1440
1540
1640
1740
1840
1940
2040
2140
2240
2340
2440
2540
2640
2740
2840
294-1
304-1
314-1

How December really feels in Wil

Once humidity and wind are folded in, December 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 December is cold — wind chill drags the overnight "feels like" below the raw low.

Wil weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°8212.56.58.70.0
Feb / -1°7311.36.59.90.2
Mar10° / 8813.94.611.61.9
Apr14° / 9013.21.813.33.6
May18° / 10°13115.60.214.95.0
Jun21° / 14°13215.1015.75.8
Jul23° / 15°12814.8015.46.3
Aug23° / 15°12914014.16.3
Sep18° / 12°10612.1012.45.6
Oct14° / 9111.70.410.63.7
Nov / 9512.33.29.11.2
Dec / 98146.48.30.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23169
33169
43169
53367
63466
73466
83466
93565
103664
113664
123664
133664
143664
153664
163565
173565
183565
193466
203466
213466
223466
233565
243565
253565
263565
273565
283664
293664
303664
313664

Chance of precipitation in December

Any precipitationSnow

Wil gets around 98 mm of rain and snow over 14 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 45% and peaks near 48% on the wettest days, and about 6 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
14116
24117
34217
44217
54317
64318
74318
84418
94418
104519
114519
124620
134620
144721
154721
164721
174822
184822
194822
204722
214723
224723
234723
244723
254723
264723
274622
284622
294621
304521
314520

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December 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 December

Winds average 7 km/h in December.

Across December, daily wind ranges from about 7 km/h on the calmest days to 8 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
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in December

DaylightNight

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

Days shrink by about 12 minutes over December. Sunrise moves from 7:58 AM to 8:18 AM, and sunset from 4:29 PM to 4:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.57:584:29
28.57:594:29
38.58:004:29
48.58:014:28
58.48:024:28
68.48:034:28
78.48:044:28
88.48:054:28
98.48:064:27
108.38:074:27
118.38:084:27
128.38:094:27
138.38:104:27
148.38:114:28
158.38:114:28
168.38:124:28
178.38:134:28
188.38:134:28
198.28:144:29
208.28:154:29
218.28:154:30
228.28:164:30
238.28:164:30
248.28:164:31
258.28:174:32
268.38:174:32
278.38:174:33
288.38:184:34
298.38:184:34
308.38:184:35
318.38:184:36

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.02 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.02 kWh/m² to a high of 5.58 kWh/m² in June across the year — December's 1.02 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.1Dim
21.1Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.1Dim
81.1Dim
91.1Dim
101.0Dim
111.0Dim
121.0Dim
131.0Dim
141.0Dim
151.0Dim
161.0Dim
171.0Dim
181.0Dim
191.0Dim
201.0Dim
211.0Dim
221.0Dim
231.0Dim
241.0Dim
251.0Dim
261.0Dim
271.0Dim
281.0Dim
291.0Dim
301.0Dim
311.1Dim
Planning a trip in December

Is December a good time to visit Wil?

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

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
8th-best month of the year

December is a weaker month for outdoor sightseeing in Wil.

What to pack for Wil in December

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

In December, Wil sees daytime highs around 4°C and nights near 0°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 14 days see rain.

a warm layerrain geara heavy coat

UV index in Wil in December

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Wil peaks around July 15 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. 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
Feb2Low
Mar4Moderate
Apr5Moderate
May7High
Jun7Very high
Jul8Very high
Aug7High
Sep4Moderate
Oct3Moderate
Nov2Low
Dec1Low
Location & terrain

Where is Wil?

Wil sits at 47.5°N, 9.0°E, 569 m above sea level, in Switzerland. The nearest listed city is Frauenfeld, 15 km away.

HerisauSeen (Kreis 3)Oberwinterthur (Kreis 2)KreuzlingenWetzikonKonstanz

Topography around Wil

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

Within 3 km, the terrain around Wil has only modest variations in elevation — a maximum elevation change of 232 m around an average of 584 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 887 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,278 m.

The land around Wil is covered by grassland (38%) and trees (35%) within 3 km, trees (42%) and grassland (40%) within 16 km, and trees (43%) and grassland (34%) within 80 km.

3 km
232 m
16 km
887 m
80 km
3,278 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Frauenfeld 15 km · Gossau 17 km · Herisau 19 km · Seen (Kreis 3) 21 km · Oberwinterthur (Kreis 2) 22 km · Kreuzlingen 23 km · Wetzikon 24 km · Konstanz 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 Wil (47.4615°, 9.0455°, elevation 569 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).