How warm is it in Zermatt in December?

Daytime highs averaged -3.1 °C, night-time lows -10.8 °C. The highest value of the past 10 years was 2.7 °C (10 Dec 2016), the lowest -22.9 °C (11 Dec 2022).

How often does it rain in Zermatt in December?

On average there were 14.0 rain days (at least 1 mm) with 88.8 mm of precipitation in total.

Photo: Chensiyuan · CC BY-SA 4.0

🇨🇭 Weather in Zermatt in December

This is what the weather in Zermatt (Valais, Switzerland) was like in December in 2016–2025.

Key facts at a glance

Prevailing weather: Partly cloudy

Avg. daytime high

-3.1 °C

-5.2 °C – -1.9 °C

Avg. night-time low

-10.8 °C

-14.2 °C – -9.2 °C

Avg. rain days in period

14.0

45 % of days · ≥ 1.0 mm

Avg. precipitation in period

88.8 mm

5.1 mm – 161 mm

Avg. cloud cover

77 %

This data source has no sunshine hours – average cloud cover shown instead.

Avg. sea temperature

–

No sea nearby – no sea temperature.

Extremes: Highest temperature 2.7 °C (10 Dec 2016) · Lowest temperature -22.9 °C (11 Dec 2022) · Avg. daily peak wind 13 km/h

Weather mix of all days

9Sunny
89Partly cloudy
72Cloudy
85Light rain
55Rain

Summary

On average -3.1 °C during the day and -10.8 °C at night.
On average 14.0 rain days (Rain day = at least 1.0 mm of precipitation) with 88.8 mm of precipitation in total.
Prevailing: Partly cloudy.
Warmest year: 2025 (avg. -1.9 °C), coolest: 2017 (avg. -5.2 °C).
Wettest year: 2023 (161 mm), driest: 2016 (5.1 mm).
Extremes: 2.7 °C on 10 Dec 2016 and -22.9 °C on 11 Dec 2022.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2025
Avg. max-1.9°Avg. min-9.2°
Rain days
9 Rain days
Precipitation
28.2 mm
Avg. cloud cover
75 % cloudy
Sea temperature
–
Max 1.4 °C · Min -14.9 °C
2024
Avg. max-3.0°Avg. min-11.1°
Rain days
11 Rain days
Precipitation
74.7 mm
Avg. cloud cover
76 % cloudy
Sea temperature
–
Max 2.0 °C · Min -17.8 °C
2023
Avg. max-2.4°Avg. min-10.1°
Rain days
15 Rain days
Precipitation
161 mm
Avg. cloud cover
82 % cloudy
Sea temperature
–
Max 2.4 °C · Min -20.4 °C
2022
Avg. max-3.1°Avg. min-10.8°
Rain days
16 Rain days
Precipitation
86.3 mm
Avg. cloud cover
86 % cloudy
Sea temperature
–
Max 1.3 °C · Min -22.9 °C
2021
Avg. max-3.1°Avg. min-10.8°
Rain days
16 Rain days
Precipitation
112 mm
Avg. cloud cover
76 % cloudy
Sea temperature
–
Max 2.4 °C · Min -18.6 °C
2020
Avg. max-4.5°Avg. min-11.9°
Rain days
20 Rain days
Precipitation
59.2 mm
Avg. cloud cover
86 % cloudy
Sea temperature
–
Max 0.8 °C · Min -21.8 °C
2019
Avg. max-2.8°Avg. min-10.7°
Rain days
17 Rain days
Precipitation
117 mm
Avg. cloud cover
77 % cloudy
Sea temperature
–
Max 0.2 °C · Min -16.1 °C
2018
Avg. max-3.0°Avg. min-10.1°
Rain days
17 Rain days
Precipitation
121 mm
Avg. cloud cover
84 % cloudy
Sea temperature
–
Max 1.2 °C · Min -20.3 °C
2017
Avg. max-5.2°Avg. min-14.2°
Rain days
17 Rain days
Precipitation
122 mm
Avg. cloud cover
80 % cloudy
Sea temperature
–
Max 1.4 °C · Min -20.4 °C
2016
Avg. max-2.0°Avg. min-9.2°
Rain days
2 Rain days
Precipitation
5.1 mm
Avg. cloud cover
49 % cloudy
Sea temperature
–
Max 2.7 °C · Min -13.1 °C

Frequently asked questions

How warm is it in Zermatt in December?: Daytime highs averaged -3.1 °C, night-time lows -10.8 °C. The highest value of the past 10 years was 2.7 °C (10 Dec 2016), the lowest -22.9 °C (11 Dec 2022).
How often does it rain in Zermatt in December?: On average there were 14.0 rain days (at least 1 mm) with 88.8 mm of precipitation in total.

Check your exact travel dates

Choose your travel period – we show the weather for exactly those days.

Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)