Climate Chart of Zermatt, Switzerland
Monthly data: Temperature °C, Rain (mm), Sunshine (h) · 2013–2023
For Zermatt, Switzerland, the climate data cover 2013–2023. The monthly mean temperature reaches its highest point at July with -4.5 °C, while the lowest monthly mean is recorded in January at -23.1 °C. These are monthly averages, not daytime highs, so they describe the broad temperature pattern rather than conditions on any particular day. Rainfall, sunshine and snowfall each show their own distinct monthly pattern, with the details below helping put those averages into context.
Climate overview
Temperature
Monthly mean temperatures are lowest in January at -23.1 °C, and reach their high in July at -4.5 °C. The mean across the calendar-month means is -14.2 °C; this unweighted figure summarizes the monthly averages rather than a day-weighted annual temperature. These figures do not show daytime maximums or the day-to-day range, so visitors should not treat them as a forecast for specific dates.
Snow
Mean daily snowfall is highest in November at 40.62 mm/day and lowest in July at 1.63 mm/day. The unweighted mean of the monthly daily averages is 19.04 mm/day. These amounts do not indicate the number of snowy days, snow depth or snow cover, so they cannot establish ground conditions or skiing suitability.
Rain
Mean daily rainfall is lowest in February at 0.00 mm/day, while the highest monthly mean occurs in July at 3.50 mm/day. The unweighted mean across the monthly daily averages is 1.15 mm/day. These are daily amounts, not monthly totals, and a lower average does not guarantee rain-free days or reveal how often rain occurs.
Sunshine
Mean daily sunshine duration reaches its high in July at 12.30 hours/day, and its low in December at 5.63 hours/day. Across the calendar-month means, the unweighted average is 8.87 hours/day. These figures describe average sunshine duration, not day length, and cannot promise the conditions on a particular sightseeing day.
Best Travel Time Guide for Zermatt, Switzerland: Ideal Seasons and Weather Insights
For visitors prioritising lower average rainfall, February is the conditional option: mean daily rainfall is 0.00 mm/day. This does not ensure dry weather or say how frequently rain falls, so flexible plans and suitable rain protection remain sensible. Rain preparation is especially relevant in July, when the mean daily amount reaches 3.50 mm/day. Those seeking the coolest monthly mean should look to January, at -23.1 °C; pack for cold conditions, while remembering that a monthly average is not a specific-day forecast. For daylight outdoor planning, mean daily sunshine peaks in July at 12.30 hours/day and is lowest in December at 5.63 hours/day. Sunshine duration is not day length, and these averages cannot guarantee clear skies. Snowfall averages also do not establish snow cover: the highest mean daily snowfall is 40.62 mm/day in November, which alone cannot determine whether routes or slopes have snow.
Climate Data Overview for Zermatt, Switzerland
Explore the comprehensive climate data for Zermatt, Switzerland. This detailed table provides valuable insights into temperature variations, precipitation levels, and seasonal changes, helping you understand the unique weather patterns of this region.
| Month | Average: Temperature °C | Rain (mm) / day | Snow (mm) / day | Sunshine (h) / day |
|---|---|---|---|---|
| Jan | -23.1 | 0.01 | 24.25 | 6.20 |
| Feb | -21.6 | 0.00 | 20.94 | 7.17 |
| Mar | -19.7 | 0.01 | 22.41 | 8.62 |
| Apr | -16.5 | 0.15 | 29.04 | 9.80 |
| May | -12.7 | 0.79 | 30.93 | 10.42 |
| Jun | -7.2 | 2.82 | 5.21 | 12.15 |
| Jul | -4.5 | 3.50 | 1.63 | 12.30 |
| Aug | -5.2 | 3.37 | 2.17 | 11.25 |
| Sep | -8.4 | 1.95 | 4.31 | 9.57 |
| Oct | -12.4 | 1.04 | 24.42 | 7.56 |
| Nov | -18.3 | 0.17 | 40.62 | 5.80 |
| Dec | -20.8 | 0.02 | 22.58 | 5.63 |
| Average | -14.2 | 1.15 | 19.04 | 8.87 |
