ClimateExplore the planning map
Climate · St. Moritz

St. Moritz in August

Mild and wet, as the days shorten.

Typical weather, averaged over 30 years

August in St. Moritz is mild: highs near 65°F, lows near 42°F. Rain falls on about four days a week, and the days shorten by 1 hour 25 minutes from the first week to the last.August in St. Moritz is mild: highs near 18°C, lows near 6°C. Rain falls on about four days a week, and the days shorten by 1 hour 25 minutes from the first week to the last.

High
65°F18°Caverage
Low
42°F6°Caverage
Wet days
4a week · 61% of days
Daylight
14h 06mon average

Is August a good time to visit St. Moritz?

Yes. August is one of St. Moritz's best months (July to August).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How August sits in the year

week by week

Temperature

Highs near 65°F in August, against 27°F to 65°F through the year.Highs near 18°C in August, against -3°C to 18°C through the year.

Chance of a wet day

61% of days in August, against 40% to 69% through the year.

Cloud cover

51% cover in August, against 47% to 64% through the year.

Daylight

14h 06m in August, against 8h 38m to 15h 45m through the year.

Week by week, lightly smoothed, with August shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. July65°18°low 41°low 5°5 wet days a weekRain on about five days a week.
  2. August65°18°low 42°low 6°4 wet days a weekRain on about four days a week.
  3. September58°14°low 36°low 2°3 wet days a weekRain on about three days a week.

Where St. Moritz sits, in August

Europe/Zurich
this place
typical high in August 40°F4°C95°F35°C
Sunrise, mid-August
6:18 AMsets 8:33 PM
Above the sea
1,830 mhigh country
Latitude
46.5°Nnorthern hemisphere
Nearest of ours
Arosa34 km north

The land around St. Moritz, shaded by its typical high in August, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Switzerland in August

high · low · wet days
See August on the planning mapThe whole year in St. Moritz

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest St. Moritz. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,830 m) against the climate model's (2,399 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (1,830 m) against the climate model's (2,399 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.