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Grisons

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Grisons Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

Grisons year round climate

  • Spring (March–May): Average -34–45°F, cold and humid climate, frequent rain, snow may persist in mountain areas until May. Common activities: Skiing (if sufficient snow), hiking (at lower altitudes), enjoying the post-snowmelt scenery. Recommended clothing: Waterproof jacket, warm clothing, thick socks, hiking boots.
  • Summer (June–August): Average 52–56°F, mild climate, but temperatures vary greatly in mountain areas, less rainfall. Common activities: Hiking, mountaineering, cycling, exploring mountain lakes. Recommended clothing: Breathable and sweat-wicking clothing, sun protection clothing, waterproof jacket (in case of afternoon thunderstorms), comfortable hiking shoes.
  • Autumn (September–November): Average 8.7–-35.2°F, cooler climate, October has the most rainfall, snow may begin to fall in mountain areas. Common activities: Viewing autumn leaves (if the altitude is low enough), hiking (pay attention to weather changes), enjoying the tranquil atmosphere of the mountains. Recommended clothing: Warm jacket, waterproof jacket, comfortable shoes.
  • Winter (December–February): Average -7.3–-39.4°F, cold climate, more snowfall, suitable for winter sports. Common activities: Skiing, snowboarding, snowshoeing, ice and snow festival activities. Recommended clothing: Heavy warm jacket, waterproof snow pants, warm hat, gloves, scarf, waterproof snow boots.

Grisons climatological average

Annual average temperature: approx. 38.3°F / Annual rainfall: approx. 898 mm / Summer humidity: 60%–70% / Rainiest month: October

Grisons monthly average temperature and precipitation

Month
Air temperature (°F)
Precipitation (mm)
January
18.9°F
43
February
24.6°F
72.2
March
29.7°F
77.1
April
35.1°F
80.1
May
45.9°F
102.2
June
52.9°F
42.9
July
56.7°F
64.3
August
55.9°F
81.8
September
47.7°F
46.6
October
42.6°F
139.3
November
28.8°F
72.5
December
21.6°F
76.8

Grisons weather for the next seven days

9/6
Sunday
Sunny
72.1°F/48.2°F
9/7
Monday
Sunny
73.6°F/52.9°F
9/8
Tuesday
Sunny
75.1°F/52.4°F
9/9
Wednesday
Light rain shower
56.2°F/49.5°F
9/10
Thursday
Light rain shower
61.6°F/43.3°F
9/11
Friday
Sunny
63.1°F/41.8°F
9/12
Saturday
Sunny
66.2°F/42.2°F