Piz Gannaretsch Mountain

Swiss Alpine peak in Graubünden popular with hikers

A Swiss alpine summit near the Lukmanier region, Piz Gannaretsch appeals to hikers and ski‑tourers with high‑alpine routes, ridgelines and passes linking Graubünden valleys.

Main image

Piz Gannaretsch at a Glance#

Address: Piz Gannaretsch, canton of Graubünden (Grisons), Switzerland

Tips for Visiting Piz Gannaretsch#

  • Climb or approach Piz Gannaretsch in summer (July-September) when snow is minimal and route-finding over alpine terrain is easier; start very early to avoid typical afternoon storms.
  • Check recent conditions and route descriptions from the Swiss Alpine Club (SAC) or local mountain guides - some approaches include exposed or pathless sections where up-to-date information matters.
  • If you plan overnighting, use nearby SAC huts or established alpine accommodation rather than improvising campsites; this both reduces environmental impact and gives safer staging for summit attempts.
  • Allow extra time for descent and factor in sudden weather changes - even in summer the high alpine environment in Graubünden can change rapidly, making late returns risky.

Best Time to Visit Piz Gannaretsch#

Visit in midsummer for the safest, most reliable hiking and snow-free routes; outside that window expect snow and technical conditions.

Summer (hiking season)
June-September · Alpine: around 0-15 °C depending on elevation
Most trails are snow-free and accessible; best window for day hikes and ridge routes.
Late autumn/winter (snow and ice)
October-May · Often below freezing at higher elevations
Cold and snowy conditions make routes technical-suitable for experienced mountaineers and winter sports with proper equipment.

Weather & Climate near Piz Gannaretsch#

Climate

Piz Gannaretsch's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -12°C to 7°C. Abundant rainfall (1285 mm/year), wettest in July, distributed fairly evenly throughout the year.

Best Time to Visit
AugustJulySeptember
Temperature & Rainfall
Temperature Range
27°
Warmest Month
-30°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -6°C and lows of -11°C. Significant rainfall (101 mm), partly cloudy skies, and breezy conditions.

29 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-11° -7°
90%
Humidity
Very Humid

Weather

101 mm
Rainfall
6.5 m/s
Wind
Breezy
0.2
UV Index
Low
8.9h daylight

February

February is the coldest month with highs of -7°C and lows of -12°C. Regular rainfall (88 mm), partly cloudy skies, and breezy conditions.

31 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-12° -7°
90%
Humidity
Very Humid

Weather

88 mm
Rainfall
6.0 m/s
Wind
Breezy
0.3
UV Index
Low
10.2h daylight

March

March is freezing with highs of -6°C and lows of -11°C. Significant rainfall (104 mm), partly cloudy skies, and breezy conditions.

29 Poor

Comfort

-9°
Feels Like Freezing
-9°C
Temperature
-11° -6°
90%
Humidity
Very Humid

Weather

104 mm
Rainfall
6.0 m/s
Wind
Breezy
0.7
UV Index
Moderate
11.8h daylight

April

April is freezing with highs of -5°C and lows of -9°C. Significant rainfall (109 mm) and mostly overcast skies.

27 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-9° -5°
86%
Humidity
Very Humid

Weather

109 mm
Rainfall
5.6 m/s
Wind
Light Breeze
1.0
UV Index
High
13.4h daylight

May

May is freezing with highs of 0°C and lows of -5°C. Regular rainfall (98 mm) and mostly overcast skies.

33 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-5°
82%
Humidity
Very Humid

Weather

98 mm
Rainfall
5.0 m/s
Wind
Light Breeze
1.3
UV Index
High
14.8h daylight

June

June is cold with highs of 4°C and lows of -2°C. Significant rainfall (116 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
-2°
78%
Humidity
Very Humid

Weather

116 mm
Rainfall
4.7 m/s
Wind
Light Breeze
1.7
UV Index
Very High
15.6h daylight

July

July is cold with highs of 7°C and lows of 2°C. The wettest month with heavy rain (127 mm) and partly cloudy skies.

44 Poor

Comfort

Feels Like Cold
C
Temperature
78%
Humidity
Very Humid

Weather

127 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.7
UV Index
Very High
15.2h daylight

August

August is cold with highs of 7°C and lows of 2°C. Significant rainfall (122 mm) and partly cloudy skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
80%
Humidity
Very Humid

Weather

122 mm
Rainfall
4.2 m/s
Wind
Light Breeze
1.4
UV Index
High
14.0h daylight

September

September is cold with highs of 5°C and lows of 0°C. Significant rainfall (110 mm) and partly cloudy skies.

44 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
82%
Humidity
Very Humid

Weather

110 mm
Rainfall
4.9 m/s
Wind
Light Breeze
1.0
UV Index
Moderate
12.4h daylight

October

October is freezing with highs of 1°C and lows of -4°C. Significant rainfall (102 mm) and partly cloudy skies.

36 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-4°
86%
Humidity
Very Humid

Weather

102 mm
Rainfall
5.6 m/s
Wind
Light Breeze
0.5
UV Index
Low
10.7h daylight

November

November is freezing with highs of -4°C and lows of -8°C. Significant rainfall (107 mm), partly cloudy skies, and breezy conditions.

33 Poor

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-8° -4°
90%
Humidity
Very Humid

Weather

107 mm
Rainfall
6.2 m/s
Wind
Breezy
0.2
UV Index
Low
9.3h daylight

December

December is freezing with highs of -5°C and lows of -10°C. Significant rainfall (101 mm), partly cloudy skies, and breezy conditions.

29 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-10° -5°
88%
Humidity
Very Humid

Weather

101 mm
Rainfall
6.5 m/s
Wind
Breezy
0.1
UV Index
Low
8.5h daylight

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