Weisshorn

Mountain Prominent Swiss Alpine peak with sharp pyramidal summit

The Weisshorn in Valais is a classic 4,000-metre peak of the Pennine Alps; climbers and experienced alpinists attempt its ridges for technical ascents and high-alpine views.

Main image

The Weisshorn is a 4,506-metre peak in the Pennine Alps in the canton of Valais, Switzerland. It is noted for its steep, pyramidal profile and is prominent in the skyline between the Mattertal and the Val d’Anniviers.

The mountain attracts experienced mountaineers for its long ridges and mixed rock-and-ice routes. The summit provides expansive views across surrounding four-thousanders including the Matterhorn and Monte Rosa on clear days.

The first recorded ascent was made in 1861 by John Tyndall and party. Since then the mountain has remained principally a mountaineering objective rather than a ski or tourist summit.

The Weisshorn sits between the valleys leading to the villages of Zinal and Randa in Valais, with approach routes starting from valley trailheads and mountain huts in both valleys.

  • Climbing note: The peak is a classical high-Alpine climb and serious technical routes require solid glacier and rock-climbing experience.

What to See #

  • Summit (4,506 m): The summit reaches an elevation of 4,506 metres and is the defining high point of the massif, offering long alpine ridges and panoramic views across the Pennine Alps.
  • Approach valleys: Two principal approach valleys are Val d'Anniviers to the west and the Mattertal to the east, which provide access routes and base villages for climbs.
Weisshorn
Weisshorn, canton of Valais, Switzerland (summit elevation 4,506 m)
46.1013, 7.7161

How to Get to Weisshorn #

Approaches to the Weisshorn are usually made from Zermatt (south) or from the Turtmann valley (east). Zermatt is reached by train from Visp; from Zermatt, mountaineers travel to trailheads via mountain lifts and footpaths. Climbs require alpine experience or the hiring of a certified mountain guide.

Tips for Visiting Weisshorn #

  • Approach from Zermatt or Randa and give extra time for the final alpine approach - the Weisshorn's classic ridges are serious climbs.
  • If not climbing, take in the mountain from the Gornergrat or from the Turtmann valley to appreciate its pyramidal profile.
  • Hire a certified mountain guide for any ascent: the normal routes are long, exposed and require alpine experience.

Best Time to Visit Weisshorn #

Alpinists usually attempt the Weisshorn in mid-summer when weather and objective snow conditions are most favorable; non-climbers should visit surrounding viewpoints year-round for dramatic profiles.

Summer climbing season
July-September · -5-10°C (summit); 5-20°C (valley)
Most stable weather window for technical ascents, though storms can still develop quickly.
Late spring/early autumn
June and September-October · -10-5°C (high alpine), variable in valleys
Shoulder seasons can offer quieter approaches but more objective snow hazards.

Weather & Climate near Weisshorn #

Climate

Weisshorn's climate is classified as Tundra - Tundra climate with freezing summers (peaking in August) and freezing winters (coldest in March). Temperatures range from -18°C to 1°C. Semi-arid with limited rainfall.

Best Time to Visit
JulyJuneAugust
Temperature & Rainfall
Temperature Range
23°
Warmest Month
-29°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -13°C and lows of -17°C. Moderate rainfall (41 mm), mostly overcast skies, and windy conditions.

31 Poor

Comfort

-15°
Feels Like Freezing
-15°C
Temperature
-17° -13°
84%
Humidity
Very Humid

Weather

41 mm
Rainfall
11.4 m/s
Wind
Windy
0.1
UV Index
Low
8.9h daylight

February

February is freezing with highs of -14°C and lows of -18°C. Moderate rainfall (35 mm), mostly overcast skies, and windy conditions.

31 Poor

Comfort

-16°
Feels Like Freezing
-16°C
Temperature
-18° -14°
84%
Humidity
Very Humid

Weather

35 mm
Rainfall
10.1 m/s
Wind
Windy
0.3
UV Index
Low
10.2h daylight

March

March is the coldest month with highs of -14°C and lows of -18°C. The wettest month with 43 mm of rain, partly cloudy skies, and windy conditions.

35 Poor

Comfort

-16°
Feels Like Freezing
-16°C
Temperature
-18° -14°
87%
Humidity
Very Humid

Weather

43 mm
Rainfall
10.2 m/s
Wind
Windy
0.6
UV Index
Moderate
11.8h daylight

April

April is freezing with highs of -13°C and lows of -17°C. Light rainfall, partly cloudy skies, and breezy conditions.

37 Poor

Comfort

-15°
Feels Like Freezing
-15°C
Temperature
-17° -13°
83%
Humidity
Very Humid

Weather

25 mm
Rainfall
9.0 m/s
Wind
Breezy
1.0
UV Index
High
13.4h daylight

May

May is freezing with highs of -8°C and lows of -12°C. Light rainfall, mostly overcast skies, and breezy conditions.

35 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-12° -8°
78%
Humidity
Very Humid

Weather

22 mm
Rainfall
8.0 m/s
Wind
Breezy
1.4
UV Index
High
14.8h daylight

June

June is freezing with highs of -4°C and lows of -8°C. Light rainfall, partly cloudy skies, and breezy conditions.

43 Poor

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-8° -4°
75%
Humidity
Very Humid

Weather

24 mm
Rainfall
7.7 m/s
Wind
Breezy
1.7
UV Index
Very High
15.6h daylight

July

July is freezing with highs of 0°C and lows of -4°C. Light rainfall, partly cloudy skies, and breezy conditions.

44 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-4° -1°
75%
Humidity
Very Humid

Weather

29 mm
Rainfall
7.6 m/s
Wind
Breezy
1.8
UV Index
Very High
15.2h daylight

August

August is freezing with highs of 1°C and lows of -3°C. Moderate rainfall (30 mm), partly cloudy skies, and breezy conditions.

42 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-3°
75%
Humidity
Very Humid

Weather

30 mm
Rainfall
6.6 m/s
Wind
Breezy
1.5
UV Index
High
14.0h daylight

September

September is freezing with highs of -3°C and lows of -5°C. Moderate rainfall (30 mm), partly cloudy skies, and breezy conditions.

41 Poor

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-5° -3°
78%
Humidity
Very Humid

Weather

30 mm
Rainfall
7.5 m/s
Wind
Breezy
1.0
UV Index
Moderate
12.4h daylight

October

October is freezing with highs of -6°C and lows of -9°C. The driest month with just 20 mm, partly cloudy skies, and breezy conditions.

39 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-9° -6°
80%
Humidity
Very Humid

Weather

20 mm
Rainfall
8.5 m/s
Wind
Breezy
0.5
UV Index
Moderate
10.7h daylight

November

November is freezing with highs of -10°C and lows of -13°C. Moderate rainfall (33 mm), mostly overcast skies, and windy conditions.

31 Poor

Comfort

-11°
Feels Like Freezing
-11°C
Temperature
-13° -10°
85%
Humidity
Very Humid

Weather

33 mm
Rainfall
10.1 m/s
Wind
Windy
0.2
UV Index
Low
9.3h daylight

December

December is freezing with highs of -11°C and lows of -16°C. Light rainfall, mostly overcast skies, and windy conditions.

33 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-16° -11°
83%
Humidity
Very Humid

Weather

29 mm
Rainfall
11.2 m/s
Wind
Windy
0.1
UV Index
Low
8.5h daylight

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