Mont Blanc de Cheilon

Mountain Alpine peak in Valais, part of Pennine Alps

Part of the Pennine Alps in Valais, Mont Blanc de Cheilon attracts alpinists for glacier routes, high‑altitude huts and technical climbs across rugged peaks and ice fields.

Main image

Mont Blanc de Cheilon is a 3,870-metre peak in the Pennine Alps of Valais, Switzerland, forming part of a glaciated massif above the Lac des Dix basin.

The mountain is a high-alpine objective with glacier travel and mixed climbing routes; approaches typically use alpine huts and crevassed glacier terrain. The surrounding area includes extensive glaciation and high mountain lakes that attract mountaineers and ski mountaineers.

The peak was first climbed in the 19th century during the period of early Alpine exploration; since then it has been part of local alpine mountaineering routes and glacier studies in the Swiss Alps.

Situated in the canton of Valais, Mont Blanc de Cheilon overlooks the Lac des Dix and lies within the high Pennine chain of Switzerland, accessible from valleys leading up into the central high Alps.

  • Alpine access: Part of the Pennine Alps in the canton of Valais and commonly climbed from huts on adjacent glacier routes during the summer mountaineering season.

What to See #

  • Glacier de Cheilon: Glacier de Cheilon descends the mountain's slopes and feeds into local glacial valleys; the massif is commonly accessed from trails around the Otemma and Cheilon glaciers.
Mont Blanc de Cheilon
Mont Blanc de Cheilon area, Valais, Switzerland (approaches from Arolla)
45.9932, 7.4174
Access depends on mountain hut bookings and route permits; typical Swiss alpine hut fees apply

How to Get to Mont Blanc de Cheilon #

Common approaches begin from the Arolla valley in Valais; access by regional train to Sion or Martigny and then local buses or drives to Arolla. Mountain hut reservations are essential for multi-day routes.

Tips for Visiting Mont Blanc de Cheilon #

  • Book mountain huts (refuges) well in advance during summer peak season.
  • Glacier travel is involved on many routes - use guides and proper gear for crevasse safety.
  • Check current route conditions and weather forecasts - alpine weather changes rapidly.

Best Time to Visit Mont Blanc de Cheilon #

Climbing and approach windows are typically in the high-summer months; glacier conditions require expertise and up-to-date information.

Summer climbing season
June-September · 0-12°C (alpine conditions)
Most accessible period for mountaineering with snow melting on lower slopes.

Weather & Climate near Mont Blanc de Cheilon #

Climate

Mont Blanc de Cheilon's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -14°C to 5°C. Semi-arid with limited rainfall, distributed fairly evenly throughout the year.

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

January

January is freezing with highs of -9°C and lows of -14°C. Moderate rainfall (32 mm), partly cloudy skies, and breezy conditions.

37 Poor

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-14° -9°
84%
Humidity
Very Humid

Weather

32 mm
Rainfall
7.2 m/s
Wind
Breezy
0.2
UV Index
Low
9.0h daylight

February

February is the coldest month with highs of -10°C and lows of -14°C. Light rainfall, partly cloudy skies, and breezy conditions.

39 Poor

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-15° -10°
84%
Humidity
Very Humid

Weather

29 mm
Rainfall
6.8 m/s
Wind
Breezy
0.3
UV Index
Low
10.2h daylight

March

March is freezing with highs of -9°C and lows of -14°C. The wettest month with 33 mm of rain, partly cloudy skies, and breezy conditions.

37 Poor

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-14° -9°
87%
Humidity
Very Humid

Weather

33 mm
Rainfall
7.0 m/s
Wind
Breezy
0.6
UV Index
Moderate
11.8h daylight

April

April is freezing with highs of -8°C and lows of -13°C. Light rainfall, mostly overcast skies, and breezy conditions.

35 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-13° -8°
83%
Humidity
Very Humid

Weather

22 mm
Rainfall
6.5 m/s
Wind
Breezy
1.0
UV Index
High
13.4h daylight

May

May is freezing with highs of -3°C and lows of -8°C. Light rainfall and mostly overcast skies.

41 Poor

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-8° -3°
78%
Humidity
Very Humid

Weather

23 mm
Rainfall
5.9 m/s
Wind
Light Breeze
1.4
UV Index
High
14.7h daylight

June

June is freezing with highs of 0°C and lows of -4°C. Light rainfall and partly cloudy skies.

46 Poor

Comfort

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

Weather

22 mm
Rainfall
5.7 m/s
Wind
Light Breeze
1.8
UV Index
Very High
15.4h daylight

July

July is cold with highs of 4°C and lows of 0°C. Light rainfall and partly cloudy skies.

58 Acceptable

Comfort

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

Weather

24 mm
Rainfall
5.6 m/s
Wind
Light Breeze
1.9
UV Index
Very High
15.1h daylight

August

August is cold with highs of 5°C and lows of 1°C. Light rainfall and partly cloudy skies.

58 Acceptable

Comfort

Feels Like Cold
C
Temperature
75%
Humidity
Very Humid

Weather

29 mm
Rainfall
5.1 m/s
Wind
Light Breeze
1.6
UV Index
Very High
13.9h daylight

September

September is cold with highs of 2°C and lows of -2°C. Light rainfall and partly cloudy skies.

58 Acceptable

Comfort

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

Weather

26 mm
Rainfall
5.7 m/s
Wind
Light Breeze
1.0
UV Index
High
12.4h daylight

October

October is freezing with highs of -2°C and lows of -5°C. The driest month with just 20 mm, partly cloudy skies, and breezy conditions.

43 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-5° -2°
80%
Humidity
Very Humid

Weather

20 mm
Rainfall
6.0 m/s
Wind
Breezy
0.5
UV Index
Moderate
10.8h daylight

November

November is freezing with highs of -5°C and lows of -10°C. Light rainfall, partly cloudy skies, and breezy conditions.

39 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-10° -5°
85%
Humidity
Very Humid

Weather

29 mm
Rainfall
6.8 m/s
Wind
Breezy
0.2
UV Index
Low
9.4h daylight

December

December is freezing with highs of -8°C and lows of -12°C. Light rainfall, partly cloudy skies, and breezy conditions.

39 Poor

Comfort

-10°
Feels Like Freezing
-10°C
Temperature
-12° -8°
83%
Humidity
Very Humid

Weather

23 mm
Rainfall
7.3 m/s
Wind
Breezy
0.1
UV Index
Low
8.6h daylight

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