Mont Ruan

Mountain Granite peak in Chablais Alps near Switzerland

Mont Ruan sits on the French-Swiss frontier in the Chablais area; it attracts experienced hikers and climbers seeking remote routes, rocky summits and watershed viewpoints.

Main image
Mont Ruan
46.1243, 6.9030

Tips for Visiting Mont Ruan #

  • Plan climbs for late summer (July-September) when high passes and rocky couloirs are generally free of snow and more stable.
  • Approach early in the day to reduce exposure to afternoon thunderstorms and stonefall; early starts also make glacier or mixed sections safer if any snow remains.
  • To avoid the busiest lines, consider crossing a nearby col or using the less‑trafficked side for your approach-many visitors concentrate on the obvious trailheads and miss quieter alpine scenery.

Best Time to Visit Mont Ruan #

Visit in midsummer for the safest, most accessible hiking conditions; winter requires alpine experience and equipment.

Summer
July-September · summit daytime often ~0-10°C
Preferred time for hiking and scrambling with reduced snow on high routes and long daylight hours.
Late spring / early summer
May-June · variable; cooler at altitude
Snowmelt creates mixed terrain - good for lower slopes but higher ridges may still be snowy.
Winter
December-March · well below freezing at altitude
Snow-covered alpine conditions for ski touring and mountaineering; plan for winter hazards and limited access.

Weather & Climate near Mont Ruan #

Climate

Mont Ruan's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -11°C to 10°C. Abundant rainfall (1687 mm/year), wettest in November, distributed fairly evenly throughout the year.

Temperature & Rainfall
Temperature Range
10°
Warmest Month
-11°
Coldest Month
Monthly Conditions

January

January is freezing with highs of -5°C and lows of -10°C. Significant rainfall (162 mm) and breezy conditions.

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-10° -5°

Weather

162 mm
Rainfall
7.0 m/s
Wind
Breezy

February

February is the coldest month with highs of -6°C and lows of -11°C. Significant rainfall (155 mm) and breezy conditions.

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-11° -6°

Weather

155 mm
Rainfall
7.0 m/s
Wind
Breezy

March

March is freezing with highs of -5°C and lows of -10°C. Significant rainfall (154 mm) and breezy conditions.

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-10° -5°

Weather

154 mm
Rainfall
6.8 m/s
Wind
Breezy

April

April is freezing with highs of -4°C and lows of -8°C. Significant rainfall (143 mm) and breezy conditions.

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-9° -4°

Weather

143 mm
Rainfall
6.1 m/s
Wind
Breezy

May

May is freezing with highs of 1°C and lows of -4°C. Significant rainfall (135 mm).

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-4°

Weather

135 mm
Rainfall
5.7 m/s
Wind
Light Breeze

June

June is cold with highs of 5°C and lows of 0°C. Significant rainfall (120 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

120 mm
Rainfall
5.5 m/s
Wind
Light Breeze

July

July is cold with highs of 9°C and lows of 3°C. Significant rainfall (109 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

109 mm
Rainfall
5.5 m/s
Wind
Light Breeze

August

August is cold with highs of 10°C and lows of 4°C. Significant rainfall (114 mm).

Comfort

Feels Like Cold
C
Temperature
10°

Weather

114 mm
Rainfall
5.2 m/s
Wind
Light Breeze

September

September is cold with highs of 7°C and lows of 2°C. Significant rainfall (110 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

110 mm
Rainfall
5.7 m/s
Wind
Light Breeze

October

October is cold with highs of 3°C and lows of -2°C. Significant rainfall (142 mm) and breezy conditions.

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

142 mm
Rainfall
6.1 m/s
Wind
Breezy

November

November is freezing with highs of -1°C and lows of -6°C. The wettest month with heavy rain (175 mm) and breezy conditions.

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-6° -1°

Weather

175 mm
Rainfall
7.2 m/s
Wind
Breezy

December

December is freezing with highs of -4°C and lows of -9°C. Significant rainfall (168 mm) and breezy conditions.

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-9° -4°

Weather

168 mm
Rainfall
7.2 m/s
Wind
Breezy

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