Chablais Alps

Mountains Mountain range in the Alps straddling France and Switzerland

The Chablais Alps straddle Lake Geneva and Haute-Savoie, offering hiking, alpine pastures and ski areas; visitors come for marked trails, lifts and views toward Mont Blanc.

Main image

The Chablais Alps are a subrange of the northwestern Alps that straddle the border between France and Switzerland, forming part of the larger Alpine chain north of Lake Geneva. The range comprises a mix of rugged peaks, glacial cirques and inhabited valleys.

The area supports both summer and winter mountain activities - hiking, climbing and ski tourism - with several well-developed resorts and lift systems on the French side. Landscape and land use vary from high alpine terrain to cultivated valley floors.

Geographically the Chablais sit between Lake Geneva to the northwest and the Mont Blanc massif to the south and are administered across departments and cantons in the French Haute-Savoie and adjacent Swiss cantons.

  • Cross-border range: The range straddles the border between France and Switzerland and includes a mix of alpine peaks, deep valleys and developed mountain resorts used year-round for skiing, hiking and climbing.

What to See #

  • Portes du Soleil area: Portions of the Portes du Soleil ski domain lie on the southern slopes, linking French and Swiss resorts across the Chablais massif and providing an extensive interlinked ski network.
Chablais Alps
46.2500, 6.5000

How to Get to Chablais Alps #

The Chablais Alps are accessible from towns like Thonon-les-Bains and Evian on the French side and from Aigle or Monthey in Switzerland. Regional TER trains and Swiss S-Bahn services connect to valley towns; from there use local buses or mountain lifts.

Tips for Visiting Chablais Alps #

  • If hiking, bring a detailed trail map - alpine trails can be stone-strewn and signage varies between communes.
  • Stay in a mountain refuge (refugio) to experience classic Alpine hospitality and early-start access to summits at dawn.
  • Check local avalanche and summer rockfall warnings before attempting technical routes.

Best Time to Visit Chablais Alps #

Best in summer for hiking and climbing; winter attracts backcountry skiers and mountaineers but demands technical preparedness.

Summer
June-September · 5-20°C (41-68°F)
Best for hiking, climbing and alpine flora; most refuges and trails are open.
Winter
December-March · -10-5°C (14-41°F)
Snow sports and ski touring but requires avalanche-aware travel and local guides.

Weather & Climate near Chablais Alps #

Climate

Chablais Alps's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -5°C to 20°C. Abundant rainfall (1413 mm/year), wettest in December, distributed fairly evenly throughout the year.

Temperature & Rainfall
Temperature Range
20°
Warmest Month
-5°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 2°C and lows of -5°C. Significant rainfall (128 mm).

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-5°

Weather

128 mm
Rainfall
2.8 m/s
Wind
Calm

February

February is freezing with highs of 2°C and lows of -5°C. Significant rainfall (132 mm).

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-5°

Weather

132 mm
Rainfall
2.9 m/s
Wind
Calm

March

March is cold with highs of 5°C and lows of -3°C. Significant rainfall (105 mm).

Comfort

Feels Like Cold
C
Temperature
-3°

Weather

105 mm
Rainfall
3.1 m/s
Wind
Light Breeze

April

April is cold with highs of 8°C and lows of 0°C. Regular rainfall (98 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

98 mm
Rainfall
3.0 m/s
Wind
Light Breeze

May

May is cold with highs of 14°C and lows of 4°C. Significant rainfall (107 mm).

Comfort

Feels Like Cold
C
Temperature
14°

Weather

107 mm
Rainfall
2.9 m/s
Wind
Calm

June

June is cool with highs of 17°C and lows of 7°C. Significant rainfall (124 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
17°

Weather

124 mm
Rainfall
2.8 m/s
Wind
Calm

July

July is cool with highs of 20°C and lows of 10°C. Significant rainfall (104 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 20°

Weather

104 mm
Rainfall
2.7 m/s
Wind
Calm

August

August is cool with highs of 20°C and lows of 10°C. Significant rainfall (104 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 20°

Weather

104 mm
Rainfall
2.5 m/s
Wind
Calm

September

September is cool with highs of 16°C and lows of 7°C. Significant rainfall (108 mm).

Comfort

12°
Feels Like Cool
12°C
Temperature
16°

Weather

108 mm
Rainfall
2.5 m/s
Wind
Calm

October

October is cold with highs of 11°C and lows of 3°C. Significant rainfall (121 mm).

Comfort

Feels Like Cold
C
Temperature
11°

Weather

121 mm
Rainfall
2.7 m/s
Wind
Calm

November

November is cold with highs of 5°C and lows of -1°C. Significant rainfall (138 mm).

Comfort

Feels Like Cold
C
Temperature
-1°

Weather

138 mm
Rainfall
2.9 m/s
Wind
Calm

December

December is freezing with highs of 2°C and lows of -4°C. The wettest month with heavy rain (144 mm).

Comfort

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

Weather

144 mm
Rainfall
2.9 m/s
Wind
Calm

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