Snow-covered trail
FrequentSnow-covered trail
25-50% chance
Auvergne-Rhône-Alpes, Valais/Wallis·France, Switzerland
Tour du Mont Blanc
Duration
8-12 days
Distance
163.5 km
Elevation gain
9442 m
Max altitude
2528 m
Le Tour du Mont-Blanc (TMB) est l’un des plus beaux treks des Alpes et l’un des itinéraires de randonnée les plus célèbres d’Europe. Ce circuit de grande randonnée d’environ 170 km traverse la France, l’Italie et la Suisse en offrant des panoramas spectaculaires sur le massif du Mont-Blanc, ses glaciers, ses lacs de montagne et ses cols d’altitude. Le parcours alterne entre sentiers alpins, vallées préservées, refuges de montagne et villages typiques, avec plusieurs variantes adaptées à différents niveaux.
SummitsCliffsRidgesLakesForestsCavesValleys
When to go
Best period : July - AugustPossible with care : June · SeptemberNot recommended : October - May
IdealPossibleAvoid
Click a month to view details
June - possible, with care
PossibleThis month can work, but conditions are usually more variable than during the best period. The indicators below may be localized on the most exposed sections; check recent conditions before setting out.
Each percentage is the probability of encountering the event at least once during the month, not its intensity or the share of the trail affected. Probabilities are calculated from weather and satellite data* from the last 10 years.
Cool nights
Cool nights
Minimums around ~ 3°C on high points
Cool nights
Significant rain
OccasionalSignificant rain
10-20% chance
Storm-prone conditions
OccasionalStorm-prone conditions
10-20% chance
Dry conditions
RareDry conditions
5-10% chance
Snow detail within the month
Early
Frequent25-50% chance that the trail is snow-covered
Mid
Rare5-10% chance that the trail is snow-covered
Late
Rare5-10% chance that the trail is snow-covered
Sources: Open-Meteo and MODIS satellite data.
How to get there
Public transport
Fully accessibleTrek circulaire accessible depuis la gare de Chamonix-Mont-Blanc (train Mont-Blanc Express depuis Saint-Gervais/Martigny). Bus depuis Genève (SAVDA, FlixBus). Navettes saisonnières locales (Les Contamines, Les Chapieux). Réseau TC dense en été.
More informationBy car
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