The most popular time to hike the Tour du Mont Blanc is July and August.

During this 2 month period, hikers are most likely to have the best trail conditions, weather and accommodation options. Typically, the days are long, there is little chance of rain, no/low snow on the trails, warm temperatures, alpine flowers in full bloom and lush meadows. The Alps are a paradise during these months.

Nevertheless, the Alps are no different than any other high mountain range in the world. The weather can turn at any point. There is the possibility of thunderstorms developing later in the day and don’t be surprised if you wake up to fresh snow in the higher altitudes. Although some hikers decide to hike in June and September, there are weather and accommodation limitations to consider.

Read more about each of the different hiking seasons for the Tour du Mont Blanc to help make your decision on when to hike.

HIKING EARLY SEASON - JUNE

June is an unpredictable time to hike as trail conditions are at the mercy of the winter/spring conditions. Some years (for example 2024), there was still a significant amount of snow on the trail - especially in high elevation areas - throughout June. Whereas other years (for example 2022), there was a low winter snowfall and warm spring which meant the high mountain passes were mostly clear of snow by end of June.

It is recommended that you plan to follow the main TMB trail during June as it stays at lower elevations and gives you the best chance of safely completing the entire journey.

Most of the accommodation on the Tour du Mont Blanc opens from the middle of June, however, some transport options along the trail won’t commence until the start of July so keep this in mind if you’re planning to use gondolas, etc too.

Those who choose to hike at this time may enjoy the full bouquet of alpine flowers (at lower elevations) and are likely to see farmers begin bringing their cows to higher alpine regions for summer grazing. The change of season is visible all around.

HIKING PEAK SEASON - JULY AND AUGUST

Hiking during peak season, you are most likely to have the best trail conditions - with no/low snow on the trails, warm temperatures, alpine flowers in full bloom, all summer accommodation open and transport running.

However, it is also the busiest time, both on the trail and within accommodation. Therefore, early booking is required to secure accommodation, particularly if you have fixed dates or prefer private rooms.

Learn about booking tips and tricks for securing your preferred accommodation during the peak season.

HIKING LATE SEASON - SEPTEMBER

This is a beautiful time of year to hike, with the fall colours all around and less people on the trail. However, the temperatures starts to become cooler at night with an increased chance of snow on higher passes and cloudy/rainy weather.

Most mountain huts will close by mid September so you need to confirm opening dates ahead of time or stay in larger villages/towns that are open all year round.

Transport along the trail in ski resorts (gondolas, cable cars) and buses down remote valleys will also reduce their service or stop from about the second week of September so ensure not to have a plan that relies upon them without confirming schedule end dates first.