Planning a European Alps adventure can be challenging — after all, each season offers something unique! In winter, the Alps become a playground for skiers and snowshoers, but in summer, the world-renowned trekking season begins. So if you’re wondering when you should go on the Tour du Mont Blanc (TMB), you’ll want to find a time slot between mid-June and mid-September.
Why? If you go earlier than June, large amounts of snow remain on the trails and make it dangerous to cross cols. And while the weather is often lovely all the way into October, many lifts and mountains close after the peak season ends.
Here’s a guide that will help you decide which summer month is best for your TMB adventure.
Best time to see alpine flowers on the TMB
Three-quarters of Europe’s vascular plant species grow in the Alps, and around 400 species are endemic to the region. So if you’re interested in botany, you really couldn’t come to a better place!
You can spot alpine flowers from March all the way into October, but spring offers the greatest diversity. From mid-June to mid-July, there is a crossover of the spring plants (which are coming to the end of their flowering cycle) and the summer plants (which are beginning to bloom).
Discover our spring Tour du Mont Blanc trips
Best time for warm weather on the TMB
July and August are the hottest months of the year. In July, the average temperature is between 13 and 26C (55 – 79F). August is slightly cooler with average temperatures of 12-26C (53-79F).
If you prefer hiking in cool weather, then you may find a trip in June or September more comfortable.
Although rainfall average is similar between June and September, mountain weather is incredibly unpredictable. We recommend bringing rain gear at any time of year. See our Alps Trekking Packing List.
Discover our summer Tour du Mont Blanc trips
Best time to beat the crowds on the TMB
Coinciding with European summer holidays, mid-July to mid-August is peak season. If you want to beat the crowds, then hike the TMB between mid-June and mid-July or in September. In peak season, accommodation goes fast, so make sure you plan your trip well ahead (maybe even a year in advance!).
Discover our spring and Autumn Tour du Mont Blanc Trips
- Haute Route Q&A - May 31, 2019
- Saint Luc: Highlights of the Haute Route - May 23, 2019
- Are hiking poles worth the purchase? - May 18, 2019
- How to work out your heart rate zones for hiking - April 30, 2019
- 5 ways heart rate training will improve your hiking - April 23, 2019
- Alpenwild’s Tour du Mont Blanc: Part 3 – Champex Lac to Chamonix - April 16, 2019
- Alpenwild’s Tour du Mont Blanc: Part 2 – Courmayeur to Champex Lac - April 15, 2019
- Alpenwild’s Tour du Mont Blanc Trek: Part 1 – Chamonix to Courmayeur - April 6, 2019
- Top 5 Hiking Destinations in the Alps - March 29, 2019
- Big mountains, small wonders: An interview with Alpine Naturalist, Simone van Velzen - March 24, 2019