Mont Blanc Guides Blog

Last Week of June and From Heatwave to Autumn in 72 Hours…

Since my last post reporting the success of our first three courses, conditions have changed and then changed again. Unfortunately my concerns about the excessive heat proved well founded and we experienced record temperatures for the time of year, hotter even than during the big heatwave of 2015.

For the first time ever in June,  between the 18th and the 24th we stopped attempting Mont Blanc because of the heat induced rockfall in the grand couloir, and the mayor of St Gervais even issued his dreaded “Mont Blanc strongly not recommended” warning. Happily for us the heatwave ended on the 25th and things have gone very much the other way, with daytime temperatures in Chamonix (1000m) dropping dramatically from 35°C to 12°C in 72 hours!

Lots of other mountaineering adventures in the interim on the Aiguille du Midi and Monte Rosa,  and back on Mont Blanc fully as of now.

No post of mine would be complete without pictures of the grand couloir so here they are:


Mont Blanc Grand Couloir 29th June 2017
Mont Blanc Grand Couloir 29th June 2017


Mont Blanc Grand Couloir 18th June 2017
Mont Blanc Grand Couloir 18th June 2017


Conditions can easily all change and change again in the course of a week, so you really won’t know what you’re going to get until you get here…

John Taylor
John has been climbing in the Mont Blanc region for over 25 years and became an IFMGA Mountain Guide in 2002. He has been the owner / Head Guide at Mont Blanc Guides Ltd. since 2004.