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Best Time to Hike Tour du Mont Blanc - Itinéraire principal

wb_sunny Best from August to August
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Month-by-month temperatures and rainfall for Tour du Mont Blanc - Itinéraire principal, France, based on 2-year climate normals.

Month-by-month weather on Tour du Mont Blanc - Itinéraire principal

Month Avg high Avg low Rainfall Rainy days
January -7.4°C / 19°F -13.1°C / 8°F 226 mm 18
February -5.8°C / 22°F -11.6°C / 11°F 98 mm 11
March -5.8°C / 22°F -11.3°C / 12°F 124 mm 18
April -2.6°C / 27°F -8°C / 18°F 152 mm 13
May -0.1°C / 32°F -5.3°C / 22°F 115 mm 13
June 5.8°C / 42°F -1.3°C / 30°F 94 mm 13
July 7.3°C / 45°F 0.1°C / 32°F 67 mm 12
August 9.1°C / 48°F 1.3°C / 34°F 40 mm 8
September 2.5°C / 37°F -3.6°C / 26°F 166 mm 15
October 0.4°C / 33°F -5.5°C / 22°F 196 mm 15
November -4.4°C / 24°F -10.7°C / 13°F 154 mm 9
December -7.4°C / 19°F -12.5°C / 10°F 122 mm 10

Highlighted rows are the recommended hiking window. Climate normals via Open-Meteo (2-year average). Mountain weather varies — always check a live forecast before you set off.

When to go

The best months to hike Tour du Mont Blanc - Itinéraire principal are August. Expect daytime highs around 9°C (48°F) and nights near 1°C (34°F).

Pack warm layers and a proper insulating jacket — nights get cold even in the best window.

Tour du Mont Blanc - Itinéraire principal

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