The freezing level across the Alps is sitting above 4,000 metres. On glacier routes that means no overnight refreeze, and snow bridges that soften by mid-morning. Start before dawn. Zermatt still holds the most open terrain, but the high ground is shrinking week on week. Lower down, the Tour du Mont Blanc is largely snow-free, with only patchy gullies lingering near the Col du Bonhomme. Carry more water than the map suggests.
Hydration packs ↗