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Alta Via 2 (Aosta) · Courmayeur to Donnas
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Alta Via 2 — Aosta Valley conditions today

Gran Paradiso · Courmayeur to Donnas · Valle d'Aosta

Updated 12 Oct 2026, 05:30 UTC
94 out of 100
Excellent
Next crossing · Col Loson today, 08:00–16:00
✅ Excellent walking conditions
  • 12 cm of new snow at Col de l'Entrelor, trail likely packed by now
  • Calm, settled window on Col Loson (-6°C, gusts 46 km/h)
Open live conditions →
7-day outlook

Best day to go

Today93
Tmrw93
Wed98
Thu98
Fri99
Sat78
Sun40

Best: Fri 16 Oct (99) — No significant new snow on the high route

Now

What's limiting the score

⛰️ High crossing92
Calm, settled window on Col Loson (-6°C, gusts 46 km/h)
❄️ Snow & avalanche85
12 cm of new snow at Col de l'Entrelor, trail likely packed by now
🌧️ Rain & slopes97
Little rain on the steep and gully sections — low slip and rockfall trigger risk
🌦️ Trail weather100
Dry along the whole route
🌄 Views100
Clear dawn views likely from Col de l'Entrelor
🚆 Getting there98
Val Veny road (Courmayeur): low landslide & rockfall risk (7 mm / 96 h near Courmayeur)
Route

Stages & altitudes

Fourteen stages along the south side of the Aosta Valley, from Courmayeur under Mont Blanc through the Gran Paradiso National Park to Donnas. Seven cols, three of them near or above 3,000 m (Col de l'Entrelor, Col Loson at 3,299 m, Fenêtre de Champorcher). Weather risk is snow and ice on the high cols outside high summer, thunderstorms, and wind on the crossings.

Courmayeur 1,224 m
Day 1 · trailhead
5°
low 5°
Rifugio Elisabetta 2,195 m
Day 1 · hut · overnight
-1°
low -1°
Col des Chavannes 2,603 m
Day 2 · pass
-3°
low -3°
La Thuile 1,450 m
Day 2 · village · overnight
3°
low 3°
Rifugio Deffeyes 2,494 m
Day 3 · hut · overnight
-4°
low -4°
Planaval 1,554 m
Day 4 · village · overnight
2°
low 2°
Rifugio Chalet de l'Épée 2,370 m
Day 5 · hut · overnight
-2°
low -2°
Col Fenêtre 2,840 m
Day 6 · pass
-5°
low -5°
Rhêmes-Notre-Dame 1,725 m
Day 6 · village · overnight
2°
low 2°
Col de l'Entrelor 3,002 m
Day 7 · pass
-6°
low -6°
Eaux-Rousses 1,666 m
Day 7 · village · overnight
3°
low 3°
Col Loson 3,299 m
Day 8 · pass
-6°
low -6°
Rifugio Vittorio Sella 2,584 m
Day 8 · high camp · overnight
-2°
low -2°
Cogne 1,545 m
Day 9 · village · overnight
6°
low 6°
Rifugio Sogno di Berdzé 2,530 m
Day 10 · hut · overnight
1°
low 1°
Fenêtre de Champorcher 2,827 m
Day 11 · pass
-1°
low -1°
Rifugio Dondena 2,192 m
Day 11 · hut · overnight
1°
low 1°
Champorcher 1,427 m
Day 12 · village · overnight
6°
low 6°
Donnas 322 m
Day 14 · trailhead
8°
low 8°
Plan

Permits, access & safety

Hut bookings
No permit is needed, but book huts ahead — July and August fill up. Confirm opening dates directly with each hut.
Gran Paradiso National Park
No permit to walk; camping and dogs are restricted inside the park — confirm current rules with the park (pngp.it).
Getting there
Courmayeur has buses from Aosta and through the Mont Blanc Tunnel from Chamonix. Donnas is on the Aosta–Ivrea railway — check Trenitalia for works and replacement buses. Most stage ends (La Thuile, Planaval, Rhêmes, Eaux-Rousses, Cogne, Champorcher) have road access.
112 — European emergency number
Police, ambulance and mountain rescue (Soccorso Alpino) throughout Italy. Give your route, the nearest hut or pass and your phone battery level.
118 — medical emergency
Still answered in every region; calls are routed to the same emergency centre.
Soccorso Alpino Valdostano
The Aosta Valley mountain rescue service, dispatched through 112.
FAQ

Alta Via 2 — Aosta Valley questions

Is the Alta Via 2 — Aosta Valley open right now?
No closure is currently reported in the news and official sources we monitor. The live score is 94/100 (Excellent).
When is the best time to walk the Alta Via 2 — Aosta Valley?
Usually Jul – mid Sep. Huts open from around mid to late June until September (dates vary — confirm with each hut); early summer can leave old snow on the high cols, and afternoon thunderstorms are common in July and August.
How high does the Alta Via 2 — Aosta Valley go?
The highest point is 3,299 m (Col Loson is the key crossing scored on the live page).
Do I need a permit for the Alta Via 2 — Aosta Valley?
Hut bookings: No permit is needed, but book huts ahead — July and August fill up. Confirm opening dates directly with each hut. Gran Paradiso National Park: No permit to walk; camping and dogs are restricted inside the park — confirm current rules with the park (pngp.it).
How is the Alta Via 2 — Aosta Valley score calculated?
Hourly forecasts for every waypoint, corrected to real altitude, feed six factors: wind, storms and cloud on the high crossing; snow on the cols with the official avalanche danger level; rain against the Italian landslide rainfall threshold (Peruccacci et al. 2017); trail weather including heat; views; and the road or rail approach including official transport strikes. Orange and red official warnings and credible reported closures cap the score.
See hour-by-hour conditions →

Weather forecast from MET Norway (CC BY 4.0).
Not an official forecast. Model-derived rain and slope indications; always follow official warnings (Meteoam, Protezione Civile, avalanche services), the huts and 112.
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