🇮🇹 Italy trek conditions · CoastMetric
Alta Via 2 — Aosta Valley conditions today
Gran Paradiso · Courmayeur to Donnas · Valle d'Aosta
Updated 15 Oct 2026, 15:15 UTC
Fair
Next crossing · Col Loson tomorrow, 08:00–16:00
⚠️ Fair — manageable with care
- Disruption reported: Chiusa la strada per Cogne: percorso alternativo per traffico leggero
- Reported: Lavori su cunicolo Ru Neuf, chiusa la strada regionale per Cogne
- Improving: best day Sat 17 Oct (98)
7-day outlook
Best day to go
Today55
Tmrw55
Sat98
Sun40
Mon40
Tue58
Wed40
Best: Sat 17 Oct (98) — 3 mm forecast in 6 h near Champorcher (23% of the Italian landslide rainfall threshold)
Now
What's limiting the score
Alerts
Hazards & advisories
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
21°
low 10°
low 10°
Rifugio Elisabetta 2,195 m
11°
low 5°
low 5°
Col des Chavannes 2,603 m
8°
low 2°
low 2°
La Thuile 1,450 m
18°
low 8°
low 8°
Rifugio Deffeyes 2,494 m
14°
low 1°
low 1°
Planaval 1,554 m
22°
low 6°
low 6°
Rifugio Chalet de l'Épée 2,370 m
14°
low 4°
low 4°
Col Fenêtre 2,840 m
12°
low 2°
low 2°
Rhêmes-Notre-Dame 1,725 m
18°
low 8°
low 8°
Col de l'Entrelor 3,002 m
10°
low 1°
low 1°
Eaux-Rousses 1,666 m
20°
low 9°
low 9°
Col Loson 3,299 m
11°
low 1°
low 1°
Rifugio Vittorio Sella 2,584 m
15°
low 5°
low 5°
Cogne 1,545 m
21°
low 13°
low 13°
Rifugio Sogno di Berdzé 2,530 m
14°
low 7°
low 7°
Fenêtre de Champorcher 2,827 m
12°
low 6°
low 6°
Rifugio Dondena 2,192 m
13°
low 6°
low 6°
Champorcher 1,427 m
18°
low 11°
low 11°
Donnas 322 m
22°
low 13°
low 13°
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 55/100 (Fair).
- 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.
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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