GR5 — Lake Geneva to Chamonix conditions today
Chablais · Col d'Anterne · Brévent · Haute-Savoie
- Settled on Col du Brévent (-3°C, gusts 18 km/h)
- No significant new snow on the high route
Best day to go
Best: Tue 13 Oct (100) — No significant new snow on the high route
What's limiting the score
Huts, cols & altitudes
The first week of the Grande Traversée des Alpes: from Saint-Gingolph on Lake Geneva through the Chablais pastures (Chalets de Bise, Trébentaz, Chésery on the Swiss border), the Golèse and the Giffre valley at Salvagny, over the Col d'Anterne to Moëde-Anterne, and across the Col du Brévent facing Mont Blanc down to Les Houches. Weather risk is thunderstorms on the open cols, snow lingering on the Anterne side early in summer, and rockfall on the Brévent descent.
low 11°
low 0°
low -3°
low -3°
low 1°
low 7°
low -2°
low 0°
low -3°
low 5°
Bookings, access & safety
GR5 — Lake Geneva to Chamonix questions
- Is the GR5 — Lake Geneva to Chamonix open right now?
- No closure is currently reported in the news and official sources we monitor. The live score is 98/100 (Excellent).
- When is the best time to walk the GR5 — Lake Geneva to Chamonix?
- Best season: late June – mid-September. Check hut opening dates, and expect afternoon thunderstorms in summer and snow on the high cols outside it.
- How high does the GR5 — Lake Geneva to Chamonix go?
- The highest point we track is Col du Brévent (2,368 m). No overnight stop is above 3,000 m; the challenge is the daily climbing and weather on the cols.
- Do I need a permit or bookings for the GR5 — Lake Geneva to Chamonix?
- Hut bookings — Book refuges ahead in July–August; confirm opening dates with each refuge. Rules change — confirm with the refuges and park authorities.
- Where does the avalanche level come from?
- From the official Météo-France avalanche bulletin (BRA) for the massif — or the Swiss SLF bulletin on Swiss stages — whenever one is in force (early November to early June). Otherwise the level shown is a model estimate and is labelled as such.
- How is the GR5 — Lake Geneva to Chamonix score calculated?
- Hourly forecasts for every waypoint, corrected to its real altitude (MET Norway Locationforecast), feed six factors: weather on the cols (wind, cold, cloud, thunderstorms), snow and avalanche danger, rain against published European landslide thresholds, trail weather, views and access. Météo-France orange/red warnings, flood vigilance and credible closure reports cap the score.
Weather forecast from MET Norway (CC BY 4.0). Not an official forecast. Always follow Météo-France warnings and avalanche bulletins, préfecture and park notices and refuge guardians. Emergency: 112.
Other routes: GR10 — Central Pyrenees · GR20 — Corsica · GR5 — Larche to Nice · GR5 — Les Houches to Modane · GR5 — Modane to Larche · GR54 — Tour de l'Oisans et des Écrins · GR58 — Tour du Queyras · GR70 — Chemin de Stevenson · GR91 — Traversée des Hauts-Plateaux du Vercors · Tour des Aiguilles Rouges · Tour des Glaciers de la Vanoise · Tour du Beaufortain · Tour du Mont Blanc · Tour du Mont Thabor · All France routes