Flegere
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Chamonix-Mont-Blanc (5 km)
65 XC score / 100 · takeoff at 2345 m · 📍 View on map
Coordinates and external links
45.96850, 6.87650Forecast next days
Updated: 2026-04-20 13:19 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~1505 m, viento 14 km/h.
base ~1505m · wind 14 km/hDía muy favorable para XC, base de cúmulos ~848 m, viento 13 km/h.
base ~848m · wind 13 km/hDía volable, condiciones decentes, base de cúmulos ~1897 m, viento 10 km/h.
base ~1897m · wind 10 km/hDía volable, condiciones decentes, base de cúmulos ~1456 m, viento 8 km/h.
base ~1456m · wind 8 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Wind chart — altitude × time
Color: green < 20 km/h · yellow 20-30 · red >40. Arrows point to where the wind is blowing. Each column = 1 hour. 4 altitudes: 10m surface, 80m first thermal, 1500m (850 hPa) thermal cruise, 3000m (700 hPa) top.
Wind next days (Open-Meteo model)
Wind rose 10m — 2026-04-20
| Date | Morning 08-12h | Midday 12-16h | Evening 16-20h | |||
|---|---|---|---|---|---|---|
| 2026-04-20 | 10 km/h SW | gust 36 | 16 km/h W | gust 38 | 11 km/h W | gust 38 |
| 2026-04-21 | 4 km/h S | gust 25 | 8 km/h W | gust 28 | 8 km/h W | gust 28 |
Colors: green < 15 km/h (optimal) · orange 15-25 · red >25 (flying not recommended). ⚠️ = shear >25 km/h between 10m and 850 hPa (potentially broken thermals).
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 6 | Medium |
| Avg thermal probability | 0.85 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.61 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
east face
Rules and notes
>> July-August: be aware of no-fly-zone on south side of Chamonix (Mont Blanc -Aiguille du Midi)! (> see pix) >> LF R-30A active year round!! (> see pix!)
Pilot comments
good thermals early in the morning. Best spot of Chamonix to start cross country flights
Nearby sites
Plan Praz/ Brevent (Chamonix) (56) · Plan de l'Aiguille (Chamonix) (50) · Tete noire de Pormenaz (48) · Grands Montets (58) · Aiguille du Midi -S / N (61) · Loriaz (55)