Sur Cou
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Amancy (6 km)
46 XC score / 100 · takeoff at 1789 m · 📍 View on map
Coordinates and external links
46.02010, 6.34640Forecast next days
Updated: 2026-05-02 16:33 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Not recommended for flying, cloud base ~204 m, wind 9 km/h, precipitation 6.3 mm.
base ~204m · wind 9 km/h · precip 6.3mmNot recommended for flying, cloud base ~295 m, wind 9 km/h, precipitation 9.4 mm.
base ~295m · wind 9 km/h · precip 9.4mmComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
🗓️ Best season to fly (2024 climatology)
Monthly climate score: historical avg of temp, wind, rain and cloud cover. Green = optimal month.
⭐ Best month: Aug (80/100, 19°C, 119mm lluvia) · Worst month: Jan (5/100, 183mm lluvia)
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 4 | Medium |
| Avg thermal probability | 0.73 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.25 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
About 1h,1h30 to go to the top Start of the hike from the takeoff parking. Juste follow 'Chalets de Balme' direction first, then continue to the top.
Nearby sites
Solaison (45) · brizon (45) · Anglettaz (38) · Col de la Colombiere (60) · Parmelan (41) · le Grand Bornand (56)