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Grand Som

50🟢 Flyable today

France · Takeoff 1578 m

Forecast next days

2026-08-1870

Día volable, condiciones decentes, base de cúmulos ~867 m, viento 13 km/h.

Wind max: 13 km/h
Base: 867 m
CAPE: 10
LI: 2.9
2026-08-1980

Día muy favorable para XC, base de cúmulos ~1451 m, viento 16 km/h.

Wind max: 16 km/h
Base: 1451 m
CAPE: 310
LI: -0.6
2026-08-200

No recomendable para volar, base de cúmulos ~164 m, viento 11 km/h, con precipitación 29.6 mm.

Wind max: 11 km/h
Base: 164 m
CAPE: 790
LI: -5.3
2026-08-210

No recomendable para volar, base de cúmulos ~196 m, viento 10 km/h, con precipitación 18.9 mm.

Wind max: 10 km/h
Base: 196 m
CAPE: 50
LI: -2.6

Map and thermal hotspots

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Takeoff description

alti:1989m From the landing go to 'Saint Pierre de Chartreuse' village and cross it. Take the D102b road to the north ('Saint Pierre d'Entremont' direction) and stop on the 'Cucheron' pass. Walk and follow the sign 'Grand Son' summit during 3h. grass slope just before the summit.

About this site

Grand Som is a paragliding launch site in France, near Saint-Laurent-du-Pont. Takeoff elevation is 1578 meters above sea level. It has a good thermal and XC score of 50/100. Best wind directions for takeoff: NE. Check the daily forecast above for current flyability conditions including CAPE, lifted index, cloud base height, and wind speed.