Sulegg-2320
📍 Bern , Interlaken-Oberhasli District · Nearest city: Wilderswil (5 km)
55 XC score / 100 · takeoff at 2320 m · 📍 View on map
Coordinates and external links
46.62150, 7.85382Forecast next days
Updated: 2026-04-21 01:25 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~443 m, wind 17 km/h.
base ~443m · wind 17 km/hVery favorable day for XC, cloud base ~1447 m, wind 13 km/h.
base ~1447m · wind 13 km/hFlyable day, decent conditions, cloud base ~2127 m, wind 10 km/h.
base ~2127m · wind 10 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-21❌ Not recommended · peak 63 at 16h
- Cloud cover >85% — no radiation to trigger thermals
- High cloud suck (100/100) — base below freezing with CU
| 08 50 ☁️⚠️ | 09 50 ☁️⚠️ | 10 50 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 55 ☁️⚠️ | 14 45 ☁️⚠️ | 15 53 ☁️⚠️ | 16 63 ☁️⚠️ | 17 45 ☁️⚠️ | 18 45 ☁️⚠️ | 19 45 ☁️⚠️ | 20 40 ☁️⚠️ |
Peak 16h: CAPE 30 J/kg · LI -0.2 · BL top 1060 m · w* 0.0 m/s · cloud base 2982 m · 0°C at 2120 m · Pro score 54/100 · sun 24° over slope
Hourly flyability (0–100). ⛈️ = storm risk · ☁️⚠️ = cloud suck · 🏔️ = active ridge lift. CAPE = convective energy, LI = stability, BL top = thermal ceiling, w* = estimated dry thermal velocity. Source: Open-Meteo (ECMWF/GFS/ICON blend model).
Estimated vertical profile (Sounding)
Reference time: 16:00 (peak of the day)
Surface T: 1.8°C · Td: -3.5°C
LCL (cloud base): 662 m
BL top: 1060 m
0°C level: 2120 m
Approximate profile from surface variables + synoptic levels. Red lines = temperature, dashed blue = dew point. Orange bands = detected inversions.
🌬 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
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 8 | High |
| Avg thermal probability | 0.80 | 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 |
Pilot comments
More info on http://www.flyland.ch. Airspaces in Switzerland are a thought subject, get all the info you can get befire flying.
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