Acceptable conditions

Schilthorn S — 2923m

Imported · Orientation S, SW · 202°
60%
Local flying
Best window: 7h — 15h
Local flying reaches 60% because launch wind and basic weather stay usable, but the day does not generate enough lift to feel easy or rewarding for long.
Local window 7h — 15hXC window No clear XC window
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Launch wind
4 km/h
SW · 209°
Gust spread
25 km/h
rough launch feel
Lift quality
0.1 m/s
0/5 climb support
Cloud base
1386 m
10.7 km
Precipitation risk
Dry
no signal
Acceptable conditions

Schilthorn S — 2923m

Imported · Orientation S, SW · 202°

Save this forecast to your account for quick access later.

Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
GO
8h
☁️
GO
9h
🌤
GO
10h
🌤
GO
11h
🌤
GO
12h
☁️
GO
13h
☁️
GO
14h
☁️
GO
15h
☁️
GO
16h
☁️
MARGINAL
17h
☁️
MARGINAL
18h
☁️
MARGINAL
19h
☁️
MARGINAL
20h
☁️
MARGINAL
Best window: 7h — 15h
AI analysis
No analysis available for this day.

📊 Wind & thermals aloft

🎓 Full view
💡
Overview: colored arrows show wind speed and direction. Yellow to orange cells highlight the active thermal layer. The LAUNCH line marks the takeoff altitude.
Alt.6h7h8h9h10h11h12h13h14h15h16h17h18h
Top
BLH
——
2948m
3033m
3148m
3263m
3443m
3543m
3583m
3543m
3443m
3308m
3163m
Base
clouds
——
3761m
3910m
4136m
4311m
4398m
4411m
4373m
4298m
4236m
4098m
3873m
3600m
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9
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3400m
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3200m
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7
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3000mLAUNCH
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7
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7
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2800m
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7
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7
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7
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7
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9
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10
2600m
2400m
2200m
2000m
1800m
1600m
1400m
1200m
1000m
800m
600m
400m
200m
0m
0–56–1011–1516–2021–25>25km/hBLH topCloud baseThermals

💨 Wind at launch

🎓 Safety thresholds
💡
Mean wind is the constant speed. Gusts are sudden accelerations. Thresholds: 15 km/h = caution, 25 km/h = critical.

🌡 Temperature

🎓 Why it matters?
💡
Launch temperature affects your comfort and safety. Below 0°C, your fingers go numb and handling controls becomes difficult.

💧 Precipitation

🎓 Impact on the wing
⚠️
Golden rule: never fly in rain or snow. Water weighs down the wing (up to +5 kg), alters its aerodynamic profile and reduces lift. Snow can freeze on suspension lines.
Snow Rain/Showers

Sources: Open-Meteo (AROME 1.3km, ICON-D2 2km) · 2026-05-04 · Data fetched on 28 Apr at 21:58
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.