LAKE LÉMAN · 24H SURF FORECAST

Léman Surf Watch

Wind-driven wave potential, ranked by shoreline orientation and fetch.

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Finding the best window

Checking candidate shoreline points around the lake.

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Lake overview

Next 24 hours
SWITZERLANDFRANCELAC LÉMAN
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Top windows

Ranked

Spot forecast

Tap a spot to inspect

Photo observation

AI calibration

Upload a current photo of the water. The AI compares visible conditions with the model and returns a calibration suggestion.

AI analysis becomes active after you add an OpenAI API key during deployment.

Condition alerts

Email

Receive an email when a spot crosses your chosen surf score during the next 24 hours.

The deployed version checks conditions hourly.

How the score works

The MVP combines forecast wind speed, gusts, wind direction, directional alignment with each shore, estimated open-water fetch and recent wind persistence. It is a decision aid, not a safety forecast or measured wave buoy.