Developed by John Alden Knight in 1926: fish activity is influenced by the Sun and Moon positions.

Major periods — Moon overhead or underfoot (~2h windows, most productive).

Minor periods — Moonrise and moonset (~1h windows).

Blue — Excellent: major solunar + full/new moon. Very active fish.

Green — Good: solid activity. Plan around shown peak times.

Yellow — Fair: moderate. Focus on peak windows only.

Red — Poor: low activity. Try different techniques.

All calculations are for your detected location.

Times shown in your local timezone using latitude/longitude for precise sunrise, sunset, moonrise, moonset, and solunar periods.

Allow browser location permission for best accuracy.