Phases of the Moon can effect fish migrations. Steelhead, Salmon and Trout tend to be more active during a Full Moon on their migrations to the gravel. You can view the phase of the Moon for any date and time. Use the form below and hit the Show Phase button. This form is processed on the US Naval Observatory server, so it can take a few moments to process your request.

More information of Sun and Moon phenomena.
The Time Service Home Page U.S. Naval Observatory, Washington, DC