Grunion Runs Under a Crescent Moon
Grunion Runs are predicted to occur during the late evening hours (generally after 10pm and before 1am), following the nocturnal high tide, May 14 through 16. The small, silvery grunion tend to spawn on wide, gently sloping beaches such as Silver Strand, Mission Beach, Pacific Beach, La Jolla Shores, and Del Mar. During the months of April and May, grunion are protected and may not be taken by fishers through any means. Open season for grunion starts in June, and from then until the end of summer, the fish can be collected in reasonable numbers using the hands only (fishing licence needed for persons 16 years of age and older). For more information, visit
The Waxing Crescent Moon returns to the western sky at dusk on Friday, May 14. Look just above the west horizon to spot the exquisitely thin crescent, which closely resembles a ghostly upturned smile. By Saturday at dusk (May 15) the somewhat thicker crescent moon will lie higher and close to the brilliant planet Venus. Both will sink toward the west horizon over the next two hours.
The Planet Venus, appearing like a steadily glowing white lantern, absolutely dominates the western sky during and after the evening twilight period throughout May and June. Venus is in the middle of a nine-month tenure as an "evening star," a perfect ornament lingering over the twilight glow of sunset.
More like this:
- July Heat and a Crescent Moon — July 13, 2010
- The Earliest Sunrise of 2010 — June 14, 2010
- Later Sunsets, Ground-Hog Day, Big Ocean Swells, Waxing Crescent Moon and Venus — Jan. 28, 2009
- Low Tides, Grunion, Crescent Moon, Dawn Sky — July 30, 2008
- A Crescent Moon and Jupiter Watch Over Grunion Runs — July 3, 2008