No, it's definitely not random. Off shore you get 24 hour constant wind, the synoptic wind. When we race to Hawaii, first you HAVE to get past the Farallones t

No, it's definitely not random. Off shore you get 24 hour constant wind, the synoptic wind. When we race to Hawaii, first you HAVE to get past the Farallones the first day and into the synoptic wind. If the inshore wind shuts down, you're bobbing all night with 0 wind. Get to the synoptic wind, set the spinnaker and it's a downhill sled race to Oahu. At the coast, you get marine layer driven winds in the afternoon, dying off in the evening. Stockton heats up midday, creates a low pressure and sucks in the marine layer. It cools off in the evening, shutting it down. Now, as to the wind chart, that's CA as a whole. Dunno. But wind is definitely not random by geography and season. Basically, it's solar driven.