When the Santa Ana winds kick up in Southern California it usually means any number of things. The start of a very dangerous fire season, or sometimes just good air quality for the surrounding big cities that boarder San Diego that fail to see their mountains on regular basis. If your passion is scuba diving it could be the best day of the year to get in the water. The later part of summer can bring warm water temperatures and excellent visibility for beach diving in Southern California. Wyatt... Sign in to see full entry.