Winds out of the west-northwest have pushed warm surface water away from the coast, allowing unseasonably chilly water to rise to the surface at many San Diego County beaches, the National Weather Service said Saturday.
Sea surface temperatures are typically in the 71 to 73 degree range in mid-July. But the temperature fell to 62 Saturday in Solana Beach, 67 at Mission Beach and 69 at Imperial Beach. The nearshore water at Huntington Beach in Orange County was 65.
The wind-driven chill, which is known as upwelling, is most common in the spring. But it periodically happens in the summer, rarely lasting very long.
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