San Diego County's ocean temperatures head for upper 70s — hot even for summer

Sea surface temperatures hit 75 degrees Saturday at several spots along the San Diego County coastline and could reach the upper 70s early next week during an expected four-day heat wave.

It’s common for ocean temperatures to hit the low-to-mid 70s in July. But the surfing community has been buzzing about the warmth of surface temperatures over the past couple of weeks.

Things got even buzzier early Saturday when Del Mar lifeguards announced that the water temperature could hit 77 by the end of day. That would be unusually warm, especially in the absence of an El Nino.

NOAA reported Saturday that the surface of San Diego Bay reached 80 degrees.

Oceanside and the Scripps Pier reported a high of 75.

Forecasters say a swell out of the south-southwest will begin rolling ashore on Sunday, bringing a pulse of warm water. The surf is expected to reach 4 to 6 feet in North County on Monday and about a foot higher on Tuesday.

The swell will coincide with a heat wave that starts on Monday. The National Weather Service says daytime highs will reach the 80s in San Diego and the mid-90s to low 100s in some of the region’s inland valleys and foothills. An excessive heat warning will be in place from Monday through Thursday.

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