Bay Area/ San Jose

San Jose Basks In Sun While Sneaker Waves Turn Coastline Treacherous

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Published on June 20, 2026
San Jose Basks In Sun While Sneaker Waves Turn Coastline TreacherousSource: Wizz4prep, CC BY-SA 4.0, via Wikimedia Commons

San Jose is waking up to a cloudy, cool day today, with temperatures hovering around 63°F at the airport, but inland neighborhoods should shake off the gray by late morning and climb to highs near 77°F. The marine layer will keep the coast cool and socked in with clouds, and surf conditions remain hazardous for Pacific-facing beaches.

Coast Is Dangerous: Sneaker Waves and Rip Currents

A Beach Hazards Statement is in effect through next Wednesday afternoon, June 24, warning of sneaker waves and strong rip currents as a long-period southerly swell keeps charging into the shoreline. A Small Craft Advisory also covers northern outer waters beginning tonight, and onshore gusts of 15 to 30 mph are likely in headlands and gaps, according to the National Weather Service.

Local Coverage And What To Expect

Local reporting has already spotted nuisance flooding at bayshore parking lots and low-lying streets during late-night high tides, so if you live near the water, move cars and valuables off the shoreline.

Sunny Inland Weekend But Midweek Heat Returns

Inland San Jose will be the warm spot, with mostly sunny skies and highs near 77°F today, then a warm-up into the mid-80s next Monday and upper-80s by next Wednesday, June 24. Forecasters note a Minor HeatRisk this weekend, with a potential Moderate HeatRisk by midweek for interior areas, according to the National Weather Service.

What To Do

If you head to the coast, give the surf a wide berth, never turn your back to the ocean, and stay off jetties and rocks. Swim only at lifeguarded beaches. Boaters should heed small-craft advisories for the northern outer waters tonight into Monday, secure loose outdoor gear ahead of gusty onshore winds, and bring layers for those cool coastal commutes.