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NewsTimes of San DiegoSeptember 6, 2026San Diego

National Weather Service issues coastal flood and high surf advisories for San Diego County

The National Weather Service has issued coastal flood and high surf advisories for San Diego County beaches through Tuesday night due to a large south swell from Hurricane Marie and high astronomical tides. Residents should expect dangerous rip currents, tidal overflow in low-lying areas, and a significant warming trend following Labor Day.

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Why It Matters

Residents and beachgoers face increased risks of coastal flooding and dangerous surf conditions through Tuesday, followed by a period of rising temperatures across the county.

Key Facts

  • A coastal flood advisory and high surf advisory are in effect for San Diego County coastal areas until 11 p.m. Tuesday.
  • High astronomical tides are expected to reach between 6.2 and 6.8 feet.
  • Tidal overflow and coastal flooding are expected during evening high tides, particularly for south and southwest-facing beaches and low-lying areas.
  • High temperatures on Labor Day are forecast to be 5 to 10 degrees warmer than Sunday.
  • Temperatures will continue to increase through Wednesday for areas west of the mountains and through Thursday for desert areas.
  • The south swell from Hurricane Marie is expected to peak Sunday and Labor Day before diminishing on Tuesday.
  • Dangerous conditions include high surf, strong rip currents, and longshore currents.

Who's Mentioned

organizationNational Weather Service“The federal agency providing weather forecasts and issuing advisories.”otherHurricane Marie“The weather system causing the south swell.”locationSan Diego County“The geographic area affected by the weather advisories and temperature changes.”