San Diego/ Weather & Environment

San Diego Sizzles as Coastal Flooding Threat Swamps Beaches Friday

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Published on November 05, 2026
San Diego Sizzles as Coastal Flooding Threat Swamps Beaches FridaySource: Google Street View

San Diego is waking up mostly clear Thursday with temperatures near 60 degrees, but the real weather story is the warmup ahead. The city is forecast to reach 77 degrees Thursday, then climb into the 80s through the weekend, with highs possibly pushing 90 degrees Sunday. Along the coast, however, rising tides, elevated surf and dangerous rip currents will make beach plans more complicated.

Friday should reach about 81 degrees, followed by 86 Saturday and a high that could push 90 Sunday under sunny skies. That is a stronger weekend warmup than outlined in Hoodline's earlier forecast, with the latest outlook also highlighting a new coastal flood advisory and higher Sunday temperatures.

Coastal Flood Advisory Starts Friday Morning

A Coastal Flood Advisory begins at 4 a.m. Friday and runs through noon Tuesday for San Diego County coastal areas. The National Weather Service San Diego expects minor to locally moderate flooding, dangerous rip currents and elevated surf along west-facing beaches.

Flooding could affect beach lots, parks and low-lying roads, with isolated road closures possible. The highest tides are expected late Sunday and Monday, reaching roughly 7.4 to 7.6 feet, or up to 1.6 feet above astronomical tide predictions.

Santa Ana Winds Build Inland

Winds should remain weak in most areas, but wind-prone passes, canyons, foothills and coastal slopes could see stronger gusts. Forecast winds may reach 25 to 40 mph Friday and Saturday, with San Diego County mountain areas most favored for stronger easterly winds Saturday.

The offshore flow will also help drive the weekend heat, especially west of the mountains. Sunday looks like the warmest day, with sunny skies and a high that could push 90 degrees before temperatures ease back to about 83 Monday and 80 Tuesday.

Beachgoers Should Watch The Waterline

Surf is expected to run around 3 to 5 feet Thursday and again Monday into Tuesday, adding to the flooding concern during high tides. Anyone heading to the coast should keep away from flooded areas, avoid barricades and never drive through water of unknown depth.

The outlook stays mostly sunny through Tuesday, with overnight lows in the low to mid-60s. For inland residents, the practical forecast is warm afternoons and a few gusty pockets; for coastal visitors, the tide and surf may matter more than the sunshine.