San Diego Faces Extreme Heat Warning Amidst Coastal Flood Advisory

San Diego, CA, July 30, 2026 —

San Diego is currently under an extreme heat warning set to persist through Sunday, with forecasters predicting dangerously high temperatures across the region.

Coastal areas are expected to see temperatures reach the mid-90s. Inland western valleys and foothills will experience even hotter conditions, with temperatures ranging from the mid-90s to 105 degrees Fahrenheit. Desert communities are forecast to exceed 115 degrees Fahrenheit.

Compounding the heat threat, a coastal flood advisory is in effect for San Diego County. This advisory is attributed to high swells generated by Hurricane Genevieve. The combination of these weather events raises concerns for both public safety and infrastructure.

Residents are advised of an increased risk of coastal flooding, particularly in low-lying areas. Additionally, swimming conditions are expected to be dangerous due to the high surf. Authorities are urging caution for anyone planning to visit the coast or engage in water activities.

The National Weather Service has issued the heat warning as a measure to alert the public to the potential health risks associated with prolonged exposure to extreme heat, including heat exhaustion and heatstroke.

Story summarized from the original created by Brooke Binkowski • Times of San Diego on timesofsandiego.com, see more information here.

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