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Extreme Heat Warning Issued for Coastal San Diego and Orange Counties
An Extreme Heat Warning has been issued for the coastal areas of San Diego and Orange counties, remaining in effect through 8:00 PM PDT on September 10.
The National Weather Service in San Diego, California, issued the high-severity warning at 4:00 AM PDT on September 10. The designated affected zones include the San Diego County Coastal Areas and Orange County Coastal Areas.
Dangerously hot conditions are expected across the region throughout the day. High temperatures will range from the 80s at the beaches to the mid to upper 90s along higher coastal terrain.
The weather service noted that heat-related illnesses increase significantly during extreme heat events. The alert is scheduled to expire at 8:00 PM PDT.
Why it is dangerous and what to do
⚠️ Safety
• Drink plenty of fluids.
• Stay in an air-conditioned room and stay out of the sun.
• Check up on relatives and neighbors.
📊 The numbers, from wweather1 data
San Diego: now +26°, Clear.
That is 6° above the September climate norm.
The record for this date is +39° (1948).
Three-day forecast: 10 September: +31°/+21° · 11 September: +25°/+21° · 12 September: +25°/+20°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates. 🌍 Weather in nearby cities
Los Angeles
now
☀️
+26°
Tijuana
now
☀️
+28°
Phoenix
now
☀️
+33°
San Diego
now
☀️
+26°
Mexicali
now
☀️
+35°
Las Vegas
now
☀️
+32°
📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.