NWS San Diego CAXH.W 0009September 9, 2026
Extreme Heat Warning: San Diego County Coastal Areas and Orange County Coastal, CA
The National Weather Service office in San Diego issued an extreme heat warning for San Diego County Coastal Areas and Orange County Coastal in California, which was in force until 8:00 p.m. local time on September 9. It was the 9th extreme heat warning the NWS office in San Diego issued in 2026. California had 4 extreme heat warnings in September 2026, against 3 in an average September of 2008-2025 (California's extreme heat warnings by year).
ExpiredWarning
In force for 17 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, San Diego CA
- Area
- San Diego County Coastal Areas and Orange County Coastal
- State
- California
- Level
- Warning
- Issued
- 2:58 a.m. PDT, September 9, 2026
- Expires
- 8:00 p.m. PDT, September 9, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KSGX XH.W 0009
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures in the mid 80s to lower 90s at the beaches to around 100 higher coastal terrain with low temperatures in the lower to mid 70s. For the Heat Advisory, high temperatures in the 80s and lower 90s. * WHERE...Orange County Coastal Areas and San Diego County Coastal Areas. * WHEN...For the Extreme Heat Warning, until 8 PM PDT this evening. For the Heat Advisory, from 8 PM this evening to 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Major to Extreme HeatRisk through today. Warm overnight low temperature will limit relief from the heat.
What the agency told people to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.