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Coastal Flood Warning Issued for San Diego and Orange County Coasts

October 27, 2026 · wweather1 editorial · 1 min read

The National Weather Service in San Diego has issued a Coastal Flood Warning for coastal areas in San Diego County and Orange County, effective until Thursday, October 29 at 1:00 PM PDT. Significant coastal flooding is expected during late-morning high tides.

The National Weather Service issued the warning at 2:02 AM PDT on October 27. Observed high tides are running 1.5 to 1.7 feet above astronomical predictions, with the highest tide levels occurring in the late morning hours.

Expected impacts include the potential closure of numerous roads and the inundation of low-lying properties, including homes, businesses, and critical infrastructure. Some shoreline erosion is also anticipated during the late-morning hours.

Coastal residents and infrastructure managers in the warned areas are advised to prepare for rising water and take appropriate actions to protect life and property.

Why it is dangerous and what to do

⚠️ Safety
• Take necessary actions to protect flood-prone property.
• Do not drive around barricades.
• Avoid driving through water of unknown depth.
📊 The numbers, from wweather1 data
San Diego: now +15°, Clear.
That is 1° above the October climate norm.
The record for this date is +31° (2003).
Three-day forecast: 27 October: +24°/+20° · 28 October: +23°/+20° · 29 October: +22°/+19°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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