Fog And Cool Temperatures Expected In San Diego County – Light Showers Possible

Mei Lin

4 min read

Post on May 30, 2025

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Dense Fog Advisory

The National Weather Service has issued a dense fog advisory for San Diego County, warning of significantly reduced visibility. Areas most affected will likely include coastal regions and inland valleys, where fog is expected to be particularly dense, impacting morning and evening commutes. Driving in these conditions demands extra caution. This San Diego fog advisory highlights the need for preparedness.

• Expect significantly reduced visibility: Visibility may drop to less than a quarter mile in affected areas, making driving extremely hazardous.
• Drive slowly and cautiously: Increase your following distance significantly, reduce speed, and use your low-beam headlights. Avoid using high beams as they can reflect off the fog and reduce visibility further.
• Use low-beam headlights: This will help other drivers see you more easily. Fog lights, if available, should also be used.
• Avoid unnecessary travel during peak fog hours: If possible, delay travel until visibility improves.
• Be aware of potential delays in air travel: Fog can significantly disrupt air travel. Check with your airline for updates before heading to the airport. Delays are possible at San Diego International Airport (SAN) due to reduced visibility.

Unusually Cool Temperatures

San Diego is bracing for a significant temperature drop, with temperatures expected to be considerably lower than the average for this time of year. This cold weather San Diego is experiencing is unusual and calls for appropriate preparations. Coastal areas might see temperatures in the mid-50s (°F), while inland valleys could dip into the low 40s (°F).

• Expect temperatures to be significantly lower than average: Be prepared for a noticeable chill, especially during the evenings and early mornings.
• Prepare for chilly conditions: Dress warmly in layers to adjust to changing temperatures throughout the day.
• Dress warmly in layers: Layers allow you to adjust to changing temperatures more easily. Include a hat, gloves, and scarf.
• Protect vulnerable individuals (elderly, infants): Ensure that elderly family members, infants, and those with health conditions are protected from the cold.
• Check on neighbors who may need assistance: Reach out to elderly neighbors or those living alone to ensure their well-being during the cold snap.

Chance of Light Showers

While the main concern is the dense fog and cool temperatures, there's also a chance of light showers, particularly in the eastern portions of San Diego County. These rain San Diego showers are not expected to be heavy, but it's prudent to be prepared.

• Light showers are possible, particularly in the mountain and desert areas: While widespread heavy rainfall is unlikely, localized showers are possible.
• Rainfall amounts are expected to be minimal: Accumulation is expected to be insignificant, but standing water might be an issue in poorly drained areas.
• Monitor weather radar for updates: Stay informed about the latest updates from reliable sources like the National Weather Service.
• Keep an umbrella handy: A light umbrella can be useful, especially for those venturing outdoors.

Preparing for the Weather Change

Taking proactive steps can help ensure your safety and comfort during this period of unusual San Diego weather.

• Check your emergency kit: Ensure you have essential supplies, including water, non-perishable food, flashlights, batteries, and a first-aid kit.
• Charge your electronic devices: Having charged devices will allow you to stay connected and access weather updates.
• Monitor weather reports for updates: Stay informed about any changes to the forecast by checking reputable sources.
• Be aware of potential flooding in low-lying areas: Though rainfall is expected to be minimal, be mindful of potential flooding in areas prone to water accumulation.

Conclusion

San Diego County is facing a significant weather shift, with dense fog, unusually cool temperatures, and a slight chance of light showers. It's crucial to take appropriate precautions to ensure your safety and prepare for these changing conditions. Stay informed about the latest San Diego weather updates and take the necessary precautions to stay safe during this period of fog and cool temperatures. Check reliable weather sources frequently for the most up-to-date San Diego weather forecast to ensure you are well-prepared for any changes.