SAN DIEGO — Monday afternoon high temperatures will be above seasonal average.

  • Coastal highs 74°-85°, normal around 76°.
  • Inland highs 83°-90°, normal around 88°.
  • Mountain highs 77°-89°, normal around 80°.
  • Desert highs 101°-106°, normal around 101°.

At the beach, the rip current risk will be low with water temperature 71°-74°. Waves are 1'-3' out of the southwest.

A few patches of dense fog are possible during the morning commute. Higher clouds will stream across the region through the day today, but lower clouds should clear out to the coastline by late in the morning. Some thunderstorms may pass through the County this afternoon, but little to no rain is expected.

There is an increased fire risk in the mountains due to gusty winds, low relative humidity, and a small chance for dry lightning. Humidity levels will range from 10-25% and winds gusting to 25 mph are possible.

The UV index will peak at 8 Monday, which is considered Very High. Sun protection is needed, UV radiation from the sun will cause skin damage. The time between 10 AM and 4 PM is when UV radiation from the sun is at its maximum.


A trough of low pressure is settling into the West Coast Monday into Tuesday. Temperatures will slowly fall as onshore flow strengthens and the marine layer rebuilds. This trough will move out of the region by Tuesday night.

Wednesday, another trough of low pressure will renewing the onshore flow and cooling trend. This new trough will last into Thursday, allowing another couple of days of cooling. 

High pressure will slowly strengthen into the weekend, raising temperatures Friday through the weekend. Temperatures will raise back to near average at the coast and inland. above average for the mountain and desert areas. 

Microclimate Forecast - Coast & Inland
KFMB Weather
Microclimate Forecast - Mountain & Desert
KFMB Weather