Coastal Clearing and Mountain Gusts: San Diego’s March 5 Weather Breakdown

Morning: A Cloudy Start with Gradual Clearing

San Diego residents waking up this Thursday, March 5, 2026, can expect a familiar gray start to the day. Early morning conditions are characterized by significant cloud cover across the coastal basin and inland valleys. Temperatures in the early hours have hovered in the mid-40s to low 50s, making for a crisp commute. However, the National Weather Service indicates that these clouds will be short-lived. By mid-morning, the marine layer is expected to retreat, giving way to a gradual clearing that will allow for ample sunshine by the lunch hour.

Afternoon: Mild Temperatures and Refreshing Breezes

As the sun takes over, temperatures will climb to a pleasant daytime high of approximately 70°F in the downtown area, with coastal strips ranging between 69°F and 74°F. It is the perfect afternoon for outdoor activities, though a light north wind will transition to a westerly sea breeze between 5 and 10 mph. While the coast will remain relatively calm, the air will feel fresh with humidity levels dropping toward 50% as the day progresses. For those heading to the beaches, the sea temperature remains a cool 59°F (15°C), a typical staple for early March.

Evening: Clear Skies and a Cool Night Ahead

The transition into the evening will be seamless, with clear skies projected for the entire region. Temperatures will drop steadily after sunset, reaching an overnight low of approximately 50°F to 54°F. Winds will die down to around 5 mph before becoming calm, providing a peaceful night for the city. With only a 10% to 15% chance of precipitation, rain is not expected to interfere with any Thursday night plans.

Wind Advisories and Safety Notices

While the city and coastal regions will experience manageable gusts up to 20 mph, the National Weather Service has issued more significant alerts for the surrounding areas. A Wind Advisory is currently in effect for the San Bernardino County Mountains and the San Gorgonio Pass near Banning. In these higher elevations and passes, northwest winds of 20 to 30 mph with gusts reaching up to 55 mph are expected through this evening. Local travelers heading inland should be cautious of blowing debris and difficult driving conditions for high-profile vehicles. No immediate rain or flood warnings are active for the San Diego metropolitan area today.