San Diego Weather Forecast: Fluctuating Temps, Chance of Rain Early

Sunny skies and warmer weather expected to return by midweek

Published on Mar. 8, 2026

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San Diego residents can expect a week of fluctuating temperatures and a slight chance of showers early on, according to the National Weather Service. Temperatures will range from the 50s to the 80s, with the warmest day forecast for Thursday, March 12th.

Why it matters

San Diego's diverse microclimates mean weather conditions can vary significantly across the region, so this forecast provides important information for residents to plan their activities accordingly.

The details

Monday, March 9th, will see a 17% chance of scattered showers with temperatures between 56°F and 71°F. The chance of rain continues into Monday night. By Tuesday, the weather is expected to clear with mostly sunny skies and a high near 69°F. Temperatures will continue to warm through the week, reaching a high of 83°F on Thursday, March 12th, before cooling slightly to 81°F on Friday, March 13th.

  • On Monday, March 9th, there is a 17% chance of scattered showers.
  • Tuesday, March 10th, is forecast to be mostly sunny with a high near 69°F.
  • Thursday, March 12th, is expected to be the warmest day of the week with a high of 83°F.
  • Friday, March 13th, will see a high of 81°F.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing weather-related warnings in the United States.

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The takeaway

San Diegans should be prepared for fluctuating temperatures and a chance of rain early in the week, but can look forward to a warm, sunny stretch by the end of the week. Checking the forecast regularly is important due to the region's diverse microclimates.