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San Diego’s Weather for September 21, 2025: Showers to finish summer

ABC 10News Pinpoint Weather with Moses Small: Showers to finish summer
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Today we’ll see periods of showers throughout the county. Rain totals are expected to be light along the coast, with the best chance of rain in the morning and evening.

A chance of showers remains through Tuesday.

This morning we’re watching subtropical moisture enter the region from the Southwest, providing the fuel for showers.

Many areas may notice a first round of light rain by 8 a.m. The showers will be mostly slow and steady, with quick downpours being unlikely outside of the mountains.

A lower chance of showers lingers for most of the day, with San Diego expecting showers to end the night.

Fall begins tomorrow at 11:19 a.m.!

San Diego gets a break for most of Monday, before more light showers with a slight chance of thunderstorms Tuesday.

We dry out Wednesday, then we have comfortable fall-like weather to end the week.

Sunday’s Highs:
Coast: 74-79°
Inland: 80-85°
Mountains: 72-85°
Deserts: 90-95°

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