See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
18°
Drizzle
Feels Like: 18°
Min: 18°
Max: 23°
The next few hours will be possible drizzle, with today reaching 23°C and dropping to 17°C. The coming days will be rain throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
05:28
Sunrise
17:25
Sunset
Moon
Waxing Gibbous
16:50
Moonrise
04:24
Moonset
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View stargazing scoreWeather in San Diego today, September 25, 2026
San Diego looks damp on September 25, 2026, so plan for wet spells during the day. Early travel and outdoor time should assume rain can arrive quickly. Early hours look the most unsettled, with rain probability near 100% by 10:00. The thickest cloud arrives around 11:00, reaching about 89%.
Temperatures climb from an overnight low near 18°C toward a daytime high of about 23°C. Expect humidity between 81% and 99%, most humid near 03:00. Expect gentle winds, highest near 12:00 at 1.9 km/h.
Afternoon showers stay in play, peaking near 100% around 12:00. Skies remain cluttered, with cover about 100% by 18:00. Horizontal visibility sits around 8.6 km, briefly nearer 0.6 km. The sun rises at 05:28 and sets at 17:25, for a total of 11 hours 57 minutes of sunlight today.
Overall, San Diego on September 25, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 100% and the high sits around 23°C.
Frequently asked questions about weather in San Diego
How warm does it get in San Diego?
The warmest month in San Diego is May, with average high temperatures of 23°C. The average temperature during this period is around 19°C.
How cold does it get in San Diego?
The coldest month in San Diego is February, with average low temperatures of 14°C. The average temperature during this period is around 18°C.
What is the wettest time of year in San Diego?
The wettest month in San Diego is October, with an average of 513mm of precipitation.
What is the driest time of year in San Diego?
The driest month in San Diego is March, with an average of 52mm of precipitation.
