5-day weather forecast San Diego 21-08-2026
Weather forecast San Diego Friday, August 21 21.08.2026: light rain shower, temperature from 15 °C to 17 °C.
Precipitation probability 90%. Wind up to 16.81 m/s (gusts 23.92 m/s). Air humidity 68–94%, atmospheric pressure 754–764 mm Hg, UV index up to 4.
5 days at a glance — tap a day to open it
Sunrise 06:16
Sunset 19:27
Sunset 19:27
First Quarter69% illuminated
Moonrise 15:36 · Moonset 00:23
Moonrise 15:36 · Moonset 00:23
Chart
TableFri, Aug 21, 2026
Forecast from 15 °C to 17 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
Fri, Aug 21, 2026
San Diego on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.