Last 7 days
Today
25° / 18° High / Low (°C)
91% Humidity
37% Rain probability
Rain Condition
~1h Rain duration
What this means
In San Diego on 21 Oct 2026, rain is expected: 37% chance, up to 5.4 mm forecast (source: Open-Meteo).
Moderate rain is expected today for around 1 hour — 37% probability, up to 5.4mm forecast. An umbrella is the right call.
Rain season
San Diego averages just 260mm annually, one of the driest major US cities, with virtually no rain from May through October. Winter Pacific fronts (December–March) deliver rain in distinct storms rather than persistent drizzle. El Niño years significantly increase winter rainfall; La Niña years can push totals below 150mm.
Elsewhere in United States