What to Wear in San Diego
San Diego has the most consistently pleasant year-round weather of any major US city. Highs 65-80°F. Lows 50-65°F. Occasional rain in winter. The right wardrobe is light, layered for evening cool, and built around outdoor activities.
Winter in San Diego
December through February. 60-70°F days, 45-55°F nights. Light sweater, jacket for evening. Occasional rain.
Spring in San Diego
March through May. 65-75°F. May Gray (cool marine layer) common.
Summer in San Diego
June through September. 70-85°F at the coast, hotter inland. Light fabrics.
Fall in San Diego
October through November. 70-80°F. Often the warmest months due to Santa Ana winds.
Local tips
Coastal vs. inland temperature differences are dramatic — La Jolla can be 15°F cooler than El Cajon. Evening drops in any season — always carry a sweater.