Weather San Diego In September: A Perfect Blend of Summer and Fall
Weather San Diego In September typically experiences warm, sunny weather with average daytime temperatures ranging from 75°F to 80°F (24°C to 27°C) and nighttime temperatures around 65°F to 70°F (18°C to 21°C). The month sees very little rainfall, averaging only 0.2 inches (5 mm). With about 9 hours of daily sunshine and ocean temperatures around