San Diego weather by month › May
San Diego in May: weather and what to expect
It’s fine, but not the best. March to April and October are more pleasant.
May weather in San Diego
Daytime high73°F 23°C
Night low58°F 14°C
Rain0.2 in 6 mm
AirComfortable
SunStrong sun
In May, San Diego averages highs of 73°F (23°C) and lows of 58°F (14°C), with 0.2 in (6 mm) of rain. The air feels comfortable and the sun is strong. 1991–2020 averages, not a forecast.
Pack: light layers.
Places with the same weather in May
Match out of 100 for May, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec