San Diego weather by month › July
San Diego in July: weather and what to expect
It’s fine, but not the best. March to April and October are more pleasant.
July weather in San Diego
Daytime high78°F 26°C
Night low64°F 18°C
Rain0.1 in 2 mm
AirA little humid
SunStrong sun
In July, San Diego averages highs of 78°F (26°C) and lows of 64°F (18°C), with 0.1 in (2 mm) of rain. The air feels a little humid and the sun is strong. 1991–2020 averages, not a forecast.
Pack: light layers.
Places with the same weather in July
Match out of 100 for July, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec