What is the weather like in Phoenix vs San Diego in August?

In August, Phoenix averages 41°C high / 29°C low with about 23 mm of rain; San Diego averages 26°C high / 20°C low with about 5 mm.

Phoenix vs San Diego in August

San Diego is the better pick in August — 93 vs 34 on SeasonMap's comfort score. San Diego is hot, dry, muggy air, while Phoenix is sweltering, dry.

Phoenix vs San Diego — August climate, side by side

	Phoenix	San Diego
Comfort score	34/100 (F)	93/100 (S)
Feels-like high	43°C	29°C
Avg high / low	41° / 29°	26° / 20°
Rainfall	23 mm	5 mm
Rainy days	4	1
Humidity	35%	79%
Air quality (AQI)	52	51

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Phoenix vs San Diego in August — FAQ

Is August better in Phoenix or San Diego?: San Diego is the better pick in August — 93 vs 34 on SeasonMap's comfort score. San Diego is hot, dry, muggy air, while Phoenix is sweltering, dry.
What is the weather like in Phoenix vs San Diego in August?: In August, Phoenix averages 41°C high / 29°C low with about 23 mm of rain; San Diego averages 26°C high / 20°C low with about 5 mm.