Weather · Pasadena, United States
Pasadena Weather in September
September in Pasadena averages 26°C by day and 18°C at night, with about 128mm of rain. That makes it one of the best months to visit.
Avg high
26°C
79°F
Avg low
18°C
64°F
Rainfall
128mm
#5 wettest of 12
What to pack
Summer clothes by day; a light layer for evenings. Bring a compact umbrella for the odd shower.
Timing a trip around the weather? A Local Friend in Pasadena builds it around the season for you.