Weather in San jose in September
The weather in San jose in September is fickle, ranging from cold to pleasant. Temperatures are between 9 and 18 degrees and there are about 10 days of rain, so it is advised to prepare for both warm and chilly conditions.
Avg Temp
9° - 18°
Avg Rainy Days
10
Avg Dry Days
20
Avg Snow Days
0
Weather Facts - San jose in September
* The warmest temperature recorded in in September is 32°C
* The coldest temperature recorded in San jose in September is (-2°C)
* The average rainfall in San jose in September is 61 mm