Normal weather in Cupertino in September
The weather in Cupertino in September has an average temperature of around 33°C during the day. On average, September sees 102 mm of rain in Cupertino. The wind speed is 3 Beaufort and mainly comes from East.
After August, September in Cupertino starts with a temperature of 32°C and ends around October at 33°C.
The hurricane season in Cupertino lasts from early June to late November.
September averages for Cupertino
![]() | 33°C |
![]() | 34°C |
![]() | 32°C |
![]() | 102 mm |
![]() | 22 days |
Temperature per day in September in Cupertino
This graph shows the average daily maximum temperatures in September in Cupertino, indicated in degrees Celsius.
Rainfall per day in September in Cupertino
This graph shows the average daily rainfall in September in Cupertino, indicated in millimeters.
UV index per day in September in Cupertino
This graph shows the average daily UV index in September in Cupertino.
Yearly temperature in September in Cupertino
This graph shows the average yearly temperature in September in Cupertino, measured in degrees Celsius, over the past years.
Yearly total rainfall in September in Cupertino
This graph shows the average yearly rainfall in millimeters in September in Cupertino, over the past years.
Average daily weather in September
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Experiences with the weather in September in Cupertino
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Average weather in Cupertino per month
Click on a month below to see in detail how the weather typically is in Cupertino and what to expect. Based on the historical weather data of Cupertino, you can view the average temperature, rainfall, wind, and UV index for each day of the month.