ClimateForecastNovemberDecember >>

Cupertino (CA) Climate by Month

The climate in Cupertino is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to mild in the cooler months. It typically sees modest rainfall throughout the year. Now, let’s explore all the climate details to give you a full picture.

Average day and night temperature

In Cupertino, temperatures differ significantly between summer and winter months. Typically, daytime temperatures range from a comfortable 28°C in July to a moderate 15°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to 5°C, particularly during the colder months.

The mean minimum and maximum temperatures throughout the year

Precipitation and rainy days

Cupertino typically sees modest rainfall throughout the year, with an average annual precipitation of 368 mm. The climate in Cupertino shows significant variation throughout the year. Expect moderate rainfall in December, with an average of 80 mm of precipitation over 12 rainy days. In contrast, July offers drier and sunnier days, with around 0.1 mm of rainfall over 0 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

For those who appreciate different seasons, Cupertino serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 10.8 hours of sunshine daily, and embrace the darker days in December, offering only 5.3 hours of daily sunlight.

Monthly hours of sunshine

Data from: San Francisco, the United States of America (45 KM, 28 Miles).

Daily hours of sunshine

Data from: San Francisco, the United States of America (45 KM, 28 Miles).

The best time of year to visit Cupertino in the United States of America

During the months of April, May and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Does Cupertino have a dry season?
    Yes, the months of May, June, July, August, September and October are very dry.
  • Which is the warmest month in Cupertino?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Cupertino?
    The coldest month is January with an average maximum temperature of 15°C.
  • Which is the wettest month in Cupertino?
    December tops the wettest month list with 80 mm of rainfall.
  • Which is the driest month in Cupertino?
    July is the driest month with 0 mm of precipitation.
  • Which is the sunniest month in Cupertino?
    May is the sunniest month with an average of 324 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

    Forecast for Cupertino (CA)

    Sat   Nov 23
    16°C | 7°C
    SW 4 km/h
    2.4 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Sun   Nov 24
    17°C | 6°C
    S 11 km/h
    1.7 mm
    partly cloudy and  chance of rain

    partly cloudy and chance of rain

    Mon   Nov 25
    16°C | 10°C
    SE 11 km/h
    21 mm
    overcast and heavy rain

    overcast and heavy rain