June Weather in Cupertino

Last updated: March 2, 2024

The weather in Cupertino, United States, during June is characterized by an average temperature of 18°C (64°F). Highs can soar to 33°C (91°F), while lows may dip to 9°C (48°F). Typically, the humidity level in Cupertino throughout June hovers around 64%.

9°C (48°F)

Minimum temperature

18°C (64°F)

Average temperature

33°C (91°F)

Maximum temperature

64%

Humidity

Precipitation and Sunshine hours

In June, Cupertino averages 1 mm (0.0 inches) of rainfall, typically over the course of 0 rainy days. The month enjoys an average of 14 hours 39 minutes of daylight, with the sun shining for approximately 12 hours 26 minutes each day. Additionally, there is a 74% probability of sunny days during this period.

1 mm (0.0 inches)

Precipitation

0 rainy days

Rainy days

12 hours 26 minutes

Sunshine hours

74%

Chance of sun

UV Index

In June, the UV Index in Cupertino reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 10 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
  07:00 08:00 09:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
UVI 1 2 4 6 9 11 11 11 9 6 4 2 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 25 min 30 min 45 min

Compare Cupertino's Climate with Cities Worldwide