May Weather in Simi Valley

Last updated: March 2, 2024

The weather in Simi Valley, United States, during May is characterized by an average temperature of 17°C (64°F). Highs can soar to 30°C (86°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Simi Valley throughout May hovers around 57%.

9°C (49°F)

Minimum temperature

17°C (64°F)

Average temperature

30°C (86°F)

Maximum temperature

57%

Humidity

Precipitation and Sunshine hours

In May, Simi Valley averages 15 mm (0.6 inches) of rainfall, typically over the course of 2 rainy days. The month enjoys an average of 13 hours 56 minutes of daylight, with the sun shining for approximately 11 hours 18 minutes each day. Additionally, there is a 63% probability of sunny days during this period.

15 mm (0.6 inches)

Precipitation

2 rainy days

Rainy days

11 hours 18 minutes

Sunshine hours

63%

Chance of sun

UV Index

In May, the UV Index in Simi Valley reaches a maximum of 11, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 10 11 10 8 5 3 1 1
Exposure Low Moderate High VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 25 min 15 min 10 min 15 min 30 min 45 min

Compare Simi Valley's Climate with Cities Worldwide