September Weather in Rancho Santa Margarita

Last updated: March 2, 2024

The weather in Rancho Santa Margarita, United States, during September is characterized by an average temperature of 24°C (75°F). Highs can soar to 39°C (102°F), while lows may dip to 14°C (58°F). Typically, the humidity level in Rancho Santa Margarita throughout September hovers around 68%.

14°C (58°F)

Minimum temperature

24°C (75°F)

Average temperature

39°C (102°F)

Maximum temperature

68%

Humidity

Precipitation and Sunshine hours

In September, Rancho Santa Margarita averages 4 mm (0.2 inches) of rainfall, typically over the course of 0 rainy days. The month enjoys an average of 12 hours 19 minutes of daylight, with the sun shining for approximately 10 hours 33 minutes each day. Additionally, there is a 79% probability of sunny days during this period.

4 mm (0.2 inches)

Precipitation

0 rainy days

Rainy days

10 hours 33 minutes

Sunshine hours

79%

Chance of sun

UV Index

In September, the UV Index in Rancho Santa Margarita reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 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 1 3 6 8 10 10 9 6 4 2 1 1
Exposure Low Moderate High VeryHigh High Moderate Low
Time to burn 45 min 30 min 25 min 15 min 25 min 30 min 45 min

Compare Rancho Santa Margarita's Climate with Cities Worldwide