September Weather in Santa Monica

Last updated: March 2, 2024

The weather in Santa Monica, Mexico, during September is characterized by an average temperature of 18°C (64°F). Highs can soar to 26°C (79°F), while lows may dip to 10°C (51°F). Typically, the humidity level in Santa Monica throughout September hovers around 86%.

10°C (51°F)

Minimum temperature

18°C (64°F)

Average temperature

26°C (79°F)

Maximum temperature

86%

Humidity

Precipitation and Sunshine hours

In September, Santa Monica averages 148 mm (5.8 inches) of rainfall, typically over the course of 17 rainy days. The month enjoys an average of 12 hours 14 minutes of daylight, with the sun shining for approximately 9 hours 47 minutes each day. Additionally, there is a 28% probability of sunny days during this period.

148 mm (5.8 inches)

Precipitation

17 rainy days

Rainy days

9 hours 47 minutes

Sunshine hours

28%

Chance of sun

UV Index

In September, the UV Index in Santa Monica reaches a maximum of 14, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 14:00 and 16:00, 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 0 1 2 4 8 11 13 14 12 9 5 2 1
Exposure Low Moderate VeryHigh Extreme VeryHigh Moderate Low
Time to burn 45 min 30 min 15 min 10 min 15 min 30 min 45 min

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