September Weather in Boulder Creek

Last updated: March 2, 2024

The weather in Boulder Creek, United States, during September is characterized by an average temperature of 19°C (67°F). Highs can soar to 35°C (96°F), while lows may dip to 9°C (49°F). Typically, the humidity level in Boulder Creek throughout September hovers around 55%.

9°C (49°F)

Minimum temperature

19°C (67°F)

Average temperature

35°C (96°F)

Maximum temperature

55%

Humidity

Precipitation and Sunshine hours

In September, Boulder Creek averages 3 mm (0.1 inches) of rainfall, typically over the course of 0 rainy days. The month enjoys an average of 12 hours 21 minutes of daylight, with the sun shining for approximately 10 hours 20 minutes each day. Additionally, there is a 80% probability of sunny days during this period.

3 mm (0.1 inches)

Precipitation

0 rainy days

Rainy days

10 hours 20 minutes

Sunshine hours

80%

Chance of sun

UV Index

In September, the UV Index in Boulder Creek reaches a maximum of 9, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 13:00 and 15:00, 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 2 4 7 8 9 8 7 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

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