September Weather in Alpine

Last updated: March 2, 2024

The weather in Alpine, United States, during September is characterized by an average temperature of 23°C (73°F). Highs can soar to 37°C (99°F), while lows may dip to 13°C (56°F). Typically, the humidity level in Alpine throughout September hovers around 52%.

13°C (56°F)

Minimum temperature

23°C (73°F)

Average temperature

37°C (99°F)

Maximum temperature

52%

Humidity

Precipitation and Sunshine hours

In September, Alpine averages 5 mm (0.2 inches) of rainfall, typically over the course of 1 rainy days. The month enjoys an average of 12 hours 19 minutes of daylight, with the sun shining for approximately 10 hours 42 minutes each day. Additionally, there is a 82% probability of sunny days during this period.

5 mm (0.2 inches)

Precipitation

1 rainy days

Rainy days

10 hours 42 minutes

Sunshine hours

82%

Chance of sun

UV Index

In September, the UV Index in Alpine 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 3 6 9 10 11 9 7 4 2 1 0
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

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