September Weather in Rafael Hernandez

Last updated: March 2, 2024

The weather in Rafael Hernandez, Puerto Rico, during September is characterized by an average temperature of 27°C (81°F). Highs can soar to 31°C (88°F), while lows may dip to 25°C (77°F). Typically, the humidity level in Rafael Hernandez throughout September hovers around 79%.

25°C (77°F)

Minimum temperature

27°C (81°F)

Average temperature

31°C (88°F)

Maximum temperature

79%

Humidity

Precipitation and Sunshine hours

In September, Rafael Hernandez averages 188 mm (7.4 inches) of rainfall, typically over the course of 23 rainy days. The month enjoys an average of 12 hours 12 minutes of daylight, with the sun shining for approximately 10 hours 32 minutes each day. Additionally, there is a 53% probability of sunny days during this period.

188 mm (7.4 inches)

Precipitation

23 rainy days

Rainy days

10 hours 32 minutes

Sunshine hours

53%

Chance of sun

UV Index

In September, the UV Index in Rafael Hernandez reaches a maximum of 13, indicating a level of Extreme exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, 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 5 8 11 13 12 10 7 4 2 1 0
Exposure Low Moderate VeryHigh Extreme VeryHigh High Moderate Low
Time to burn 45 min 30 min 15 min 10 min 15 min 25 min 30 min 45 min

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