September Weather in Puerto Rico

Last updated: March 2, 2024

The weather in Puerto Rico, Colombia, during September is characterized by an average temperature of 21°C (69°F). Highs can soar to 28°C (82°F), while lows may dip to 15°C (59°F). Typically, the humidity level in Puerto Rico throughout September hovers around 53%.

15°C (59°F)

Minimum temperature

21°C (69°F)

Average temperature

28°C (82°F)

Maximum temperature

53%

Humidity

Precipitation and Sunshine hours

In September, Puerto Rico averages 89 mm (3.5 inches) of rainfall, typically over the course of 16 rainy days. The month enjoys an average of 12 hours 6 minutes of daylight, with the sun shining for approximately 10 hours 52 minutes each day. Additionally, there is a 31% probability of sunny days during this period.

89 mm (3.5 inches)

Precipitation

16 rainy days

Rainy days

10 hours 52 minutes

Sunshine hours

31%

Chance of sun

UV Index

In September, the UV Index in Puerto Rico reaches a maximum of 15, 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 3 7 11 14 15 13 10 6 2 1 0 0
Exposure Low Moderate High Extreme VeryHigh High Low
Time to burn 45 min 30 min 25 min 10 min 15 min 25 min 45 min

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