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September Weather in Rafael Capo, Puerto Rico

Last updated: August 31, 2025

In Rafael Capo, Puerto Rico, the average temperature in September hovers around a warm 27°C (81°F), with minimums dipping to 24°C (75°F) and maximums reaching 32°C (90°F). Expect the skies to be frequently overcast, with 205 mm (8.1 in) of precipitation spread across 23 days. Humidity levels can be quite high, averaging 79%, making it a month that feels both warm and damp.

September Temperature in Rafael Capo

In September in Rafael Capo, the average temperature is 27°C (81°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 24°C (75°F). This warm weather makes it an ideal time for outdoor activities and exploring what Rafael Capo has to offer.

September Weather in Rafael Capo: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rafael Capo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rafael Capo, September typically has an average temperature of 27°C (81°F), with highs reaching up to 32°C (90°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec767576777980818181807877
Data source: Temperature data for Rafael Capo generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rafael Capo

In Rafael Capo in September, the precipitation amount is 205 mm (8.1 in) over a period of 23 days.

September Precipitation Trends in Rafael Capo

The chart displays monthly precipitation patterns in Rafael Capo, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Rafael Capo, September typically receives around 205 mm (8.1 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec4147877998909110420516210945
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rafael Capo

In Rafael Capo in September, humidity is 79%. With an average temperature of 27°C (81°F), this humidity feels like a warm and sticky embrace, making travel both challenging and invigorating as the air clings to your skin, urging you to seek shade or a refreshing drink.

September Average Humidity in Rafael Capo

This chart illustrates the average monthly humidity levels in Rafael Capo, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Rafael Capo is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%74%75%75%77%80%80%79%78%78%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rafael Capo

In Rafael Capo in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Rafael Capo.

Maximum UV Index Levels in Rafael Capo for September

The chart shows the monthly maximum UV Index (UVI) for Rafael Capo in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Rafael Capo typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: Rafael Capo September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Rafael Capo Compares to Other Months

Weather in Rafael Capo varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Rafael Capo, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Rafael Capo, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (76°F)41 mm (1.6 inches)76%very high
February Weather24°C (76°F)47 mm (1.8 inches)75%extreme
March Weather24°C (76°F)87 mm (3.4 inches)74%extreme
April Weather25°C (77°F)79 mm (3.1 inches)75%extreme
May Weather26°C (79°F)98 mm (3.9 inches)75%extreme
June Weather27°C (80°F)90 mm (3.5 inches)77%extreme
July Weather27°C (81°F)91 mm (3.6 inches)80%extreme
August Weather27°C (81°F)104 mm (4.1 inches)80%extreme
September Weather27°C (81°F)205 mm (8.1 inches)79%extreme
October Weather27°C (80°F)161 mm (6.4 inches)78%extreme
November Weather26°C (79°F)109 mm (4.3 inches)78%very high
December Weather25°C (77°F)45 mm (1.8 inches)76%very high

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