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September Weather in Sabana Grande, Puerto Rico

Last updated: August 31, 2025

In September, the average temperature in Sabana Grande, Puerto Rico is a warm 27°C (81°F), with minimums dipping to 24°C (76°F) and maximums soaring to 32°C (90°F). Expect 159 mm (6.2 in) of precipitation over 21 days, accompanied by an average humidity of 79%. Whether you're planning outdoor activities or enjoying the local culture, be prepared for a humid yet delightful experience!

September Temperature in Sabana Grande

In September, Sabana Grande enjoys a warm average temperature of 27°C (81°F), with maximums reaching 32°C (90°F) and minimums dropping to a comfortable 24°C (76°F). This makes it an ideal destination for travelers seeking pleasant weather and outdoor activities.

September Weather in Sabana Grande: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sabana Grande, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sabana Grande, 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 (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec767676777980818181807978
Data source: Temperature data for Sabana Grande 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 Sabana Grande

In Sabana Grande in September, the total precipitation amount is 159 mm (6.2 in), occurring over the course of 21 days.

September Precipitation Trends in Sabana Grande

The chart displays monthly precipitation patterns in Sabana Grande, 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 Sabana Grande, September typically receives around 159 mm (6.2 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec19264949595386961591029125
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sabana Grande

In Sabana Grande 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 Sabana Grande

This chart illustrates the average monthly humidity levels in Sabana Grande, 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 Sabana Grande is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%75%76%76%78%81%80%79%79%78%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sabana Grande

In Sabana Grande 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 Sabana Grande.

Maximum UV Index Levels in Sabana Grande for September

The chart shows the monthly maximum UV Index (UVI) for Sabana Grande 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 Sabana Grande typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131314131313131298
Data source: Sabana Grande 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 Sabana Grande Compares to Other Months

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

This table compares monthly weather conditions in Sabana Grande, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)18 mm (0.7 inches)76%very high
February Weather25°C (77°F)26 mm (1.0 inches)75%extreme
March Weather24°C (76°F)49 mm (1.9 inches)75%extreme
April Weather25°C (77°F)49 mm (1.9 inches)76%extreme
May Weather26°C (79°F)59 mm (2.3 inches)76%extreme
June Weather27°C (80°F)53 mm (2.1 inches)78%extreme
July Weather27°C (81°F)86 mm (3.4 inches)81%extreme
August Weather27°C (81°F)96 mm (3.8 inches)80%extreme
September Weather27°C (81°F)159 mm (6.2 inches)79%extreme
October Weather27°C (80°F)102 mm (4.0 inches)78%extreme
November Weather26°C (79°F)91 mm (3.6 inches)78%very high
December Weather26°C (78°F)25 mm (1.0 inches)77%very high

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