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September Weather in Cuba, United States

Last updated: June 24, 2025

In Cuba, United States, the average temperature in September is a pleasant 17°C (62°F). However, be prepared for some variability, as temperatures can dip to a chilly 0°C (33°F) and soar up to a sizzling 31°C (88°F). With an average humidity of 76%, you might feel a bit sticky during your stay. Additionally, expect about 79 mm (3.1 in) of precipitation spread over 10 days, so a light raincoat could come in handy!

September Temperature in Cuba

In September in Cuba, the average temperature is 17°C (62°F). Maximums can reach 31°C (88°F) and minimums can be as low as 0°C (33°F). It's a great time to explore Cuba, so be prepared for both warm days and cooler evenings!

September Weather in Cuba: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cuba, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cuba, September typically has an average temperature of 17°C (62°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec242734445665706862513730
Data source: Temperature data for Cuba 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 Cuba

In Cuba in September, the precipitation amount is 79 mm (3.1 in) over a span of 10 days.

September Precipitation Trends in Cuba

The chart displays monthly precipitation patterns in Cuba, 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 Cuba, September typically receives around 79 mm (3.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec82958411211910711790791299291
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cuba

In Cuba in September, humidity is 76%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping embrace, making travel feel slightly more challenging as it can lead to a sticky discomfort, especially during outdoor excursions.

September Average Humidity in Cuba

This chart illustrates the average monthly humidity levels in Cuba, 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 Cuba is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%91%88%88%82%80%77%72%76%83%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cuba

In Cuba in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Cuba.

Maximum UV Index Levels in Cuba for September

The chart shows the monthly maximum UV Index (UVI) for Cuba 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 Cuba typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098642
Data source: Cuba 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 Cuba Compares to Other Months

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

This table compares monthly weather conditions in Cuba, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (24°F)82 mm (3.2 inches)91%moderate
February Weather-3°C (27°F)95 mm (3.7 inches)91%moderate
March Weather1°C (34°F)84 mm (3.3 inches)88%high
April Weather7°C (44°F)112 mm (4.4 inches)88%very high
May Weather14°C (57°F)119 mm (4.7 inches)82%very high
June Weather18°C (65°F)107 mm (4.2 inches)79%very high
July Weather21°C (70°F)117 mm (4.6 inches)77%very high
August Weather20°C (68°F)90 mm (3.6 inches)72%very high
September Weather17°C (62°F)79 mm (3.1 inches)76%very high
October Weather11°C (52°F)129 mm (5.1 inches)83%high
November Weather3°C (37°F)92 mm (3.6 inches)88%moderate
December Weather-1°C (30°F)91 mm (3.6 inches)87%low

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