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September Weather in Mariel, Cuba

Last updated: August 23, 2025

In September, the average temperature in Mariel, Cuba hovers around 27°C (82°F). Expect minimum temperatures of 23°C (73°F) and maximums reaching 32°C (91°F). Be prepared for some rain, as the region experiences 125 mm (4.9 in) of precipitation over approximately 19 days. With an average humidity of 76%, you'll definitely feel the warmth and moisture in the air!

September Temperature in Mariel

In September, in Mariel, the average temperature is 27°C (82°F), with maximums reaching 32°C (91°F) and minimums dropping to as low as 23°C (73°F). This mild climate makes Mariel an ideal destination for travelers seeking warmth and pleasant weather.

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

The chart illustrates September temperature patterns in Mariel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Mariel, September typically has an average temperature of 27°C (82°F), with highs reaching up to 32°C (91°F) and lows dropping to around 23°C (73°F).
JanFebMarAprMayJunJulAugSepOctNovDec727575787981828281807774
Data source: Temperature data for Mariel 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 Mariel

In Mariel in September, the precipitation amount is 125 mm (4.9 in), occurring over a span of 19 days.

September Precipitation Trends in Mariel

The chart displays monthly precipitation patterns in Mariel, 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 Mariel, September typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec2629153716711694991251165444
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Mariel

In Mariel in September, humidity is 76%. With an average temperature of 27°C (82°F), this humidity feels like a thick, warm blanket wrapping around you, making outdoor activities feel muggy and requiring frequent hydration breaks for comfort while traveling.

September Average Humidity in Mariel

This chart illustrates the average monthly humidity levels in Mariel, 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 Mariel is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%77%73%72%72%71%73%74%76%78%79%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Mariel

In Mariel in September, the maximum UV index is 12, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, underscoring the importance of sun protection. For detailed information, you can check the Hourly UV Index in Mariel.

Maximum UV Index Levels in Mariel for September

The chart shows the monthly maximum UV Index (UVI) for Mariel 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 Mariel typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710111212131212121187
Data source: Mariel 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 Mariel Compares to Other Months

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

This table compares monthly weather conditions in Mariel, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather22°C (72°F)26 mm (1.0 inches)78%high
February Weather24°C (75°F)29 mm (1.1 inches)77%very high
March Weather24°C (75°F)15 mm (0.6 inches)73%extreme
April Weather26°C (78°F)37 mm (1.5 inches)72%extreme
May Weather26°C (79°F)166 mm (6.6 inches)72%extreme
June Weather27°C (81°F)116 mm (4.5 inches)71%extreme
July Weather28°C (82°F)94 mm (3.7 inches)73%extreme
August Weather28°C (83°F)99 mm (3.9 inches)74%extreme
September Weather27°C (82°F)125 mm (4.9 inches)76%extreme
October Weather27°C (80°F)116 mm (4.6 inches)78%extreme
November Weather25°C (77°F)54 mm (2.1 inches)79%very high
December Weather23°C (74°F)44 mm (1.7 inches)80%high

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