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September Weather in Cayes-Jacmel, Haiti

Last updated: August 23, 2025

In September, the average temperature in Cayes-Jacmel, Haiti is a pleasant 26°C (79°F), with minimums dipping to 23°C (74°F) and maximums reaching up to 30°C (87°F). Expect 127 mm (5.0 in) of precipitation over 23 days, and brace yourself for a humidity level of around 76%.

September Temperature in Cayes-Jacmel

In September in Cayes-Jacmel, the average temperature is 26°C (79°F). Maximums can reach 30°C (87°F) and minimums can be as low as 23°C (74°F). This pleasant climate makes Cayes-Jacmel an ideal destination for travelers seeking warm weather and outdoor activities.

September Weather in Cayes-Jacmel: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Cayes-Jacmel, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cayes-Jacmel, September typically has an average temperature of 26°C (79°F), with highs reaching up to 30°C (87°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec757575767879798079787776
Data source: Temperature data for Cayes-Jacmel 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 Cayes-Jacmel

In Cayes-Jacmel in September, the precipitation amount is 127 mm (5.0 in) observed over a span of 23 days.

September Precipitation Trends in Cayes-Jacmel

The chart displays monthly precipitation patterns in Cayes-Jacmel, 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 Cayes-Jacmel, September typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec19227610892798915012712010625
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cayes-Jacmel

In Cayes-Jacmel in September humidity is 76%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities challenging and requiring frequent breaks to hydrate and cool down during your travels.

September Average Humidity in Cayes-Jacmel

This chart illustrates the average monthly humidity levels in Cayes-Jacmel, 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 Cayes-Jacmel is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec65%63%62%62%60%62%70%76%76%76%76%71%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cayes-Jacmel

In Cayes-Jacmel 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 Cayes-Jacmel.

Maximum UV Index Levels in Cayes-Jacmel for September

The chart shows the monthly maximum UV Index (UVI) for Cayes-Jacmel 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 Cayes-Jacmel typically reaches 12, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec810121313131213121198
Data source: Cayes-Jacmel 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 Cayes-Jacmel Compares to Other Months

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

This table compares monthly weather conditions in Cayes-Jacmel, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather24°C (75°F)19 mm (0.8 inches)65%very high
February Weather24°C (75°F)22 mm (0.9 inches)63%very high
March Weather24°C (75°F)76 mm (3.0 inches)62%extreme
April Weather24°C (76°F)108 mm (4.2 inches)62%extreme
May Weather25°C (78°F)92 mm (3.6 inches)60%extreme
June Weather26°C (79°F)79 mm (3.1 inches)61%extreme
July Weather26°C (80°F)89 mm (3.5 inches)70%extreme
August Weather26°C (80°F)150 mm (5.9 inches)76%extreme
September Weather26°C (79°F)127 mm (5.0 inches)76%extreme
October Weather26°C (79°F)119 mm (4.7 inches)76%extreme
November Weather25°C (77°F)106 mm (4.2 inches)76%very high
December Weather24°C (76°F)25 mm (1.0 inches)71%very high

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