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September Weather in Hayti, United States

Last updated: June 24, 2025

In Hayti, United States, the average temperature in September hovers around 17°C (63°F), with a minimum of 2°C (36°F) and a maximum reaching up to 32°C (91°F). Expect about 88 mm (3.5 in) of precipitation spread over 9 days, contributing to an average humidity level of 82%. Whether you're planning to explore or relax, be prepared for a variety of weather conditions!

September Temperature in Hayti

In September in Hayti, the average temperature is 17°C (63°F), with maximums reaching 32°C (91°F) and minimums dipping as low as 2°C (36°F). Be sure to pack accordingly for both warm days and cool nights during your travels.

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

The chart illustrates September temperature patterns in Hayti, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hayti, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (91°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec151531415670737063463324
Data source: Temperature data for Hayti 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 Hayti

In Hayti in September, the precipitation amount is 88 mm (3.5 in) over the course of 9 days.

September Precipitation Trends in Hayti

The chart displays monthly precipitation patterns in Hayti, 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 Hayti, September typically receives around 88 mm (3.5 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec2117507085788010188792430
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Hayti

In Hayti in September, humidity is 82%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket wrapping around you—comfortable yet heavy, making outdoor activities more taxing and requiring frequent breaks for hydration.

September Average Humidity in Hayti

This chart illustrates the average monthly humidity levels in Hayti, 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 Hayti is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%89%81%82%76%81%82%83%82%82%87%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Hayti

In Hayti 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 Hayti.

Maximum UV Index Levels in Hayti for September

The chart shows the monthly maximum UV Index (UVI) for Hayti 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 Hayti typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3568910998532
Data source: Hayti 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 Hayti Compares to Other Months

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

This table compares monthly weather conditions in Hayti, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)21 mm (0.8 inches)85%moderate
February Weather-10°C (15°F)17 mm (0.7 inches)89%moderate
March Weather-1°C (31°F)50 mm (2.0 inches)81%high
April Weather5°C (41°F)70 mm (2.8 inches)82%very high
May Weather13°C (57°F)85 mm (3.3 inches)76%very high
June Weather21°C (70°F)78 mm (3.1 inches)81%very high
July Weather23°C (73°F)80 mm (3.2 inches)82%very high
August Weather21°C (70°F)101 mm (4.0 inches)83%very high
September Weather17°C (63°F)88 mm (3.5 inches)82%very high
October Weather8°C (46°F)79 mm (3.1 inches)82%moderate
November Weather0°C (33°F)23 mm (0.9 inches)87%moderate
December Weather-5°C (24°F)30 mm (1.2 inches)84%low

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