September Weather in Saint-Louis du Sud, Haiti

Last updated: August 23, 2025

In September at Saint-Louis du Sud, Haiti, the average temperature hovers around 28°C (83°F), with the minimum dipping to 25°C (76°F) and the maximum reaching 32°C (90°F). This month brings approximately 97 mm (3.8 in) of precipitation over about 17 days, contributing to an average humidity of 76%. Embrace the warm, humid days as you explore the beauty of this destination!

September Temperature in Saint-Louis du Sud

In September in Saint-Louis du Sud, the average temperature is 28°C (83°F), with maximums reaching up to 32°C (90°F) and minimums dropping as low as 25°C (76°F). This pleasant climate makes Saint-Louis du Sud an ideal destination for travelers seeking warm weather and sunshine.

September Weather in Saint-Louis du Sud: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Louis du Sud, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Louis du Sud, September typically has an average temperature of 28°C (83°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (76°F).

Data source: Temperature data for Saint-Louis du Sud generated using information from the Copernicus Climate Change Service.

September Precipitation in Saint-Louis du Sud

In Saint-Louis du Sud in September, the precipitation amount is 97 mm (3.8 in) spread over 17 days.

September Precipitation Trends in Saint-Louis du Sud

The chart displays monthly precipitation patterns in Saint-Louis du Sud, 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 Saint-Louis du Sud, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 17 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Saint-Louis du Sud

In Saint-Louis du Sud in September, humidity is 76%. With an average temperature of 28°C (83°F), this humidity feels like a warm, sticky embrace, making outdoor activities challenging and requiring travelers to stay hydrated and take frequent breaks in the shade.

September Average Humidity in Saint-Louis du Sud

This chart illustrates the average monthly humidity levels in Saint-Louis du Sud, 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 Saint-Louis du Sud is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Louis du Sud

In Saint-Louis du Sud 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 Saint-Louis du Sud.

Maximum UV Index Levels in Saint-Louis du Sud for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Louis du Sud 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 Saint-Louis du Sud typically reaches 12, which falls under the extreme exposure category.

Data source: Saint-Louis du Sud 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 Saint-Louis du Sud Compares to Other Months

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

This table compares monthly weather conditions in Saint-Louis du Sud, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	25°C (78°F)	19 mm (0.8 inches)	65%	very high
February Weather	26°C (78°F)	20 mm (0.8 inches)	63%	extreme
March Weather	26°C (78°F)	34 mm (1.4 inches)	62%	extreme
April Weather	26°C (79°F)	50 mm (2.0 inches)	62%	extreme
May Weather	27°C (81°F)	51 mm (2.0 inches)	60%	extreme
June Weather	28°C (82°F)	37 mm (1.5 inches)	61%	extreme
July Weather	28°C (83°F)	57 mm (2.2 inches)	70%	extreme
August Weather	28°C (83°F)	91 mm (3.6 inches)	76%	extreme
September Weather	28°C (83°F)	97 mm (3.8 inches)	76%	extreme
October Weather	27°C (81°F)	111 mm (4.4 inches)	76%	extreme
November Weather	27°C (80°F)	99 mm (3.9 inches)	76%	very high
December Weather	26°C (79°F)	22 mm (0.9 inches)	71%	very high