September Weather in Saint-Jean du Sud, Haiti

Last updated: August 23, 2025

In September, the average temperature in Saint-Jean du Sud, Haiti hovers around 28°C (83°F), providing a warm and inviting climate. You can expect a minimum of 25°C (78°F), while the maximum can reach up to 30°C (87°F). Keep in mind that with an average humidity of 77% and 96 mm (3.8 in) of precipitation spread over 14 days, the air can feel a bit humid and rain is likely. Enjoy the warmth while staying prepared for the occasional shower!

September Temperature in Saint-Jean du Sud

In September in Saint-Jean du Sud, the average temperature is 28°C (83°F). Maximums can reach 30°C (87°F), while minimums can drop to as low as 25°C (78°F). It's a warm and pleasant time to visit, perfect for outdoor activities and enjoying the local scenery.

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

The chart illustrates September temperature patterns in Saint-Jean 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-Jean du Sud, September typically has an average temperature of 28°C (83°F), with highs reaching up to 30°C (87°F) and lows dropping to around 25°C (78°F).

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

September Precipitation in Saint-Jean du Sud

In Saint-Jean du Sud in September, the total precipitation amount is 96 mm (3.8 in) over the course of 14 days.

September Precipitation Trends in Saint-Jean du Sud

The chart displays monthly precipitation patterns in Saint-Jean 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-Jean du Sud, September typically receives around 96 mm (3.8 inches) of precipitation spread over approximately 14 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-Jean du Sud

In Saint-Jean du Sud in September, humidity is 77%. With an average temperature of 28°C (83°F), this humidity feels like walking through a warm, damp blanket, making outdoor activities more challenging and requiring frequent hydration breaks for travelers.

September Average Humidity in Saint-Jean du Sud

This chart illustrates the average monthly humidity levels in Saint-Jean 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-Jean du Sud is approximately 77%, 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-Jean du Sud

In Saint-Jean du Sud in September, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Saint-Jean du Sud.

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

The chart shows the monthly maximum UV Index (UVI) for Saint-Jean 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-Jean du Sud typically reaches 13, which falls under the extreme exposure category.

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

Weather in Saint-Jean 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-Jean du Sud, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint-Jean 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	26°C (79°F)	24 mm (0.9 inches)	74%	very high
February Weather	26°C (79°F)	20 mm (0.8 inches)	74%	extreme
March Weather	26°C (78°F)	18 mm (0.7 inches)	73%	extreme
April Weather	26°C (79°F)	45 mm (1.8 inches)	74%	extreme
May Weather	27°C (81°F)	70 mm (2.7 inches)	75%	extreme
June Weather	28°C (82°F)	31 mm (1.2 inches)	77%	extreme
July Weather	28°C (82°F)	44 mm (1.7 inches)	78%	extreme
August Weather	28°C (83°F)	84 mm (3.3 inches)	78%	extreme
September Weather	28°C (83°F)	96 mm (3.8 inches)	77%	extreme
October Weather	28°C (82°F)	171 mm (6.7 inches)	76%	extreme
November Weather	27°C (81°F)	146 mm (5.7 inches)	76%	very high
December Weather	27°C (80°F)	18 mm (0.7 inches)	75%	very high