September Weather in Marianna, United States

Last updated: June 24, 2025

In September, the average temperature in Marianna, United States hovers around 26°C (79°F), creating a warm and inviting atmosphere. However, temperatures can vary significantly, with a minimum of 13°C (56°F) and a maximum reaching up to 38°C (101°F). Be prepared for some rainfall too, as 145 mm (5.7 in) of precipitation is expected over 13 days. With an average humidity of 79%, it's a perfect time to enjoy the vibrant local culture while staying hydrated!

September Temperature in Marianna

In September in Marianna, the average temperature is 26°C (79°F). Maximums can reach 38°C (101°F), while minimums can drop to as low as 13°C (56°F). This makes Marianna a great travel destination for those who enjoy warm weather with a cool reprieve during the night.

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

The chart illustrates September temperature patterns in Marianna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Marianna, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 13°C (56°F).

Data source: Temperature data for Marianna generated using information from the Copernicus Climate Change Service.

September Precipitation in Marianna

In Marianna in September, the precipitation amount is 145 mm (5.7 in) over the course of 13 days.

September Precipitation Trends in Marianna

The chart displays monthly precipitation patterns in Marianna, 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 Marianna, September typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 13 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 Marianna

In Marianna in September humidity is 79%. With an average temperature of 26°C (79°F), this humidity feels like a warm, sticky embrace that can make outdoor activities feel exhausting. Travelers should be prepared for a heavy air that clings to the skin, making hydration essential while navigating the sights and sounds of the city.

September Average Humidity in Marianna

This chart illustrates the average monthly humidity levels in Marianna, 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 Marianna is approximately 79%, 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 Marianna

In Marianna in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Marianna.

Maximum UV Index Levels in Marianna for September

The chart shows the monthly maximum UV Index (UVI) for Marianna 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 Marianna typically reaches 10, which falls under the very high exposure category.

Data source: Marianna 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 Marianna Compares to Other Months

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

This table compares monthly weather conditions in Marianna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (53°F)	90 mm (3.5 inches)	83%	moderate
February Weather	15°C (59°F)	124 mm (4.9 inches)	82%	very high
March Weather	17°C (63°F)	61 mm (2.4 inches)	79%	very high
April Weather	20°C (68°F)	112 mm (4.4 inches)	77%	extreme
May Weather	24°C (75°F)	98 mm (3.9 inches)	74%	extreme
June Weather	27°C (80°F)	162 mm (6.4 inches)	70%	extreme
July Weather	27°C (81°F)	151 mm (6.0 inches)	78%	extreme
August Weather	27°C (81°F)	187 mm (7.4 inches)	78%	extreme
September Weather	26°C (79°F)	145 mm (5.7 inches)	79%	very high
October Weather	22°C (73°F)	87 mm (3.4 inches)	74%	very high
November Weather	15°C (60°F)	46 mm (1.8 inches)	83%	high
December Weather	13°C (56°F)	132 mm (5.2 inches)	86%	moderate