September Weather in Savanna, United States

Last updated: June 24, 2025

In September, the average temperature in Savanna, United States hovers around 20°C (67°F), with a minimum dipping to 3°C (38°F) and a maximum reaching 33°C (93°F). Expect about 119 mm (4.7 in) of precipitation spread over 10 days, contributing to a comfortable average humidity of 78%.

September Temperature in Savanna

In September in Savanna, the average temperature is 20°C (67°F). Maximum temperatures can reach 33°C (93°F), while minimums can drop as low as 3°C (38°F). Overall, it's a great time to visit Savanna, as you can enjoy pleasantly warm days with cooler evenings.

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

The chart illustrates September temperature patterns in Savanna, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Savanna, September typically has an average temperature of 20°C (67°F), with highs reaching up to 33°C (93°F) and lows dropping to around 3°C (38°F).

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

September Precipitation in Savanna

In Savanna in September, the total precipitation amount is 119 mm (4.7 in) over the span of 10 days.

September Precipitation Trends in Savanna

The chart displays monthly precipitation patterns in Savanna, 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 Savanna, September typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 10 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 Savanna

In Savanna in September humidity is 78%. With an average temperature of 20°C (67°F), this humidity feels like walking through a warm, thick blanket, making travel a bit sticky and requiring frequent breaks to find shade and cool refreshments.

September Average Humidity in Savanna

This chart illustrates the average monthly humidity levels in Savanna, 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 Savanna is approximately 78%, 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 Savanna

In Savanna 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 Savanna.

Maximum UV Index Levels in Savanna for September

The chart shows the monthly maximum UV Index (UVI) for Savanna 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 Savanna typically reaches 8, which falls under the very high exposure category.

Data source: Savanna 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 Savanna Compares to Other Months

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

This table compares monthly weather conditions in Savanna, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-5°C (23°F)	56 mm (2.2 inches)	81%	moderate
February Weather	-4°C (25°F)	59 mm (2.3 inches)	81%	moderate
March Weather	4°C (39°F)	80 mm (3.1 inches)	81%	high
April Weather	9°C (48°F)	100 mm (3.9 inches)	82%	very high
May Weather	16°C (61°F)	142 mm (5.6 inches)	78%	very high
June Weather	22°C (73°F)	127 mm (5.0 inches)	81%	very high
July Weather	24°C (76°F)	83 mm (3.3 inches)	79%	very high
August Weather	23°C (73°F)	91 mm (3.6 inches)	77%	very high
September Weather	20°C (67°F)	119 mm (4.7 inches)	78%	very high
October Weather	12°C (53°F)	111 mm (4.4 inches)	78%	high
November Weather	3°C (38°F)	48 mm (1.9 inches)	87%	moderate
December Weather	-1°C (31°F)	48 mm (1.9 inches)	84%	low