September Weather in Galesville, United States

Last updated: June 24, 2025

In Galesville, United States, the average temperature in September hovers around 23°C (73°F). You'll experience a pleasant range with a minimum of 12°C (54°F) and a maximum of 32°C (90°F). Prepare for some rain, as precipitation amounts to 113 mm (4.4 in) over approximately 10 days, accompanied by an average humidity of 75%.

September Temperature in Galesville

In September in Galesville, the average temperature is 23°C (73°F). Maximums can reach 32°C (90°F), while minimums can drop as low as 12°C (54°F). This pleasant climate makes it an ideal destination for outdoor activities and exploration.

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

The chart illustrates September temperature patterns in Galesville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Galesville, September typically has an average temperature of 23°C (73°F), with highs reaching up to 32°C (90°F) and lows dropping to around 12°C (54°F).

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

September Precipitation in Galesville

In Galesville in September, the total precipitation amount is 113 mm (4.4 in) over a span of 10 days.

September Precipitation Trends in Galesville

The chart displays monthly precipitation patterns in Galesville, 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 Galesville, September typically receives around 113 mm (4.4 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 Galesville

In Galesville in September, humidity is 75%. With an average temperature of 23°C (73°F), this humidity feels like a warm embrace, making travel slightly uncomfortable yet invigorating as the air wraps around you, creating a sense of walking through a lush, tropical paradise.

September Average Humidity in Galesville

This chart illustrates the average monthly humidity levels in Galesville, 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 Galesville is approximately 75%, 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 Galesville

In Galesville 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 Galesville.

Maximum UV Index Levels in Galesville for September

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

Data source: Galesville 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 Galesville Compares to Other Months

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

This table compares monthly weather conditions in Galesville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (38°F)	69 mm (2.7 inches)	84%	moderate
February Weather	5°C (41°F)	113 mm (4.5 inches)	83%	moderate
March Weather	8°C (46°F)	91 mm (3.6 inches)	83%	high
April Weather	13°C (56°F)	100 mm (3.9 inches)	81%	very high
May Weather	19°C (66°F)	132 mm (5.2 inches)	78%	very high
June Weather	24°C (75°F)	98 mm (3.8 inches)	79%	very high
July Weather	27°C (81°F)	172 mm (6.8 inches)	74%	very high
August Weather	26°C (78°F)	154 mm (6.1 inches)	72%	very high
September Weather	23°C (73°F)	113 mm (4.4 inches)	75%	very high
October Weather	18°C (64°F)	132 mm (5.2 inches)	81%	high
November Weather	10°C (50°F)	86 mm (3.4 inches)	85%	moderate
December Weather	6°C (43°F)	103 mm (4.1 inches)	84%	moderate