September Weather in Tomahawk, United States

Last updated: June 24, 2025

In September, the average temperature in Tomahawk, United States hovers around 15°C (60°F), making it a pleasant time to visit. However, be prepared for variability; temperatures can dip to a chilly -1°C (31°F) and rise to a warm 31°C (88°F). During this month, you can expect 90 mm (3.5 in) of precipitation spread over approximately 12 days, with an average humidity of 78% adding to the overall atmosphere.

September Temperature in Tomahawk

In September in Tomahawk, the average temperature is 15°C (60°F), with maximums reaching 31°C (88°F) and minimums dropping as low as -1°C (31°F). This temperature variation makes it essential for travelers to pack accordingly for both warm days and chilly nights.

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

The chart illustrates September temperature patterns in Tomahawk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomahawk, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -1°C (31°F).

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

September Precipitation in Tomahawk

In Tomahawk in September, the precipitation amount is 90 mm (3.5 in) spread over 12 days.

September Precipitation Trends in Tomahawk

The chart displays monthly precipitation patterns in Tomahawk, 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 Tomahawk, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Tomahawk

In Tomahawk in September, humidity is 78%. With an average temperature of 15°C (60°F), this humidity feels like a warm, damp embrace that can make outdoor activities a bit uncomfortable, highlighting the importance of staying hydrated and taking breaks in the shade while exploring.

September Average Humidity in Tomahawk

This chart illustrates the average monthly humidity levels in Tomahawk, 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 Tomahawk 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 Tomahawk

In Tomahawk in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Tomahawk.

Maximum UV Index Levels in Tomahawk for September

The chart shows the monthly maximum UV Index (UVI) for Tomahawk 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 Tomahawk typically reaches 7, which falls under the high exposure category.

Data source: Tomahawk 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 Tomahawk Compares to Other Months

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

This table compares monthly weather conditions in Tomahawk, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-9°C (15°F)	32 mm (1.3 inches)	89%	low
February Weather	-9°C (15°F)	52 mm (2.0 inches)	90%	moderate
March Weather	-2°C (29°F)	48 mm (1.9 inches)	87%	moderate
April Weather	4°C (40°F)	97 mm (3.8 inches)	84%	high
May Weather	13°C (55°F)	97 mm (3.8 inches)	77%	very high
June Weather	19°C (66°F)	100 mm (4.0 inches)	75%	very high
July Weather	21°C (70°F)	110 mm (4.3 inches)	74%	very high
August Weather	19°C (66°F)	113 mm (4.5 inches)	73%	very high
September Weather	15°C (60°F)	90 mm (3.5 inches)	78%	high
October Weather	7°C (46°F)	121 mm (4.8 inches)	84%	moderate
November Weather	-1°C (31°F)	49 mm (1.9 inches)	89%	moderate
December Weather	-6°C (21°F)	56 mm (2.2 inches)	87%	low