September Weather in Winsted, United States

Last updated: June 24, 2025

In September, the average temperature in Winsted, United States is a comfortable 18°C (65°F). Expect a minimum of 3°C (37°F) and a maximum of 32°C (90°F), making it a month of diverse weather. You'll encounter about 129 mm (5.1 in) of precipitation over 9 days, with an average humidity of 68%. Prepare for a captivating climate!

September Temperature in Winsted

In September in Winsted, the average temperature is 18°C (65°F). Maximum temperatures can reach up to 32°C (90°F), while the minimum can drop as low as 3°C (37°F). This varying climate makes it essential for travelers to pack for both warm and cool conditions.

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

The chart illustrates September temperature patterns in Winsted, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Winsted, September typically has an average temperature of 18°C (65°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (37°F).

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

September Precipitation in Winsted

In Winsted in September, the total precipitation amount is 129 mm (5.1 in) over the course of 9 days.

September Precipitation Trends in Winsted

The chart displays monthly precipitation patterns in Winsted, 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 Winsted, September typically receives around 129 mm (5.1 inches) of precipitation spread over approximately 9 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 Winsted

In Winsted in September, humidity is 68%. With an average temperature of 18°C (65°F), this humidity feels like a warm, enveloping blanket, making travel somewhat sticky and requiring occasional breaks for refreshing hydration.

September Average Humidity in Winsted

This chart illustrates the average monthly humidity levels in Winsted, 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 Winsted is approximately 68%, 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 Winsted

In Winsted 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 Winsted.

Maximum UV Index Levels in Winsted for September

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

Data source: Winsted 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 Winsted Compares to Other Months

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

This table compares monthly weather conditions in Winsted, 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 (28°F)	81 mm (3.2 inches)	84%	moderate
February Weather	-1°C (30°F)	99 mm (3.9 inches)	82%	moderate
March Weather	2°C (36°F)	91 mm (3.6 inches)	81%	high
April Weather	8°C (47°F)	148 mm (5.8 inches)	78%	very high
May Weather	14°C (58°F)	127 mm (5.0 inches)	69%	very high
June Weather	19°C (67°F)	106 mm (4.2 inches)	69%	very high
July Weather	22°C (73°F)	174 mm (6.9 inches)	62%	very high
August Weather	22°C (71°F)	127 mm (5.0 inches)	65%	very high
September Weather	18°C (65°F)	129 mm (5.1 inches)	68%	very high
October Weather	12°C (54°F)	161 mm (6.4 inches)	74%	high
November Weather	4°C (40°F)	102 mm (4.0 inches)	82%	moderate
December Weather	0°C (32°F)	128 mm (5.0 inches)	80%	low