September Weather in Shelton, United States

Last updated: June 24, 2025

In September, the average temperature in Shelton, United States hovers around 16°C (61°F), with minimums dipping to 7°C (45°F) and maximums reaching 30°C (87°F). Be prepared for some rain, as precipitation averages around 95 mm (3.7 in) over 10 days. The air will feel quite humid, with an average humidity of 74%.

September Temperature in Shelton

In September, in Shelton, the average temperature is 16°C (61°F). The maximum can reach 30°C (87°F), while the minimum can be as low as 7°C (45°F). This pleasant climate makes Shelton an ideal destination for travelers looking to enjoy a mix of warm and cooler weather.

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

The chart illustrates September temperature patterns in Shelton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shelton, September typically has an average temperature of 16°C (61°F), with highs reaching up to 30°C (87°F) and lows dropping to around 7°C (45°F).

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

September Precipitation in Shelton

In Shelton in September, the total precipitation amount is 95 mm (3.7 in) over the course of 10 days.

September Precipitation Trends in Shelton

The chart displays monthly precipitation patterns in Shelton, 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 Shelton, September typically receives around 95 mm (3.7 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 Shelton

In Shelton in September humidity is 74%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making traveling quite uncomfortable as the air feels thick and muggy, potentially leading to fatigue and a longing for a cool breeze.

September Average Humidity in Shelton

This chart illustrates the average monthly humidity levels in Shelton, 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 Shelton is approximately 74%, 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 Shelton

In Shelton 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 Shelton.

Maximum UV Index Levels in Shelton for September

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

Data source: Shelton 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 Shelton Compares to Other Months

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

This table compares monthly weather conditions in Shelton, 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 (42°F)	256 mm (10.1 inches)	86%	low
February Weather	5°C (41°F)	171 mm (6.7 inches)	84%	moderate
March Weather	7°C (45°F)	148 mm (5.8 inches)	85%	moderate
April Weather	10°C (49°F)	124 mm (4.9 inches)	83%	high
May Weather	13°C (56°F)	60 mm (2.4 inches)	84%	very high
June Weather	16°C (61°F)	49 mm (1.9 inches)	84%	very high
July Weather	19°C (66°F)	9 mm (0.4 inches)	82%	very high
August Weather	19°C (66°F)	14 mm (0.6 inches)	73%	very high
September Weather	16°C (61°F)	95 mm (3.7 inches)	74%	high
October Weather	11°C (52°F)	168 mm (6.6 inches)	83%	moderate
November Weather	8°C (47°F)	243 mm (9.6 inches)	86%	moderate
December Weather	5°C (42°F)	250 mm (9.9 inches)	87%	low