September Weather in Glencoe, United States

Last updated: June 24, 2025

In Glencoe, United States, the average temperature in September is a warm 27°C (81°F), with highs reaching up to 35°C (95°F) and lows dipping to 20°C (68°F). During this month, expect about 170 mm (6.7 in) of precipitation spread over 21 days. The average humidity sits comfortably at 83%, creating a tropical atmosphere perfect for exploration.

September Temperature in Glencoe

In September in Glencoe, the average temperature is 27°C (81°F), with maximums reaching up to 35°C (95°F) and minimums dipping as low as 20°C (68°F). This pleasant climate makes it an ideal destination for travelers seeking warmth and sunshine.

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

The chart illustrates September temperature patterns in Glencoe, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Glencoe, September typically has an average temperature of 27°C (81°F), with highs reaching up to 35°C (95°F) and lows dropping to around 20°C (68°F).

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

September Precipitation in Glencoe

In Glencoe in September, the precipitation amount is 170 mm (6.7 in) over the course of 21 days.

September Precipitation Trends in Glencoe

The chart displays monthly precipitation patterns in Glencoe, 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 Glencoe, September typically receives around 170 mm (6.7 inches) of precipitation spread over approximately 21 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 Glencoe

In Glencoe in September humidity is 83%. With an average temperature of 27°C (81°F), this humidity feels like a warm blanket enveloping you, making sightseeing and outdoor activities feel more exhausting and requiring frequent breaks to relax in the shade or cool off.

September Average Humidity in Glencoe

This chart illustrates the average monthly humidity levels in Glencoe, 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 Glencoe is approximately 83%, 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 Glencoe

In Glencoe in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Glencoe.

Maximum UV Index Levels in Glencoe for September

The chart shows the monthly maximum UV Index (UVI) for Glencoe 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 Glencoe typically reaches 11, which falls under the extreme exposure category.

Data source: Glencoe 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 Glencoe Compares to Other Months

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

This table compares monthly weather conditions in Glencoe, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	16°C (62°F)	39 mm (1.6 inches)	83%	moderate
February Weather	19°C (66°F)	55 mm (2.2 inches)	80%	very high
March Weather	20°C (68°F)	24 mm (0.9 inches)	75%	very high
April Weather	22°C (73°F)	72 mm (2.8 inches)	70%	extreme
May Weather	25°C (77°F)	112 mm (4.4 inches)	68%	extreme
June Weather	27°C (81°F)	202 mm (8.0 inches)	75%	extreme
July Weather	28°C (82°F)	219 mm (8.6 inches)	79%	extreme
August Weather	28°C (82°F)	210 mm (8.3 inches)	81%	extreme
September Weather	27°C (81°F)	170 mm (6.7 inches)	83%	extreme
October Weather	25°C (78°F)	91 mm (3.6 inches)	81%	very high
November Weather	21°C (69°F)	56 mm (2.2 inches)	82%	high
December Weather	18°C (64°F)	79 mm (3.1 inches)	84%	moderate