September Weather in Como, United States

Last updated: June 24, 2025

In September, the average temperature in Como, United States is a comfortable 25°C (76°F). This month may bring a range of temperatures, with a minimum dip to 11°C (52°F) and the potential to soar up to 37°C (98°F). While enjoying the warm days, you can expect about 111 mm (4.4 in) of precipitation spread over 7 days, contributing to an average humidity level of 71%. Be prepared for a mix of sun and rain!

September Temperature in Como

In September in Como, the average temperature is 25°C (76°F). Maximum temperatures can reach up to 37°C (98°F), while minimums can drop as low as 11°C (52°F). This makes Como a great destination for travelers looking to enjoy warm days with some cooler evenings.

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

The chart illustrates September temperature patterns in Como, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Como, September typically has an average temperature of 25°C (76°F), with highs reaching up to 37°C (98°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Como

In Como in September, the precipitation amount is 111 mm (4.4 in) over the course of 7 days.

September Precipitation Trends in Como

The chart displays monthly precipitation patterns in Como, 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 Como, September typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 7 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 Como

In Como in September, humidity is 71%. With an average temperature of 25°C (76°F), this humidity feels like a warm, heavy blanket enveloping you, making outdoor adventures feel sticky and slightly uncomfortable, but still enjoyable with the right balance of hydration and shade.

September Average Humidity in Como

This chart illustrates the average monthly humidity levels in Como, 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 Como is approximately 71%, 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 Como

In Como in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Como.

Maximum UV Index Levels in Como for September

The chart shows the monthly maximum UV Index (UVI) for Como 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 Como typically reaches 9, which falls under the very high exposure category.

Data source: Como 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 Como Compares to Other Months

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

This table compares monthly weather conditions in Como, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	115 mm (4.5 inches)	84%	moderate
February Weather	9°C (48°F)	190 mm (7.5 inches)	83%	high
March Weather	14°C (57°F)	170 mm (6.7 inches)	81%	very high
April Weather	16°C (62°F)	148 mm (5.8 inches)	81%	very high
May Weather	22°C (72°F)	129 mm (5.1 inches)	83%	extreme
June Weather	26°C (78°F)	123 mm (4.8 inches)	83%	extreme
July Weather	27°C (81°F)	133 mm (5.2 inches)	81%	extreme
August Weather	27°C (80°F)	115 mm (4.5 inches)	74%	very high
September Weather	25°C (76°F)	111 mm (4.4 inches)	71%	very high
October Weather	18°C (65°F)	101 mm (4.0 inches)	76%	high
November Weather	11°C (51°F)	82 mm (3.2 inches)	84%	high
December Weather	9°C (48°F)	152 mm (6.0 inches)	88%	moderate