September Weather in Ely, United States

Last updated: June 24, 2025

In Ely, United States, the average temperature in September hovers around 18°C (64°F). However, be prepared for a range of temperatures; it can drop as low as -4°C (25°F) or soar to 34°C (93°F). Expect 17 mm (0.7 in) of precipitation over approximately 2 days, with an average humidity level of 41%.

September Temperature in Ely

In September in Ely, the average temperature is 18°C (64°F), with maximums reaching 34°C (93°F) and minimums dipping as low as -4°C (25°F). This wide range makes it essential for travelers to pack for both warm days and cool nights.

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

The chart illustrates September temperature patterns in Ely, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ely, September typically has an average temperature of 18°C (64°F), with highs reaching up to 34°C (93°F) and lows dropping to around -4°C (25°F).

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

September Precipitation in Ely

In Ely in September, the precipitation amount is 17 mm (0.7 in) over a span of 2 days.

September Precipitation Trends in Ely

The chart displays monthly precipitation patterns in Ely, 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 Ely, September typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 2 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 Ely

In Ely in September humidity is 41%. With an average temperature of 18°C (64°F), this humidity feels like a mild and comfortable atmosphere for traveling, allowing you to explore without feeling overly sticky or fatigued.

September Average Humidity in Ely

This chart illustrates the average monthly humidity levels in Ely, 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 Ely is approximately 41%, 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 Ely

In Ely in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Ely.

Maximum UV Index Levels in Ely for September

The chart shows the monthly maximum UV Index (UVI) for Ely 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 Ely typically reaches 10, which falls under the very high exposure category.

Data source: Ely 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 Ely Compares to Other Months

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

This table compares monthly weather conditions in Ely, 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 (24°F)	32 mm (1.3 inches)	84%	moderate
February Weather	-3°C (26°F)	35 mm (1.4 inches)	87%	high
March Weather	1°C (34°F)	64 mm (2.5 inches)	80%	very high
April Weather	7°C (44°F)	40 mm (1.6 inches)	71%	very high
May Weather	12°C (54°F)	44 mm (1.7 inches)	55%	extreme
June Weather	20°C (68°F)	6 mm (0.2 inches)	51%	extreme
July Weather	24°C (76°F)	19 mm (0.7 inches)	41%	extreme
August Weather	23°C (74°F)	6 mm (0.2 inches)	32%	extreme
September Weather	18°C (64°F)	17 mm (0.7 inches)	41%	very high
October Weather	8°C (47°F)	25 mm (1.0 inches)	61%	high
November Weather	4°C (39°F)	21 mm (0.8 inches)	79%	moderate
December Weather	-3°C (26°F)	31 mm (1.2 inches)	83%	moderate