September Weather in Leon, United States

Last updated: June 24, 2025

In September, the average temperature in Leon, United States hovers around 20°C (69°F). Expect a range from a refreshing 6°C (43°F) to a warm 33°C (91°F). With an average precipitation of 125 mm (4.9 in) spread over 8 days, don't forget your umbrella! The air carries a 73% humidity, making it a perfect time to experience the unique atmosphere of the region.

September Temperature in Leon

In September, in Leon, the average temperature is 20°C (69°F). The maximum can reach 33°C (91°F), and the minimum can be as low as 6°C (43°F). This pleasant climate makes Leon an ideal destination for travelers looking to enjoy a variety of outdoor activities.

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

The chart illustrates September temperature patterns in Leon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leon, September typically has an average temperature of 20°C (69°F), with highs reaching up to 33°C (91°F) and lows dropping to around 6°C (43°F).

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

September Precipitation in Leon

In Leon in September, the precipitation amount is 125 mm (4.9 in) over the course of 8 days.

September Precipitation Trends in Leon

The chart displays monthly precipitation patterns in Leon, 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 Leon, September typically receives around 125 mm (4.9 inches) of precipitation spread over approximately 8 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Leon

In Leon in September humidity is 73%. With an average temperature of 20°C (69°F), this humidity feels like a warm embrace, making travel slightly sticky but ultimately comfortable as long as you stay hydrated and take breaks in the shade.

September Average Humidity in Leon

This chart illustrates the average monthly humidity levels in Leon, 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 Leon is approximately 73%, 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 Leon

In Leon 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 Leon.

Maximum UV Index Levels in Leon for September

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

Data source: Leon 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 Leon Compares to Other Months

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

This table compares monthly weather conditions in Leon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-4°C (25°F)	44 mm (1.7 inches)	78%	moderate
February Weather	-3°C (27°F)	39 mm (1.6 inches)	80%	moderate
March Weather	5°C (42°F)	98 mm (3.9 inches)	77%	high
April Weather	10°C (51°F)	72 mm (2.8 inches)	77%	very high
May Weather	17°C (63°F)	155 mm (6.1 inches)	77%	very high
June Weather	24°C (75°F)	117 mm (4.6 inches)	81%	extreme
July Weather	25°C (78°F)	96 mm (3.8 inches)	81%	very high
August Weather	24°C (75°F)	86 mm (3.4 inches)	77%	very high
September Weather	20°C (69°F)	125 mm (4.9 inches)	73%	very high
October Weather	12°C (53°F)	157 mm (6.2 inches)	75%	high
November Weather	4°C (40°F)	52 mm (2.0 inches)	85%	moderate
December Weather	0°C (33°F)	35 mm (1.4 inches)	83%	moderate