September Weather in Leonardtown, United States

Last updated: June 24, 2025

In Leonardtown, United States, the average temperature in September hovers around 23°C (74°F), making it a pleasant time to visit. Expect minimums of 11°C (53°F) and sizzling maximums of 33°C (92°F). Rain may grace your trip, with an average precipitation of 100 mm (3.9 in) spread across about 11 days. With an average humidity of 75%, stay hydrated and enjoy your time soaking up the local culture!

September Temperature in Leonardtown

In September in Leonardtown, the average temperature is 23°C (74°F), with maximums reaching 33°C (92°F) and minimums dropping as low as 11°C (53°F). This climate makes Leonardtown an ideal destination for travelers seeking pleasant weather and a variety of outdoor activities.

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

The chart illustrates September temperature patterns in Leonardtown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leonardtown, September typically has an average temperature of 23°C (74°F), with highs reaching up to 33°C (92°F) and lows dropping to around 11°C (53°F).

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

September Precipitation in Leonardtown

In Leonardtown in September, the precipitation amount is 100 mm (3.9 in) over the course of 11 days.

September Precipitation Trends in Leonardtown

The chart displays monthly precipitation patterns in Leonardtown, 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 Leonardtown, September typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 11 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 Leonardtown

In Leonardtown in September, humidity is 75%. With an average temperature of 23°C (74°F), this humidity feels like a warm, heavy blanket wrapping around you, making it feel more sweltering than it actually is, which can be quite uncomfortable for traveling.

September Average Humidity in Leonardtown

This chart illustrates the average monthly humidity levels in Leonardtown, 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 Leonardtown is approximately 75%, 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 Leonardtown

In Leonardtown 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 Leonardtown.

Maximum UV Index Levels in Leonardtown for September

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

Data source: Leonardtown 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 Leonardtown Compares to Other Months

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

This table compares monthly weather conditions in Leonardtown, 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 (39°F)	65 mm (2.5 inches)	84%	moderate
February Weather	6°C (43°F)	95 mm (3.7 inches)	83%	moderate
March Weather	9°C (48°F)	79 mm (3.1 inches)	83%	high
April Weather	14°C (58°F)	94 mm (3.7 inches)	81%	very high
May Weather	19°C (67°F)	117 mm (4.6 inches)	78%	very high
June Weather	24°C (76°F)	106 mm (4.2 inches)	79%	very high
July Weather	27°C (81°F)	132 mm (5.2 inches)	74%	very high
August Weather	26°C (79°F)	157 mm (6.2 inches)	72%	very high
September Weather	23°C (74°F)	100 mm (3.9 inches)	75%	very high
October Weather	18°C (64°F)	118 mm (4.7 inches)	81%	high
November Weather	10°C (50°F)	83 mm (3.3 inches)	85%	moderate
December Weather	6°C (44°F)	89 mm (3.5 inches)	84%	moderate