September Weather in Merryville, United States

Last updated: June 24, 2025

In September, the average temperature in Merryville, United States is a balmy 26°C (79°F). However, temperatures can range from a cool 12°C (55°F) to a sizzling 38°C (101°F). Expect 144 mm (5.7 in) of precipitation over about 13 days, contributing to an average humidity of 72%.

September Temperature in Merryville

In September in Merryville, the average temperature is 26°C (79°F). Maximums can reach 38°C (101°F), while minimums can dip as low as 12°C (55°F). It's advisable to pack light clothing for the daytime and a light jacket for the cooler evenings while traveling.

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

The chart illustrates September temperature patterns in Merryville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Merryville, September typically has an average temperature of 26°C (79°F), with highs reaching up to 38°C (101°F) and lows dropping to around 12°C (55°F).

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

September Precipitation in Merryville

In Merryville in September, the precipitation amount is 144 mm (5.7 in) spread over 13 days.

September Precipitation Trends in Merryville

The chart displays monthly precipitation patterns in Merryville, 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 Merryville, September typically receives around 144 mm (5.7 inches) of precipitation spread over approximately 13 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 Merryville

In Merryville in September, humidity is 72%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities feel a bit more strenuous but also adding a tropical charm to your travels.

September Average Humidity in Merryville

This chart illustrates the average monthly humidity levels in Merryville, 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 Merryville is approximately 72%, 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 Merryville

In Merryville 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 Merryville.

Maximum UV Index Levels in Merryville for September

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

Data source: Merryville 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 Merryville Compares to Other Months

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

This table compares monthly weather conditions in Merryville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	11°C (52°F)	105 mm (4.1 inches)	81%	moderate
February Weather	13°C (56°F)	124 mm (4.9 inches)	81%	very high
March Weather	18°C (64°F)	87 mm (3.4 inches)	79%	very high
April Weather	20°C (68°F)	148 mm (5.8 inches)	80%	very high
May Weather	24°C (76°F)	215 mm (8.5 inches)	81%	extreme
June Weather	27°C (81°F)	159 mm (6.2 inches)	76%	extreme
July Weather	28°C (83°F)	124 mm (4.9 inches)	73%	extreme
August Weather	28°C (82°F)	179 mm (7.0 inches)	71%	extreme
September Weather	26°C (79°F)	144 mm (5.7 inches)	72%	very high
October Weather	21°C (71°F)	119 mm (4.7 inches)	73%	very high
November Weather	15°C (59°F)	63 mm (2.5 inches)	83%	high
December Weather	13°C (55°F)	133 mm (5.2 inches)	88%	moderate