July Weather in Louisville, United States

Last updated: June 24, 2025

In Louisville, United States, the average temperature in July is 26°C (80°F), making it a pleasant time to explore. However, temperatures can vary widely, with lows dipping to 15°C (59°F) and highs soaring up to 37°C (99°F). Visitors should also prepare for some rain, as precipitation averages 98 mm (3.8 in) over about 10 days. Notably, the average humidity sits at a high 82%, adding to the area's tropical charm.

July Temperature in Louisville

In July in Louisville, the average temperature is 26°C (80°F). Maximums can reach 37°C (99°F) and minimums can be as low as 15°C (59°F). This pleasant weather makes it an ideal time for outdoor activities and exploring the local attractions.

July Weather in Louisville: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Louisville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Louisville, July typically has an average temperature of 26°C (80°F), with highs reaching up to 37°C (99°F) and lows dropping to around 15°C (59°F).

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

July Precipitation in Louisville

In Louisville in July, the precipitation amount is 98 mm (3.8 in) spread over a period of 10 days.

July Precipitation Trends in Louisville

The chart displays monthly precipitation patterns in Louisville, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Louisville, July typically receives around 98 mm (3.8 inches) of precipitation spread over approximately 10 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Louisville

In Louisville in July, humidity is 82%. With an average temperature of 26°C (80°F), this humidity feels like a heavy, warm blanket wrapping around you, making outdoor activities feel more exhausting and sweaty, which can be quite challenging for traveling.

July Average Humidity in Louisville

This chart illustrates the average monthly humidity levels in Louisville, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Louisville is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Louisville

In Louisville in July, 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 Louisville.

Maximum UV Index Levels in Louisville for July

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

Data source: Louisville July 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 July Weather in Louisville Compares to Other Months

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

This table compares monthly weather conditions in Louisville, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	0°C (33°F)	88 mm (3.4 inches)	84%	moderate
February Weather	2°C (36°F)	98 mm (3.9 inches)	82%	moderate
March Weather	8°C (47°F)	135 mm (5.3 inches)	84%	high
April Weather	13°C (56°F)	121 mm (4.8 inches)	83%	very high
May Weather	20°C (68°F)	146 mm (5.7 inches)	80%	extreme
June Weather	25°C (77°F)	111 mm (4.4 inches)	83%	extreme
July Weather	26°C (80°F)	98 mm (3.8 inches)	82%	very high
August Weather	25°C (77°F)	97 mm (3.8 inches)	82%	very high
September Weather	23°C (73°F)	68 mm (2.7 inches)	79%	very high
October Weather	15°C (60°F)	116 mm (4.6 inches)	79%	high
November Weather	7°C (44°F)	93 mm (3.7 inches)	88%	moderate
December Weather	4°C (39°F)	85 mm (3.3 inches)	87%	moderate