July Weather in Louisville, United States

Last updated: June 24, 2025

In Louisville, United States, the average temperature in July hovers around 27°C (81°F). Expect a minimum of 18°C (64°F) and the possibility of rising to a sizzling 37°C (99°F). During this month, the region experiences 120 mm (4.7 in) of precipitation over 17 days, contributing to an average humidity of 82%—perfect for those who enjoy a lush, tropical ambiance!

July Temperature in Louisville

In July in Louisville, the average temperature is 27°C (81°F). Maximum temperatures can reach up to 37°C (99°F), while minimums can dip as low as 18°C (64°F). It’s an ideal time for travelers to enjoy warm weather and outdoor activities in Louisville.

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 27°C (81°F), with highs reaching up to 37°C (99°F) and lows dropping to around 18°C (64°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 120 mm (4.7 in) spread over the course of 17 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 120 mm (4.7 inches) of precipitation spread over approximately 17 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 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

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 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, 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 11, which falls under the extreme 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	8°C (47°F)	110 mm (4.3 inches)	85%	moderate
February Weather	11°C (52°F)	181 mm (7.1 inches)	84%	high
March Weather	15°C (59°F)	130 mm (5.1 inches)	82%	very high
April Weather	17°C (64°F)	167 mm (6.6 inches)	82%	very high
May Weather	23°C (73°F)	127 mm (5.0 inches)	82%	extreme
June Weather	26°C (78°F)	164 mm (6.4 inches)	79%	extreme
July Weather	27°C (81°F)	120 mm (4.7 inches)	82%	extreme
August Weather	27°C (80°F)	130 mm (5.1 inches)	77%	extreme
September Weather	25°C (77°F)	95 mm (3.7 inches)	74%	very high
October Weather	20°C (68°F)	111 mm (4.4 inches)	73%	very high
November Weather	12°C (54°F)	67 mm (2.6 inches)	85%	high
December Weather	10°C (51°F)	120 mm (4.7 inches)	88%	moderate