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August Weather in Louisville, United States

Last updated: June 24, 2025

In August, the average temperature in Louisville, United States hovers around 25°C (77°F), providing a pleasant climate for outdoor activities. Temperatures can vary, dipping to a minimum of 14°C (58°F) and rising to a maximum of 35°C (96°F). Expect 119 mm (4.7 in) of precipitation spread over 14 days, contributing to an average humidity of 76%. Enjoy the balanced weather while exploring this beautiful destination!

August Temperature in Louisville

In August in Louisville, the average temperature is 25°C (77°F). The maximum can reach 35°C (96°F), and the minimum can be as low as 14°C (58°F). This makes Louisville a perfect destination for travelers looking to enjoy warm weather while experiencing a comfortable range of temperatures.

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

The chart illustrates August 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, August typically has an average temperature of 25°C (77°F), with highs reaching up to 35°C (96°F) and lows dropping to around 14°C (58°F).
JanFebMarAprMayJunJulAugSepOctNovDec414752596975797773634945
Data source: Temperature data for Louisville generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Louisville

In Louisville in August, the precipitation amount is 119 mm (4.7 in) over the course of 14 days.

August Precipitation Trends in Louisville

The chart displays monthly precipitation patterns in Louisville, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Louisville, August typically receives around 119 mm (4.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec1011661611331131031041199112283135
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Louisville

In Louisville in August, humidity is 76%. With an average temperature of 25°C (77°F), this humidity feels like a warm, heavy blanket wrapping around you, making traveling feel muggy and requiring frequent breaks to stay refreshed.

August Average Humidity in Louisville

This chart illustrates the average monthly humidity levels in Louisville, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Louisville is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%86%86%82%85%85%83%76%76%80%88%88%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Louisville

In Louisville in August, 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 August

The chart shows the monthly maximum UV Index (UVI) for Louisville in August, 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 August, the maximum UV index in Louisville typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec46810111111109763
Data source: Louisville August 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 August 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 August’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 August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)101 mm (4.0 inches)86%moderate
February Weather8°C (47°F)166 mm (6.5 inches)86%high
March Weather11°C (53°F)161 mm (6.3 inches)86%very high
April Weather15°C (59°F)133 mm (5.2 inches)82%very high
May Weather20°C (69°F)113 mm (4.5 inches)85%extreme
June Weather24°C (75°F)102 mm (4.0 inches)85%extreme
July Weather26°C (79°F)104 mm (4.1 inches)83%extreme
August Weather25°C (77°F)119 mm (4.7 inches)76%very high
September Weather23°C (73°F)90 mm (3.6 inches)76%very high
October Weather17°C (63°F)122 mm (4.8 inches)80%high
November Weather9°C (49°F)83 mm (3.3 inches)88%high
December Weather7°C (45°F)135 mm (5.3 inches)88%moderate

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