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August Weather in Louisville, United States

Last updated: June 24, 2025

In Louisville, United States, the average temperature in August hovers around 27°C (80°F), with a minimum of 15°C (60°F) and a maximum reaching 36°C (97°F). Expect approximately 130 mm (5.1 in) of precipitation spread over 15 days, contributing to the region's average humidity of 77%. Prepare for a warm and occasionally wet month! 🌧️

August Temperature in Louisville

In August in Louisville, the average temperature is 27°C (80°F). Maximums can reach 36°C (97°F), while minimums can dip as low as 15°C (60°F). This pleasant climate makes Louisville an ideal destination for travelers seeking both warmth and comfort.

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 27°C (80°F), with highs reaching up to 36°C (97°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec475259637378818077675350
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 total precipitation amount is 130 mm (5.1 in) over the course of 15 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 130 mm (5.1 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec1101811301671271641201309511167120
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 77%. With an average temperature of 27°C (80°F), this humidity feels like walking through a warm, damp blanket that clings to your skin, making outdoor activities feel more strenuous and requiring frequent breaks and hydration for comfort.

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 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%84%82%82%82%79%82%77%74%73%85%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 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 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 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
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 Weather8°C (47°F)110 mm (4.3 inches)85%moderate
February Weather11°C (52°F)181 mm (7.1 inches)84%high
March Weather15°C (59°F)130 mm (5.1 inches)82%very high
April Weather17°C (64°F)167 mm (6.6 inches)82%very high
May Weather23°C (73°F)127 mm (5.0 inches)82%extreme
June Weather26°C (78°F)164 mm (6.4 inches)79%extreme
July Weather27°C (81°F)120 mm (4.7 inches)82%extreme
August Weather27°C (80°F)130 mm (5.1 inches)77%extreme
September Weather25°C (77°F)95 mm (3.7 inches)74%very high
October Weather20°C (68°F)111 mm (4.4 inches)73%very high
November Weather12°C (54°F)67 mm (2.6 inches)85%high
December Weather10°C (51°F)120 mm (4.7 inches)88%moderate

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