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May Weather in Louisville, United States

Last updated: June 24, 2025

In May, the average temperature in Louisville, United States hovers around 23°C (73°F). Visitors can expect a minimum temperature of 6°C (42°F) and a maximum of 35°C (96°F). Precipitation levels reach 127 mm (5.0 in) over approximately 11 days, while the average humidity lingers at a high 82%. Ideal for those who enjoy a warm, albeit occasionally wet, climate!

May Temperature in Louisville

In May in Louisville, the average temperature is 23°C (73°F). The maximum can reach 35°C (96°F), while the minimum can dip as low as 6°C (42°F). Overall, this makes Louisville an attractive travel destination for those seeking a warm climate with the possibility of cooler evenings.

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

The chart illustrates May 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, May typically has an average temperature of 23°C (73°F), with highs reaching up to 35°C (96°F) and lows dropping to around 6°C (42°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.

May Precipitation in Louisville

In Louisville in May, the precipitation amount is 127 mm (5.0 in), occurring over 11 days.

May Precipitation Trends in Louisville

The chart displays monthly precipitation patterns in Louisville, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Louisville, May typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec1101811301671271641201309511167120
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Louisville

In Louisville in May, humidity is 82%. With an average temperature of 23°C (73°F), this humidity feels like a warm, sticky embrace, making outdoor activities feel a bit more strenuous but offering a tropical ambiance perfect for leisurely strolls and relaxed sightseeing.

May Average Humidity in Louisville

This chart illustrates the average monthly humidity levels in Louisville, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Louisville is approximately 82%, 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 May generated using information from the Copernicus Climate Change Service.

May UV Index in Louisville

In Louisville in May, 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 May

The chart shows the monthly maximum UV Index (UVI) for Louisville in May, 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 May, the maximum UV index in Louisville typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec47810111111119864
Data source: Louisville May 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 May 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 May’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 May’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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