Mammoth Cave weather in May 2025

Expect 77°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Mammoth Cave in May. Check more long-term weather averages for Mammoth Cave in May before you book your next holiday to Kentucky in 2025/2026.

  • 77°F maximum daytime temperature in May in Mammoth Cave77
    77°F max day temperature
  • 9 hours of sunshine per day
  • 12 days with some rainfall in May in Mammoth Cave12
    12 days with some rainfall
  • 54°F minimum night-time temperature in May in Mammoth Cave54
    54°F min night temperature
  • 14 hours of daylight per day in May in Mammoth Cave14
    14 hours of daylight per day
  • No heat & humidity in May in Mammoth Cave0
    No heat & humidity
  • 5.0 inches monthly rainfall in May in Mammoth Cave5.0
    5.0 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Mammoth Cave8
    8 (Very High) UV index

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The May weather guide for Kentucky (Mammoth Cave) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Mammoth Cave in May?

Daytime temperatures usually reach 77°F in Mammoth Cave in May with no heat and humidity, falling to 54°F at night.

How sunny is it in Mammoth Cave in May?

There are normally 9 hours of bright sunshine each day in Mammoth Cave in May - that's 60% of daylight hours.

Does it rain in Mammoth Cave in May?

There are usually 12 days with some rain in Mammoth Cave in May and the average monthly rainfall is 5.0 inches.

Mammoth Cave May sunrise & sunset times

Browse the sunrise and sunset times for Mammoth Cave in May 2025. Select a month to view Mammoth Cave sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:49 18:34
Friday, 16th May 2025 04:35 18:47
Saturday, 31st May 2025 04:26 18:59

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