Mammoth Cave · September · Kentucky
Mammoth Cave National Park in September
September is a good month to visit Mammoth Cave National Park. Crowds are moderate. Highs average 80°F and lows 62°F, with about 3.5 inches of rain.
September gets a good rating at Mammoth Cave. The very best months are Mar–May, Oct–Nov.
What to expect
September is good at Mammoth Cave. Fall color on the surface and easier tour bookings.
Book cave tours online as soon as you know your dates. The most popular tours sell out weeks in advance in summer.
Good to know
- Best months overall: Mar–May, Oct–Nov.
- Closest airport: Nashville (BNA) or Louisville (SDF), about 1.5 hours.
- Before you go: Cave tours require tickets. Bring a jacket; the cave is cool even in summer. Check current conditions on nps.gov.
Questions
Is September a good time to visit Mammoth Cave National Park?
September is a good month to visit Mammoth Cave National Park. Crowds are moderate. Highs average 80°F and lows 62°F, with about 3.5 inches of rain.
What is the weather like in Mammoth Cave National Park in September?
Highs average 80°F and lows 62°F, with about 3.5 inches of rain. September is rated good for visiting.
How crowded is Mammoth Cave National Park in September?
Crowds are moderate in September.