How Crowded Is Oregon Caves in May?
Busy1.5× average month · best-time score 51/100
May is a busy month at Oregon Caves National Monument & Preserve, running about 1.5× the park's average month — roughly 12% of the year's visitors come in May. That puts it between the July peak and the January low. Overall our best-time score rates May as "Fair" for a visit. You'll get about 14.4 hours of daylight to explore.
Frequently Asked Questions
May is busy at Oregon Caves National Monument & Preserve (about 1.5× the average month). Our best-time score rates it "Fair". The single best month overall is February.
The busiest month is July and the quietest is January. May sits at about 1.5× the park's average, or 12% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025). Updated 2026-06-20.