How Crowded Is Glacier Bay in May?
May is a very busy month at Glacier Bay National Park & Preserve, running about 1.9× the park's average month — roughly 16% of the year's visitors come in May. That puts it between the July peak and the February low. Overall our best-time score rates May as "Poor" for a visit. Typical May weather averages a high near 54°F and a low around 39°F, with about 3.1" of precipitation. You'll get about 16.6 hours of daylight to explore.
Frequently Asked Questions
May is very busy at Glacier Bay National Park & Preserve (about 1.9× the average month). Our best-time score rates it "Poor". The single best month overall is April.
The busiest month is July and the quietest is February. May sits at about 1.9× the park's average, or 16% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.