How Crowded Is Gateway in May?
May is an average month at Gateway National Recreation Area, running about 1.0× the park's average month — roughly 9% 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 "Good" for a visit. Typical May weather averages a high near 71°F and a low around 54°F, with about 4" of precipitation. You'll get about 14.3 hours of daylight to explore.
Frequently Asked Questions
May is average at Gateway National Recreation Area (about 1.0× the average month). Our best-time score rates it "Good". The single best month overall is October.
The busiest month is July and the quietest is February. May sits at about 1.0× the park's average, or 9% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.