How Crowded Is Gateway Arch in April?
April is an average month at Gateway Arch National Park, running about 0.9× the park's average month — roughly 7% of the year's visitors come in April. That puts it between the July peak and the January low. Overall our best-time score rates April as "Good" for a visit. Typical April weather averages a high near 68°F and a low around 45°F, with about 4.6" of precipitation. You'll get about 13.0 hours of daylight to explore.
Frequently Asked Questions
April is average at Gateway Arch National Park (about 0.9× 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 January. April sits at about 0.9× the park's average, or 7% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.