How Crowded Is Big Thicket in May?
May is an average month at Big Thicket National Preserve, running about 1.1× the park's average month — roughly 9% of the year's visitors come in May. That puts it between the October peak and the February low. Overall our best-time score rates May as "Fair" for a visit. Typical May weather averages a high near 87°F and a low around 64°F, with about 4.5" of precipitation. You'll get about 13.5 hours of daylight to explore.
Frequently Asked Questions
May is average at Big Thicket National Preserve (about 1.1× the average month). Our best-time score rates it "Fair". The single best month overall is March.
The busiest month is October and the quietest is February. May sits at about 1.1× the park's average, or 9% of annual visitation.
Source: National Park Service Visitor Use Statistics (1981–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.