How Crowded Is World War I Memorial in May?
May runs about 1.4× World War I Memorial's average month, which makes it a busy month here — roughly 11% of the park's yearly visitors come in May.
In a typical May the park sees about 110,000 recreation visits, based on National Park Service monthly counts from 2021 to 2025.
That makes May the 2nd-busiest of the park's twelve months, sitting between the April peak (1.5×) and the January low (0.4×).
On our Best Time to Visit score May rates 32/100 ("Poor"), versus the top-rated January at 78/100 — the best overall balance of crowds and daylight.
Because June, July and August together draw about 27% of annual visitors, choosing May instead steps outside that summer crush — the single biggest lever on how crowded the park feels.
You'll have about 14.1 hours of daylight in May to explore — between the 9.3-hour midwinter low and the 14.7-hour summer high.
Park-wide, 2025 drew 838,999 recreation visits, down 22.7% from 1,084,897 in 2024.
Frequently Asked Questions
May is busy at World War I Memorial (about 1.4× the average month). Our best-time score rates it "Poor". The single best month overall is January.
The busiest month is April and the quietest is January. May sits at about 1.4× the park's average, or 11% of annual visitation.
A typical May sees about 110,000 recreation visits at World War I Memorial, based on National Park Service monthly counts from 2021–2025.
Where to stay near World War I Memorial in May
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See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (2021–2025). Updated 2026-07-14.