How Crowded Is Tumacácori National Historical Park in March?

March runs about 1.8× Tumacácori National Historical Park's average month, which makes it a very busy month here — roughly 15% of the park's yearly visitors come in March.

In a typical March the park sees roughly 5,800 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes March the 2nd-busiest of the park's twelve months, sitting between the December peak (2.2×) and the August low (0.4×).

On our Best Time to Visit score March rates 44/100 ("Poor"), versus the top-rated August at 78/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical March weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 72°F and an overnight low around 38°F, with about 0.8" of precipitation.

That average of about 55°F is a comfortable range for hiking and being outdoors all day.

Because June, July and August together draw about 9% of annual visitors, choosing March instead steps outside that summer crush — the single biggest lever on how crowded the park feels.

You'll have about 11.8 hours of daylight in March to explore — between the 10-hour midwinter low and the 14-hour summer high.

Park-wide, 2024 drew 35,256 recreation visits, down 6.9% from 37,872 in 2023.

Across the past decade overall visitation has eased about 20.6%, so March may feel a touch quieter than it once did.