May · TX

Big Bend National Park in May.

By Nicholas Major · Last updated

Big Bend National Park in May is hot despite lower visitor counts. Panther Junction's normal high is 89°F (32°C), and the lower desert is hotter. Choose a cooler month for long desert hikes; if your dates are fixed, keep outdoor stops brief and follow NPS heat guidance.

Panther Junction represents the headquarters area. The lower desert and Rio Grande are hotter; the Chisos Mountains are cooler. These station normals do not describe every district.

In short

May averages 42,582 recreation visits, 46% of March's peak. Lower counts do not make the heat safer. February's normal high is 66°F (19°C) if you can move a hiking trip to cooler weather.

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Let heat change the day's plan

NPS advises avoiding hiking during summer's midday heat. Carry water and sun protection, and check the forecast before setting out. A monthly average is not a ceiling on the temperature you may encounter.

Panther Junction's normal low is 62°F (17°C). The Chisos Mountains are cooler than this station, but that does not establish safe conditions or access on a particular mountain route. Check district weather and official conditions separately.

Choose a viewpoint when a hike does not fit

At Mule Ears Viewpoint on Ross Maxwell Scenic Drive, the peaks are visible from the parking area. That offers a scenic stop without committing to the longer trail.

A viewpoint still means time outside in the heat; shorten or change the stop if conditions do not suit you. Confirm camping or lodging before the drive, and make a flexible plan rather than trying to complete a fixed hiking list.

Questions about May

Is May too hot for Big Bend?

It can be too hot for the desert hikes you have in mind. Panther Junction averages 89°F (32°C) highs, and lower elevations are hotter. NPS advises against hiking during summer's midday heat. Choose a cooler month if long walks are the priority.

Is May less crowded than April in Big Bend?

May averages 42,582 recreation visits, compared with 66,154 in April. These monthly counts do not identify Memorial Day weekend crowds or campsite availability.

Sources and limits

NOAA 1991-2020 climate normals: PANTHER JUNCTION, TX US (USC00416792), 3,740 feet. Normal high: 89.3°F (31.8°C); normal low: 62.4°F (16.9°C). These are long-term averages, not a forecast.

NPS Visitor Use Statistics Data Package, 2025: 2021–2025 average recreation visits for Big Bend National Park (BIBE). The May 2025 count is 41,026. Counts measure visits, not unique people or a day's parking pressure.

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Independent site. Not affiliated with or endorsed by the National Park Service. Data comes from the official NPS Visitor Use Statistics Data Package, 2025; editorial analysis is ours. The NPS Arrowhead and other NPS marks are not used.

Last updated · 2026-10-15