Big Bend National Park in May
May at Big Bend National Park averages a daytime high near 89°F and an overnight low around 62°F, with about 1.3" of precipitation. Visitation runs about 1× the park's average month, which makes May an average month here.
- Average low
- 62°F
- Average high
- 89°F
Range across the year: 37°F to 94°F
- Precipitation
- 1.3 in
- Daylight
- 13.5 hours
Roughly 8% of the park's yearly visitors come in May: about 40,000 recreation visits in a typical year, based on National Park Service monthly counts from 1979 to 2025.
That makes May the 7th-busiest of the park's twelve months, sitting between the March peak (2×) and the August low (0.4×).
On our Best Time to Visit score May rates 61/100 ("Good"). Our recommended month is September: pleasant weather with noticeably thinner crowds (shoulder season).
The daily average of about 76°F is warm enough that midday heat is worth planning around. These figures are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park.
Because June, July and August together draw about 12% 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 13.5 hours of daylight in May to explore — between the 10.1-hour midwinter low and the 13.9-hour summer high.
Park-wide, 2025 drew 568,104 recreation visits, up 1.2% from 561,458 in 2024.
Across the past decade overall visitation has risen about 29.3%, so a May visit is likely to feel busier than it did a few years ago.
How May compares with the months around it
| Month | Avg high / low | Crowds | Best-time score |
|---|---|---|---|
| April | 82°F / 54°F | 1.4× Busy | 69 Good |
| May | 89°F / 62°F | 1.0× Average | 61 Good |
| June | 94°F / 68°F | 0.6× Quiet | 56 Fair |
All twelve months at Big Bend, with the best time to visit.
Things to do at Big Bend in May
The National Park Service tags 15 Big Bend activities for spring. Here are 8 of them. Each links to the park's own page for it.
- Bike Big Bend
- Explore Backcountry Roads
- Primitive Roadside Campsites · reservation required
- Backpacking Big Bend · reservation required
- Big Bend Junior Rangers
- Birdwatch at Rio Grande Village Nature Trail · 15-45 minutes
- Hike the Lost Mine Trail
- See the Rio Grande
Frequently Asked Questions
May averages a daytime high near 89°F and an overnight low around 62°F at Big Bend National Park, with about 1.3 inches of precipitation. These are 1991–2020 NOAA climate normals from the nearest station, about 2.5 miles from the park, so conditions inside the park can differ, especially at other elevations.
May is average at Big Bend National Park (about 1.0× the average month). Our best-time score rates it "Good" at 61/100. Our recommended month is September.
The busiest month is March and the quietest is August. May sits at about 1.0× the park's average, or 8% of annual visitation.
A typical May sees about 40,000 recreation visits at Big Bend National Park, based on National Park Service monthly counts from 1979–2025.
Where to stay near Big Bend in May
Booking a May trip to Big Bend National Park? Compare hotels, cabins and vacation rentals near the park with live May availability and prices.
Top-rated places to stay near Big Bend
Prices for Oct 30–Nov 1, 4 adults. Change dates on the map below.
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See the full ranking of the best national parks to visit in May.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-10-11.