Badlands in May: Crowds, Weather & What to Pack
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May is one of the best months of the year to visit Badlands National Park: crowds run 44% of the July peak (108,524 average visits). Weather: highs average 70°F and lows 44°F, with 3.5″ of precipitation and 14.7 hours of daylight. Computed from NPS and NOAA data.
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Bring for Badlands in May
- Warm mid-layer (fleece or light puffy)See it on AmazonWhy: mornings average 44°F.
- Rain shell + pack coverSee it on AmazonWhy: 3.5″ of precipitation is normal this month.
- Waterproof bootsSee it on AmazonWhy: 3.5″ of precipitation is normal this month.
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Badlands in May: what the park service says
May warms Badlands to afternoons in the low 70s°F, and it is one of the wetter months, with close to 3 inches of rain on average. If showers are forecast, the park strongly recommends a rain jacket and waterproof or water-resistant boots for hiking. Rangers at Ben Reifel hand out maps and Junior Ranger booklets. Entrance fees are collected all year, and the park says roads through the Badlands may close during extreme weather.
Source: NPS 1, NPS 2, checked 2026-11-05.
Crowds in May
Badlands averages 108,524 recreation visits in May — 44% of what July, the peak month, draws. Plan lodging and entries with that in mind.
Weather & daylight
Daytime temperatures are comfortable (highs average 70°F), and mornings are chilly (lows average 44°F). Average precipitation is 3.5″ for the month. Mid-month daylight runs 14.7 hours.
NOAA 1991–2020 monthly normals, station WASTA, SD US (22 mi from park coordinates, 2,328 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Badlands in May
Computed from the month's weather normals above — not a generic list.
- Warm mid-layer (fleece or light puffy) — mornings average 44°F
- Rain shell + pack cover — 3.5″ of precipitation is normal this month
- Waterproof boots — plus navigation and a basic first-aid kit — 3.5″ of precipitation is normal this month
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Also at their best in May
Other parks whose computed May verdict is a best window — same NPS × NOAA formula:
- Lake Clark in May — 7% of peak crowds, highs 59°F, score 96/100
- North Cascades in May — 11% of peak crowds, highs 69°F, score 96/100
- Katmai in May — 1% of peak crowds, highs 52°F, score 95/100
- Gates of the Arctic in May — 12% of peak crowds, highs 56°F, score 94/100
Common questions
Is Badlands crowded in May?
Moderately: May runs 44% of the July peak, averaging 108,524 visits (NPS, 2021–2025). See every month at Badlands.
What is the weather like in Badlands in May?
Average highs of 70°F, lows of 44°F, 3.5″ of precipitation (NOAA 1991–2020 normals, WASTA, SD US station). Compare it with other national parks in May.
What should I pack for Badlands in May?
Warm mid-layer (fleece or light puffy); Rain shell + pack cover; Waterproof boots — plus navigation and a basic first-aid kit — the full weather-computed list is on this page. Going in June instead? Badlands in June has its own list.
See also: the best national parks to visit in May · Last verified 2026-09-24