Badlands in May: Crowds, Weather & What to Pack
Best window · VisitWhen score 81/100 · #2 of 12 months
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), days average 70°F with 14.7 hours of daylight. Computed from NPS and NOAA data.
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
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every 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).
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).
What should I pack for Badlands in May?
Warm mid-layer (fleece or light puffy); Rain shell + pack cover; Sturdy broken-in footwear, navigation and a basic first-aid kit — the full weather-computed list is on this page.
See also: the best national parks to visit in May · Last verified 2026-09-12