Grand Canyon in May: Crowds, Weather & What to Pack
Peak crowds · VisitWhen score 65/100 · #4 of 12 months
May is peak season — expect the year's biggest crowds at Grand Canyon National Park: crowds run 95% of the July peak (506,406 average visits), days average 68°F with 14.1 hours of daylight. Computed from NPS and NOAA data.
Crowds in May
Grand Canyon averages 506,406 recreation visits in May — 95% of what July, the peak month, draws. That crowd level sets the tone for parking, permits and lodging — book early and start days at dawn.
Weather & daylight
Days are pleasant (highs average 68°F), and mornings are chilly (lows average 44°F). It is typically dry (0.7″ of precipitation). Mid-month daylight runs 14.1 hours.
NOAA 1991–2020 monthly normals, station GRAND CANYON VISITOR CTR, AZ US (1 mi from park coordinates, 7,083 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Grand Canyon 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
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
Want quieter or kinder conditions? The computed best months for Grand Canyon are February and April.
Common questions
Is Grand Canyon crowded in May?
Yes — May runs 95% of Grand Canyon's peak, averaging 506,406 recreation visits (NPS, 2021–2025).
What is the weather like in Grand Canyon in May?
Average highs of 68°F, lows of 44°F, 0.7″ of precipitation (NOAA 1991–2020 normals, GRAND CANYON VISITOR CTR, AZ US station).
What should I pack for Grand Canyon in May?
Warm mid-layer (fleece or light puffy); Sturdy broken-in footwear, navigation and a basic first-aid kit — the full weather-computed list is on this page.
Is everything open at Grand Canyon in May?
The North Rim is closed to vehicles roughly December–mid-May; the South Rim is open year-round. Always check the park's live NPS alerts for current conditions.
See also: the best national parks to visit in May · Last verified 2026-07-16