Mount Rainier in May: Crowds, Weather & What to Pack
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May is one of the best months of the year to visit Mount Rainier National Park: crowds run 20% of the July peak (85,473 average visits), days average 48°F with 15 hours of daylight. Computed from NPS and NOAA data.
Crowds in May
Mount Rainier averages 85,473 recreation visits in May — 20% of what July, the peak month, draws. That crowd level sets the tone for parking, permits and lodging — this is genuine quiet-season territory.
Weather & daylight
Daytime stays cool (highs average 48°F), and mornings are chilly (lows average 33°F). This is one of the wetter months (5.1″ of precipitation on average). Mid-month daylight runs 15 hours.
NOAA 1991–2020 monthly normals, station RAINIER PARADISE RS, WA US (4 mi from park coordinates, 5,427 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Mount Rainier in May
Computed from the month's weather normals above — not a generic list.
- Warm mid-layer (fleece or light puffy) — mornings average 33°F
- Rain shell + pack cover — 5.1″ of precipitation is normal this month
- Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
Common questions
Is Mount Rainier crowded in May?
No — May is one of the quieter months: 20% of the July peak, averaging 85,473 visits (NPS, 2021–2025).
What is the weather like in Mount Rainier in May?
Average highs of 48°F, lows of 33°F, 5.1″ of precipitation (NOAA 1991–2020 normals, RAINIER PARADISE RS, WA US station).
What should I pack for Mount Rainier 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.
Is everything open at Mount Rainier in May?
Sunrise and Stevens Canyon roads are typically open only July–September; the road to Paradise is plowed and open year-round (carry chains in winter). 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