Crowd snapshot.
May averages about 85,000 recreation visits over 2021 to 2025, about 20% of July and almost triple April's 31,000. The 2025 count was 99,974. More of the park opens during the month, and June more than doubles May again, so May is the last month before the summer crowd arrives. NPS notes that waits at the Nisqually and White River entrances can top an hour on the very busiest summer weekends and holidays.
| Field | Value |
|---|---|
| May recreation visits (5-yr mean) | 85,473 |
| Share of July's peak | 20% |
| Crowd band | low |
| Park's busiest month (5-yr mean) | July |
| Park's quietest month (5-yr mean) | February |
Weather snapshot.
Longmire's normals put May's average high at 59.9°F and the low at 36.8°F, with 4.75 inches of precipitation and 2.1 inches of snow. Paradise stays snowbound: NPS's bloom calendar says the subalpine meadows are still under many feet of snow in May, and the Paradise page warns that snow can linger on trails well into June or even July. Avalanches are still common in spring, NPS says.
| Field | Value |
|---|---|
| Average high (°F) | 59.9 |
| Average low (°F) | 36.8 |
| Precipitation (inches) | 4.75 |
| Snowfall (inches) | 2.1 |
| Weather band | shoulder |
| Station | Longmire Rainier NPS, WA at 2,762 ft |
Access snapshot.
Every vehicle must carry chains in the park through May 1, per the NPS tire chain FAQ. After that, the season opens in steps. Ohanapecosh on SR 123 is generally open from late May to early November, though access to other parts of the park from Ohanapecosh can be closed early in the season, per the NPS directions page. NPS publishes no opening date for Stevens Canyon Road, so check the NPS road status page. Paradise Inn is generally open mid-May through early October, per the NPS lodging page, and the NPS hours page listed May 16 for 2026. Cougar Rock's typical season is late May to early October, and Ohanapecosh Campground is closed for the 2026 season, per the NPS campgrounds page. Mowich Lake doesn't usually open until mid-July. There's no timed entry reservation in 2026. Check the NPS current conditions page before you drive.
| Field | Value |
|---|---|
| May access score (0-100) | 65 |
| Year-round route | Nisqually Entrance to Longmire (open all winter except in extreme weather; Longmire to Paradise closes nightly in winter; Sunrise, Stevens Canyon and Mowich Lake are summer roads; the Carbon River Road inside the park is foot and bike only) |
| Verify current road and permit status | Official NPS Mount Rainier conditions page |
Seasonal events.
NPS's bloom calendar for May: the subalpine meadows are still under many feet of snow, but depending on conditions, low-elevation forest wildflowers such as skunk cabbage, western trillium, and sweet coltsfoot begin to emerge. Climbers need a permit to be on a glacier or above the normal high camps, about 10,000 feet, and from May 1 to September 15 a wilderness permit is issued along with each climbing registration. Black bears can be found anywhere in the park, so keep food secured and stay at least 300 feet from any bear.
Audience verdict.
May suits shoulder-season visitors who want Paradise Inn open, a quieter park, and lower-elevation forest walks, and who don't mind snow up high. Climbers start their season. It's early for meadow hikes and too early for Sunrise, whose road is usually open by July 1. Check the Stevens Canyon Road status before you count on a drive across the park.
Common questions.
Is May a good time to visit Mount Rainier?
May runs quiet at Mount Rainier, about 20% of the July peak, with mild shoulder-season weather (average highs near 60°F). If thinner crowds are the goal, it is one of the easier months to pick.
How crowded is Mount Rainier in May?
May averages about 85,473 recreation visits, roughly 20% of Mount Rainier's busiest month (July). That lands it in the middle of Mount Rainier's year for crowds.
How much of Mount Rainier is open in May?
In a typical May, about 65% of Mount Rainier's road network (weighted by how important each route is) is open to wheeled vehicles. Road-opening dates shift year to year, so check the official NPS page for current conditions before you go.
Methodology
Monthly recreation visits come from the official NPS Visitor Use Statistics Data Package, 2025 on NPS IRMA Stats; the statistic shown is Recreation Visits, the 5-year mean for 2021-2025. Climate normals come from NOAA NCEI's 1991-2020 U.S. Climate Normals at Longmire Rainier NPS, WA (station USC00454764, 2,762 ft elevation). The access score weights the Nisqually-Longmire-Paradise corridor's day-use status, Stevens Canyon and Sunrise Road seasonal openings, and Carbon River/Mowich Lake vehicle access for typical wheeled-vehicle openings that month. NPS says no timed-entry reservation is required anywhere in the park in 2026. This page carries typical seasons, not today's status: for closures, fire restrictions, construction and water problems, read the NPS Mount Rainier current conditions page and confirm dates on the official NPS Mount Rainier page before booking. Independent site, not affiliated with the National Park Service.
Independent site. Not affiliated with or endorsed by the National Park Service. Data comes from the official NPS Visitor Use Statistics Data Package, 2025; editorial analysis is ours. The NPS Arrowhead and other NPS marks are not used.