Yosemite in May.

Crowd snapshot.

May runs about 383,000 recreation visits in the five-year mean, roughly 71% of August's peak. The first two weeks remain materially quieter than the last two as Memorial Day weekend pulls in a heavy national-holiday crowd. Valley waterfall pullouts at Bridalveil, Tunnel View, and the Lower Yosemite Fall trailhead start filling earlier in the morning by mid-month. Once Tioga and Glacier Point Roads open, vehicle traffic spreads from a Valley-only pattern out toward Tuolumne, Olmsted Point, and the Glacier Point viewpoint, easing some pressure on the Valley loop in the last week of the month.

Weather snapshot.

Yosemite Park HQ's NOAA-normal May high is 70.5°F with a normal low of 44.5°F; comfortable hiking weather across the Valley and into the lower-elevation foothills. Precipitation normals drop to about 1.92 inches as the wet season ends. NOAA snow normals at the Valley station are 0.0 inches. The high country runs much colder: Glacier Point is about 10°F cooler, Tuolumne 15-20°F cooler with lingering snow patches into June. Rivers run muddy and hard with snowmelt; the Merced is dangerously cold and fast through May and should not be entered.

Access snapshot.

Yosemite Valley remains open on all three routes. NPS says Tioga Road typically opens late May or June and Glacier Point Road sometime in May; heavy-snow years run later. Mariposa Grove Road is open. Confirm both road openings on the official NPS Yosemite page before booking a trip that depends on the high country. The Half Dome cables normally go up the Friday before Memorial Day, and a permit is required to use them. The Ahwahnee, Yosemite Valley Lodge, Curry Village, and Housekeeping Camp are open.

Seasonal events.

May is the headline waterfall month. Yosemite Falls runs at peak volume, often misting the lower viewing area on windy days. Bridalveil throws spray across Northside Drive. The Mist Trail to Vernal Fall genuinely soaks hikers. By mid-May a second wave of flowers, dogwood included, blooms in Yosemite, per NPS. High-country flowers wait for the snow to melt; NPS puts Tuolumne Meadows bloom from late June.

Audience verdict.

May is the photographer and waterfall audience month at peak. It also works well for families who can flex around Memorial Day weekend. Early and mid-May deliver still-quiet pullouts with the Valley at its loudest. It is the strongest month for the Mist Trail and Vernal-Nevada Falls hikes for fit visitors. RV travelers still need to plan around no in-park hookups. The high-country uncertainty is real: heavy-snow years can keep Tioga Road closed through May. Anyone whose itinerary depends on Tuolumne or Glacier Point should hold a Valley-side backup plan.

Common questions.

Is May a good time to visit Yosemite?

May runs busy at Yosemite, about 71% of the August peak, with warm weather (average highs near 71°F). It is one of the busier months, though not always the single peak.

How crowded is Yosemite in May?

May averages about 383,092 recreation visits, roughly 71% of Yosemite's busiest month (August). That lands it in the middle of Yosemite's year for crowds.

How much of Yosemite is open in May?

In a typical May, about 75% of Yosemite'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 Yosemite Park HQ, CA (Yosemite Valley) (station USC00049855, 4,018 ft elevation). The access score weights named park roads by route importance for typical wheeled-vehicle openings that month. Year-variable specifics: Tioga and Glacier Point open/close dates, Half Dome cable install/removal, Mariposa Grove Road reopen, the Horsetail Fall walk-in protocol, and lodge season bookends; drift year to year and are hedged in the editorial above; confirm current dates on the official NPS Yosemite page before booking. Independent site, not affiliated with the National Park Service.