Zion
Waterfalls and green cottonwoods, but crowds build fast, and snowmelt often closes the Narrows.
22 prime · 16 good · April
April is one of the best months of the year for national parks. Utah's Mighty 5 and the Grand Canyon are in their prime, Yosemite's waterfalls are building, and wildflowers carpet the Great Smoky Mountains.
Top picks for April: Zion, Grand Canyon, Great Smoky Mountains, Arches, Haleakalā. Easter and spring break weeks are busy in Utah and Arizona. Late April is usually calmer.
Waterfalls and green cottonwoods, but crowds build fast, and snowmelt often closes the Narrows.
Excellent rim weather and good inner-canyon conditions.
Wildflowers peak in April and May; the Smokies are known as the 'Wildflower National Park.' Synchronous fireflies appear in late May and June.
Ideal temperatures and the busiest time of year.
Shoulder season with fewer crowds and generally clear skies.
Shoulder season, and a great time to visit.
Peak season.
Pleasant weather on the riverfront grounds.
Great hiking weather in the Needles district.
Excellent.
Dogwoods and redbuds bloom on the mountain trails.
Excellent and less crowded, with calm seas.
Still pleasant.
Fruit trees in the historic Fruita orchards bloom in April.
The best season.
Pleasant, but often very windy, with blowing sand.
March brings spring breakers and crowds.
Wildflowers bloom on the surface trails and the Green River runs high.
Wildflowers in March and April.
Mild, but often windy.
Good hiking weather between windy spells.
Excellent for paddling.
The prairie greens up and wildflowers bloom.
The South Rim Road opens fully in spring.
The bats return to the cave in April and May, and the evening bat flight programs start.
The islands turn green, and giant coreopsis blooms bright yellow.
Medano Creek flows at the base of the dunes, usually peaking from late May to early June.
Guided tours usually begin in spring.
Rafting season begins with high water.
Rhododendrons bloom under the redwoods in May and June, and the coast turns green.
Waterfalls and wildflowers bloom in the foothills, but high elevations stay snowy into May.
Wildflowers and blooming trees in April and May.
Wildflowers bloom and bison calves appear on the prairie.
Snow lingers into April.
Wildflowers along the trails and Brandywine Falls running high from snowmelt.
Pleasant through March, with wildflowers in wet years.
Still good through April.
Waterfalls peak in May and June as snow melts.
North Cascades, Glacier, Isle Royale, Voyageurs, Denali, Gates of the Arctic, Katmai, Kobuk Valley, Lake Clark, Wrangell–St. Elias. These parks are largely closed, snowbound or dangerously hot in April.
The top-rated national parks for April are Zion National Park, Grand Canyon National Park, Great Smoky Mountains National Park, Arches National Park, Haleakalā National Park. In total, 22 parks are rated prime and 16 more are rated good this month.
Mammoth Cave, Petrified Forest, Guadalupe Mountains, Congaree are at their best in April without big crowds.
North Cascades, Glacier, Isle Royale, Voyageurs, Denali, Gates of the Arctic, Katmai, Kobuk Valley are rated poor in April, usually because of closures, snow or extreme heat.
April is one of the best months of the year for national parks. Easter and spring break weeks are busy in Utah and Arizona. Late April is usually calmer.
Last reviewed October 4, 2026. Ratings are editorial. Rules and road openings change each year, so confirm on the official NPS site before you go.