Updated July 2026
Best Time to Visit Washington National Parks
Washington has 12 National Park Service units that report visitation. Below, each is ranked by annual visits, with the month our data recommends for the best balance of light crowds, comfortable weather and daylight. Crowds peak in summer almost everywhere — the recommended months show where the quieter shoulder seasons fall.
Washington parks on the map
Click a marker for the park page, or use Where to stay in the table.
Ways to pick a Washington park
Quietest months
- North Cascades — January
- Minidoka — December
- Mount Rainier — February
- Manhattan Project — January
Most-visited
- Olympic — 3,584,187 visits
- Mount Rainier — 1,635,342 visits
- Lake Roosevelt — 1,183,757 visits
- Fort Vancouver — 1,071,161 visits
Most-visited parks in Washington
Olympic
Washington
View Olympic →Mount Rainier
Washington
View Mount Rainier →Lake Roosevelt
Washington
View Lake Roosevelt →
Fort Vancouver
Oregon, Washington
View Fort Vancouver →San Juan Island
Washington
View San Juan Island →Nez Perce
Idaho, Montana, Oregon, Washington
View Nez Perce →| Park | Annual visits | Best time | Busiest | Quietest | Stays |
|---|---|---|---|---|---|
| OlympicNational Park | 3,584,187 | May | Aug | Dec | Where to stay → |
| Mount RainierNational Park | 1,635,342 | May | Jul | Feb | Where to stay → |
| Lake RooseveltNational Recreation Area | 1,183,757 | May | Jul | Dec | Where to stay → |
| Fort VancouverNational Historic Site | 1,071,161 | September | Jul | Dec | Where to stay → |
| San Juan IslandNational Historical Park | 420,922 | April | Jul | Jan | Where to stay → |
| Nez PerceNational Historical Park | 343,910 | July | Aug | Jan | Where to stay → |
| Lewis and ClarkNational Historical Park | 244,195 | May | Jul | Dec | Where to stay → |
| Klondike Gold Rush - Seattle UnitNational Historical Park | 81,652 | February | Jul | Jan | Where to stay → |
| Manhattan ProjectNational Historical Park | 56,390 | May | Jul | Jan | Where to stay → |
| Whitman MissionNational Historic Site | 54,089 | August | May | Dec | Where to stay → |
| North CascadesNational Park | 46,925 | May | Jul | Jan | Where to stay → |
| MinidokaNational Historic Site | 43,539 | September | Jul | Dec | Where to stay → |
Washington park crowd calendar (12 parks, all 12 months)
Download the full best-months table for all 12 of Washington's national parks — each park's month-by-month crowd index (1.0 = its average month), busiest and quietest months, and Best-Time-to-Visit score. Built from NPS visitation data. Enter your email to download. No spam, unsubscribe anytime.
Where to stay near Washington's national parks
Find hotels, cabins and vacation rentals across Washington to base your national-park trip — live availability and prices.
Top-rated places to stay near Washington national parks
Prices for Sep 11–13, 4 adults. Change dates on the map below.
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