Olympic National Park
United States UNESCO World Heritage Site

Olympic National Park is a national park of the United States and a World Heritage Site located across Clallam County, Jefferson County, Grays Harbor County, and Mason County. Established in 1938, it is operated by the National Park Service and encompasses the Olympic Mountains. It is one of the sights of the country on this site.
Planning a visit
July and August offer the highest daily temperatures, reaching 21 °C and 22 °C respectively, along with lower rainfall of 70 mm to 78 mm over 6 to 9 days. Conversely, November and January experience the heaviest rainfall, with 556 mm and 535 mm falling across 21 to 23 days, alongside daily lows dropping to -1 °C. The nearest airport is Tacoma Narrows Airport in Tacoma, United States, located 100 km away, while Victoria International Airport in Victoria, Canada is 108 km away. The park is situated 3,843 km from Washington, D.C.
Visitors can explore the 3,734 square kilometers of the park, which is named after the Olympic Mountains and the Olympic Peninsula. The park recorded 3,717,267 visitors in 2024. Further travel planning details can be found on the official website provided by the National Park Service.
Weather by month
The warmest month is August, with an average high of 22 °C. The wettest is November, with about 556 mm of rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | 4 | 6 | 7 | 10 | 14 | 18 | 21 | 22 | 19 | 13 | 7 | 4 |
| Average low, °C | -1 | -1 | 0 | 1 | 4 | 8 | 10 | 11 | 8 | 4 | 0 | -2 |
| Rainfall, mm | 535 | 371 | 359 | 249 | 157 | 123 | 70 | 78 | 129 | 351 | 556 | 514 |
| Rainy days | 22 | 20 | 20 | 19 | 12 | 12 | 6 | 9 | 13 | 17 | 21 | 23 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.