Spring is a beautiful time to visit Oregon and Washington. The warm, pleasant days and refreshingly cool nights make these months an excellent time to visit. Wildflowers will be blooming, especially the cherry blossoms in Washington, and the tulip fields in the Skagit Valley are a must-visit during Spring.
All roads and trails will re-open, and as long as you avoid the peak Spring Break weeks from mid-March to early April, the crowds and prices will still be relatively low.
Summer days are sunny and warm. Daytime temperatures can be in the 90s (24-28°C), and the nights will be pleasant, especially for camping.
The higher elevations can still be chilly in the mornings and evenings, so bring a couple of layers with you. This is prime beach season. But be aware that, like most places in the U.S., summer is the peak travel season because of school breaks, so crowds and prices will be at their highest.
Fall is a fantastic season to visit the Pacific Northwest because the temperatures will be cooling off. Rain will become more frequent in late October and November, so you’ll want good rain gear. The foliage will be changing into vibrant colors, and prices and tourist numbers will be decreasing from the peak summer season.
All of the National Parks and roads will still be open in the Fall. This is also the best time of year to visit the Willamette Valley Wine Region and Woodinville Wine Country for the grape harvesting season.
In Winter, you can head inland to the mountains for snow. Or you can head to the coasts where it’ll be cold and drier.
Winter is the low travel season for the Pacific Northwest, so prices and tourist numbers will be at some of their lowest. The exceptions to this are during Christmas and New Year’s.
Some National and State Parks will have trail or road closures, so make sure you check in advance whether a hike or scenic drive is open.