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Washington RV rental in May
May falls inside Washington's best RV window (May to October).
Olympics and Cascades are accessible; winters bring heavy rain west of the mountains and snow in the passes.
PickRV
Published by PickRV
May on the ground
Weather & conditions
Lengthening bright spells, lowlands in full leaf. Typical 67°F high / 48°F low.
May starts the good stuff — orca shore-watching picks up along the Salish Sea, lowland trails dry, and the campgrounds that are open feel half-secret.
What to do in May
- Shore-based orca watching on the Salish Sea
- San Juan Islands ferry camping
- Lowland lake paddling
Best-fit rigs: Motorhome · Truck or van · Boat
Know before you go
High-country trails and campgrounds remain snowbound well into summer — trust melt-out reports, not the calendar.
Wildfires can close roads and campgrounds in late summer. Winter mountain driving requires chains.
From the verified event registry
May events in Washington
Trip notes
May tips for Washington
Layer up: shoulder-pattern days can swing from a chilly dawn to t-shirt warmth by afternoon.
Pack rain gear and leveling mats for soft or wet sites.
Carry a weather radio and check forecasts daily — transitional months turn fast.
Keep planning
Plan the Washington trip
Nearby & related
Keep planning Washington
Sourced costs, campground directories, and the places worth a detour — the next layer of Washington trip planning.