Season calendar
San Juan Islands Kayak by month
Best months, permit windows and published seasonal conditions in one view. Every band comes from this destination’s verified agency sources — months with nothing published say so.
October
- Autumn · September – October
- Morning fog banks, shortening daylight and cooling water.
Permits
No permit is needed to paddle the Salish Sea itself, but overnight camping is almost entirely at Washington State Parks marine-trail sites (per-night fee, first-come) or BLM sites in the San Juan Islands National Monument with their own capacity rules. Cascadia Marine Trail sites are reserved for non-motorized, beachable craft.
Source: WA State Parks — marine state parks · verified 2026-09-15
Itinerary wizard
Build your San Juan Islands Kayak trip
Answer three questions and this builds a day-by-day frame from the published route, the agency's seasonal windows and this destination's verified packing and hazard notes.
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