About Roche Harbor Marina
Roche Harbor Marina is located on the north end of San Juan Island in Washington State. The island is located approximately 65 miles north of Seattle and the greater Puget Sound area, and southeast of Vancouver Island and the Canadian Gulf islands. Roche Harbor is a historic seaside resort located on San Juan Island, Washington. Steeped in rich history & surrounded by lush gardens, the village is a short drive from nearby Friday Harbor. Our world-class marina hosts vessels of all sizes & offers whale-watching tours, boat and kayak rentals, a float plane dock, and US customs office. Local Port Contacts: Immigration (360) 988-2971 Agriculture Information (360) 988-2971-Border Patrol Information (360) 988-5520



Facilities
COORDINATES
48.60870 N, -123.15309 E
Port Information
Telephone
Berth Sizes
< 10m, 10-20m, 20m+
Depth at MLW
2 - 3m
Manoeuvrability
Good
Channel Marking
Excellent
VHF Channel
78A
Port of Entry
No
Overseas Visitor Berths
Yes
Dock Type
Floating
Style Side To
Yes
Tidal Flow
Negligible
Active Winter
Yes
Weather Forecast
Sun
5AM - 9AM
15 March 2026
- S 4 knots increasing to E 6 knots.
- 2 to 5°C
- Calm sea
- UV Index: 0 - Low
- Cloudy
Sun
9AM - 1PM
15 March 2026
- E 5–7 knots.
- 2 to 6°C
- Calm sea
- UV Index: 1 - Low
- Cloudy
Sun
1PM - 5PM
15 March 2026
- Light and variable.
- 4 to 6°C
- Calm sea
- UV Index: 0 - Low
- Chance of showers