Designation: National Historical Park
Location: Washington
San Juan Island is well known for its splendid vistas, saltwater shores, quiet woodlands, orca whales and one of the last remaining native prairies in the Puget Sound/Northern Straits region. But it was also here in 1859 that the United States and Great Britain nearly went to war over possession of the island, the crisis ignited by the death of a pig.
Spring: Temperatures usually range from 40 F to 60 F. Wildflowers are at their peak around May. Summer: Temperatures usually range from 45 F to 70 F. On very sunny days, be prepared with water-heat exhaustion is a common complaint among park visitors who are unprepared. Fall: Temperatures usually range from 40 F to 65 F. Rain is common. Winter: Temperatures range from 35 F to 50 F. Be prepared with cold and wet weather gear and numerous layers if you intend to be outside. Rain and wind are common.
San Juan Island is served by Washington State Ferries, several private cruise and shuttle craft and two air carriers (one of which has both land and seaplane service). The Washington State Ferries terminal is 85 miles north of Seattle and 90 miles south of Vancouver, BC in Anacortes, WA.
No entrance fees listed.
No entrance passes listed.
Thursday, Sep 24
Mist
High: 57.2°F | Low: 52.6°F
Humidity: 85%
Wind: 9.8 mph
Rain Chance: 82%
UV Index: 2
Sunrise: 07:01 AM
Sunset: 07:06 PM
Moon: Full Moon (99%)
Visibility: 2 mi
Dew Point: 51°F
Cloud Cover: 82%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Friday, Sep 25
Patchy rain nearby
High: 54.3°F | Low: 51.3°F
Humidity: 90%
Wind: 25.1 mph
Rain Chance: 90%
UV Index: 0.8
Sunrise: 07:03 AM
Sunset: 07:04 PM
Moon: Full Moon (100%)
Visibility: 4 mi
Dew Point: 51°F
Cloud Cover: 90%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Saturday, Sep 26
Smoky haze
High: 55.4°F | Low: 50.7°F
Humidity: 77%
Wind: 18.6 mph
Rain Chance: 26%
UV Index: 2.9
Sunrise: 07:04 AM
Sunset: 07:02 PM
Moon: Full Moon (99%)
Visibility: 2 mi
Dew Point: 48.1°F
Cloud Cover: 26%
Pressure: N/A mb
Air Quality (PM2.5): N/A
Ozone: N/A
EPA Index: N/A
Small Craft Advisory issued September 24 at 1:32PM PDT until September 26 at 5:00AM PDT by NWS Seattle WA
Effective: Sep 24, 2026 4:32pm
Expires: Sep 25, 2026 12:45am
* WHAT...Southwest winds 15 to 25 kt.
* WHERE...Northern Inland Waters Including The San Juan Islands.
* WHEN...From 2 PM Friday to 5 AM PDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
Come meet the staff of San Juan Island National Historical Park, provide any feedback you may have, and get your questions answered by the experts!
Location: American Camp Visitor Center outside near the pig statue.
Date: Jun 11, 2026 12:00am to Jun 11, 2026 12:00am
Paid Event
Join us for an afternoon of Maritime and Americana music in your National Park.
Location: American Camp Parade Grounds
Date: Jun 20, 2026 12:00am to Jun 20, 2026 12:00am
Paid Event
Come meet the staff of San Juan Island National Historical Park, provide any feedback you may have, and get your questions answered by the experts!
Location: American Camp Visitor Center outside near the pig statue.
Date: Jul 16, 2026 12:00am to Jul 16, 2026 12:00am
Paid Event
Come meet the staff of San Juan Island National Historical Park, provide any feedback you may have, and get your questions answered by the experts!
Location: American Camp Visitor Center outside near the pig statue.
Date: Aug 6, 2026 12:00am to Aug 6, 2026 12:00am
Paid Event
📍 Physical Address:
4668 Cattle Point Rd.
Friday Harbor, WA 98250
🏤 Mailing Address:
P.O. Box 429
Friday Harbor, WA 98250
📞 Voice Phone: 3603782240
📞 Fax Phone: 3603782615
✉️ Email: allison_herkey@nps.gov