Home › Campgrounds › Fort Casey State Park Coupeville
Fort Casey State Park
Coastal / Island Rustic / Historic +2
1/12 +7 photos Availability Each day shows how many of this campground’s sites are open.
About this spot Fort Casey Historical State Park is a 998-acre marine camping park with 10,810 feet of saltwater shoreline on Puget Sound (Admiralty Inlet); it includes Keystone Spit, a 2-mile stretch of land separating Admiralty Inlet and Crocket Lake. Fort Casey, Fort Worden and Fort Flagler together were known as the “Triangle of Fire,” a trio of strategically placed fortifications defending the entrance to the Puget Sound at the turn of the 20th Century.
Typical weather Air temperature Average daily high-low
Average daily high and low air temperature, January through December Each vertical bar shows a monthly average daily high and low in degrees Fahrenheit. 45° 38° J January: average high 45°F, average low 38°F 45° 38° F February: average high 45°F, average low 38°F 50° 41° M March: average high 50°F, average low 41°F 54° 44° A April: average high 54°F, average low 44°F 59° 48° M May: average high 59°F, average low 48°F 65° 53° J June: average high 65°F, average low 53°F 69° 55° J July: average high 69°F, average low 55°F 69° 56° A August: average high 69°F, average low 56°F 64° 53° S September: average high 64°F, average low 53°F 57° 48° O October: average high 57°F, average low 48°F 49° 42° N November: average high 49°F, average low 42°F 46° 39° D December: average high 46°F, average low 39°F 5-year average · Open-Meteo
Puget Sound Average water temperature
Average water temperature for Puget Sound, January through December Each point shows the monthly average water temperature in degrees Fahrenheit. 47° J January: average water temperature 47°F 46° F February: average water temperature 46°F 47° M March: average water temperature 47°F 48° A April: average water temperature 48°F 50° M May: average water temperature 50°F 51° J June: average water temperature 51°F 53° J July: average water temperature 53°F 53° A August: average water temperature 53°F 53° S September: average water temperature 53°F 51° O October: average water temperature 51°F 50° N November: average water temperature 50°F 48° D December: average water temperature 48°F Water: Port Townsend (NOAA 9444900)