Moran State Park

Park Island state park with Mount Constitution summit views

On Orcas Island in Washington’s San Juan archipelago, Moran State Park features Mount Constitution, evergreen forests, lakes and miles of trails; visitors hike or bike and climb the summit lookout for island and channel views.

Main image

Moran State Park is a Washington State park located on Orcas Island in the San Juan Islands. It was formed from land donated in 1921 and now comprises several thousand acres of forest, lakes, and peaks.

The core of the park was donated to Washington State in 1921 by Robert Moran, a Seattle-area shipbuilder and former mayor who owned much of the land on Orcas Island. In the 1930s the Civilian Conservation Corps and other New Deal-era programs built many of the park’s structures and the stone observation tower on Mount Constitution.

Moran State Park occupies the central and eastern part of Orcas Island in the San Juan Islands archipelago, accessible from the Washington mainland via ferry services from Anacortes and by road from the island’s ferry terminal. The park sits amid mixed Douglas-fir and cedar forests with lakes and upland ridges typical of the islands’ terrain.

  • Founding and donor: Donated to the state in 1921 by shipbuilder Robert Moran, forming the core of the park's current acreage.
  • Size and terrain: Covers roughly 5,252 acres and includes developed lakes, mixed forest, and the highest summit in the San Juan Islands.
  • Best viewpoints: Best viewpoints are the Mount Constitution observation tower for wide island and mountain vistas, and lakeside spots such as Cascade Lake for sunrise and calm-water views.

What to See #

  • Mount Constitution: Sits at the park's highest point and is the tallest peak in the San Juan Islands at about 2,400 feet (roughly 730 meters). Features a stone observation tower built by the Civilian Conservation Corps in the 1930s that provides panoramic views across the islands and to the Olympic Mountains on clear days.
  • Cascade Lake: A freshwater lake with a developed campground, picnic areas, and a day-use swimming beach that is one of the park's primary recreation hubs for boating and fishing.
  • Mountain Lake: A smaller mountain lake used for quieter water recreation and short shoreline trails; several trailheads around the lake connect to the park's upland trail network.
  • Campgrounds and day-use areas: Group and family campgrounds located near Cascade Lake and other park lakes, offering tent and RV sites, basic amenities, and trail access to nearby peaks and lakes.
Moran State Park
Moran State Park, 1171 Mt Constitution Rd, Orcas Island, WA 98245, United States
48.6565, -122.8177
Park: Year-round (daylight hours); some facilities seasonal
Washington State Discover Pass required for vehicle day-use or camping fees apply

How to Get to Moran State Park #

Moran State Park is on Orcas Island. Visitors typically take a ferry from Anacortes to Orcas Island, then drive or bike to the park (Mount Constitution Road). The park is about a 20-30 minute drive from the Orcas ferry terminal.

Tips for Visiting Moran State Park #

  • Climb Mount Constitution early for sunrise views above the San Juan archipelago.
  • Bring layers and expect sea-fog; weather changes quickly on the island.
  • Reserve campsites in the summer; picnic areas fill on weekends.

Best Time to Visit Moran State Park #

Late spring through early autumn for best weather and full facilities; summer is busiest.

Summer
June-August · 12-24°C
Best weather for hiking, biking and boating; busiest season.
Spring
April-May · 6-16°C
Wildflowers and quieter trails; some services may open later in the season.
Autumn
September-October · 8-18°C
Crisp, clear days and fewer visitors; excellent for photography.

Weather & Climate near Moran State Park #

Climate

Moran State Park's climate is classified as Warm-Summer Mediterranean - Warm-Summer Mediterranean climate with mild summers (peaking in August) and cold winters (coldest in January). Temperatures range from 0°C to 20°C. Abundant rainfall (1013 mm/year), wettest in November.

Temperature & Rainfall
Temperature Range
20°
Warmest Month
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 6°C and lows of 0°C. Significant rainfall (141 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

141 mm
Rainfall
3.3 m/s
Wind
Light Breeze

February

February is cold with highs of 8°C and lows of 2°C. Regular rainfall (95 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

95 mm
Rainfall
3.2 m/s
Wind
Light Breeze

March

March is cold with highs of 9°C and lows of 2°C. Regular rainfall (87 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

87 mm
Rainfall
3.2 m/s
Wind
Light Breeze

April

April is cold with highs of 11°C and lows of 4°C. Moderate rainfall (75 mm).

Comfort

Feels Like Cold
C
Temperature
11°

Weather

75 mm
Rainfall
3.1 m/s
Wind
Light Breeze

May

May is cool with highs of 15°C and lows of 6°C. Moderate rainfall (59 mm).

Comfort

10°
Feels Like Cool
10°C
Temperature
15°

Weather

59 mm
Rainfall
2.9 m/s
Wind
Calm

June

June is cool with highs of 17°C and lows of 8°C. Moderate rainfall (49 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
17°

Weather

49 mm
Rainfall
3.0 m/s
Wind
Light Breeze

July

July is cool with highs of 20°C and lows of 10°C. Moderate rainfall (32 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 20°

Weather

32 mm
Rainfall
2.8 m/s
Wind
Calm

August

August is cool with highs of 20°C and lows of 11°C. Moderate rainfall (38 mm).

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 20°

Weather

38 mm
Rainfall
2.6 m/s
Wind
Calm

September

September is cool with highs of 18°C and lows of 9°C. Moderate rainfall (44 mm).

Comfort

14°
Feels Like Cool
14°C
Temperature
18°

Weather

44 mm
Rainfall
2.4 m/s
Wind
Calm

October

October is cold with highs of 13°C and lows of 6°C. Regular rainfall (97 mm).

Comfort

Feels Like Cold
C
Temperature
13°

Weather

97 mm
Rainfall
2.6 m/s
Wind
Calm

November

November is cold with highs of 8°C and lows of 3°C. The wettest month with heavy rain (160 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

160 mm
Rainfall
3.2 m/s
Wind
Light Breeze

December

December is cold with highs of 6°C and lows of 1°C. Significant rainfall (136 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

136 mm
Rainfall
3.3 m/s
Wind
Light Breeze

Nearby Attractions to Moran State Park