The lake bed in 3-D: deep basin, drop-offs and shoreline. Shape estimated, not for navigation. Spot 1 (steep ledge) is open for everyone; the other 6 come with LakeScope PRO. Full screen
Lake Sammamish
King County, Washington · 4,900 acres (7.7 sq mi)
52°F water, level steady, calm tomorrow morning.
About Lake Sammamish
Lake Sammamish spreads over 4,900 acres in King County, Washington.
It stretches about 6.8 miles end to end with roughly 18.1 miles of shoreline. At about 30 ft above sea level, it follows the seasons of the region. The deepest water is about 105 ft, with an average depth near 58 ft. West Lake Sammamish is right by the lake.
- Size
- 4,900 acres (7.7 sq mi)
- Deepest
- About 105 ft (average 58 ft)
- Shoreline
- About 18.1 miles
- End to end
- About 6.8 miles
- Elevation
- About 30 ft
- Type
- Natural lake
- County
- King County
The lake from above
Best fishing times
Saturday Good
- 6:30 am – 8:45 amsunrise · wind 3 mph
- 3:15 pm – 5:15 pm bestsunset, moon overhead · wind 5 mph
Sunday Fair
- 4:15 pm – 5:15 pm bestsunset, moon overhead · wind 3 mph
Based on sun and moon times and the wind forecast. A guide, not a promise. The app shows the whole week.
Fish in Lake Sammamish
The fish here: yellow perch, smallmouth bass, largemouth bass and trout. With the surface at 52°F, the notes below say which of them should be biting.
- GoodYellow perch
Schooled near weed edges and soft bottom.
- FairSmallmouth bass
Picking up. Look on rocky points and gravel.
- FairLargemouth bass
Cooling down. Try slow baits on points and deeper channel edges.
- GoodTrout
Good range. Near the surface and along shorelines.
From today's water temperature and the season. A guide, not a promise.
Fishing spots
- 1Steep ledge
A sharp wall beside deep water; fish hang along the edge at the depth they like.
- 2
- 3
- 4
- 5
- 6
- 7
6 more spots with LakeScope PRO: fish, depth band, water temperature, best time and bait for each.
Picked from the shape of the lake bed. A guide, not a promise.
Water temperature
At the surface, seen .
Water level
Steady over 7 days.
Latest reading .
Ice
Open water
Ice thickness is an estimate from air temperature, not a measurement. Check the ice yourself before going on it.
Weather and wind
Sunrise 7:11 am · sunset 4:33 pm · waxing crescent moon (lake time).
Towns and places to stay near Lake Sammamish
- West Lake Sammamishon the shore
- Sammamishon the shore
- City of Sammamishabout 1.6 mi east
- Eastgateabout 1.6 mi southwest
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Questions about Lake Sammamish
What fish are in Lake Sammamish?
Lake Sammamish holds yellow perch, smallmouth bass, largemouth bass and trout. Check the state fish and wildlife agency for stocking and limits.
How deep is Lake Sammamish?
About 105 ft at the deepest point, about 58 ft on average. The 3-D view shows where the deep water is.
How big is Lake Sammamish?
4,900 acres, with about 18.1 miles of shoreline.
What town is near Lake Sammamish?
West Lake Sammamish is on the shore.
What is the water temperature at Lake Sammamish today?
The surface was about 52°F on the latest clear reading. The page updates every day.
Lake Sammamish on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
