Sammamish Lake level history
In the 366 days we have on record (Nov 4, 2025 to Nov 4, 2026), the highest level was 29.00 ft on Dec 18, 2025 and the lowest was 25.68 ft on Aug 27, 2026.
Sammamish Lake Water Level Today
Current elevation 26.00 ft
No change in 24 h▲ 0.02 ft in 7 days
As of Nov 4, 2026, 3:15 AM PST, Sammamish Lake is at 26.00 ft. The level has risen 0.02 ft over the last 7 days.
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Sammamish Lake level history
Level
| Date | Elevation | Daily change | Storage |
|---|---|---|---|
| Nov 4, 2026 | 26.00 ft | 0.00 ft | — |
| Nov 3, 2026 | 26.00 ft | 0.00 ft | — |
| Nov 2, 2026 | 26.00 ft | −0.01 ft | — |
| Nov 1, 2026 | 26.01 ft | 0.00 ft | — |
| Oct 31, 2026 | 26.01 ft | +0.02 ft | — |
| Oct 30, 2026 | 25.99 ft | +0.01 ft | — |
| Oct 29, 2026 | 25.98 ft | 0.00 ft | — |
| Oct 28, 2026 | 25.98 ft | +0.01 ft | — |
| Oct 27, 2026 | 25.97 ft | +0.01 ft | — |
| Oct 26, 2026 | 25.96 ft | +0.01 ft | — |
| Oct 25, 2026 | 25.95 ft | +0.01 ft | — |
| Oct 24, 2026 | 25.94 ft | 0.00 ft | — |
| Oct 23, 2026 | 25.94 ft | −0.01 ft | — |
| Oct 22, 2026 | 25.95 ft | 0.00 ft | — |
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Lakes near Sammamish Lake
South Fork Tolt Reservoir 21 mi · 1,717.13 ft Lake Tapps 23 mi · 538.59 ft Howard 26 mi · 1,111.09 ft Mud Mountain Lake 31 mi · 915.69 ft Lake Shannon 69 mi · 406.05 ft Wynoochee Lake 71 mi · 730.06 ft
All Washington lake levels FAQ
What is the Sammamish Lake water level today?
26.00 ft as of Nov 4, 2026, 3:15 AM PST, reported by the U.S. Geological Survey.
How often is this page updated?
Every 3 hours. The gauge reports several times a day.
What is the highest and lowest level of Sammamish Lake?
In the period we have (since Nov 4, 2025): 29.00 ft and 25.68 ft.
Data: U.S. Geological Survey, gauge 12122000 (official page). Provisional data, subject to revision. For information only. Not for navigation or flood safety decisions. Check the official source. LakeLevelHQ is not affiliated with any government agency.