CaliforniaReservoir, 2,700 acres, Sonoma County
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444.18ft
Down 0.56 ft this week
Sailing
CheckingReading the forecast
Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: NW wind 4 to 7 kt, gusts to 15 kt, high near 61°F. Tuesday: NW wind 4 to 6 kt, gusts to 16 kt, high near 62°F.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
444.18ft NGVD29
-0.56 ft in 7 days10.76 ft above the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Lake Sonoma was at 444.18 ft on October 26, falling 0.56 ft over the past week. That is well above normal for October: the typical October level is 433.42 ft, so the lake is 10.76 ft above its usual mark.
Background reading: Lake Sonoma on Wikipedia
Set in Sonoma County, California, Lake Sonoma is a 2,700-acre reservoir.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Lk Sonoma Pool, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
It is big enough for a proper sail but small enough that waves rarely get serious. Gusts off the shoreline are usually the bigger story than wave height. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: NW wind 4 to 7 kt, gusts to 15 kt, high near 61°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Lake Sonoma was at 444.18 ft on October 26, falling 0.56 ft over the past week. That is well above normal for October: the typical October level is 433.42 ft, so the lake is 10.76 ft above its usual mark.
Lake Sonoma covers about 2,700 acres (4.2 square miles) of surface water.
If Sonoma is blown out, these are the closest alternatives. Tap through for their conditions.