Lake Sonoma Water Level Today

Lake Sonoma is at 444.4 ft as of 9:00 p.m. PT, Oct 23, according to the U.S. Army Corps of Engineers.

444.4 ft

Elevation above sea level

6.7 ft

Below full pool of 451.1 ft

Today, 444.4 ftFull pool, 451.1 ftNormal, 435.2 ft

Last 24 hours

not reported

Last 7 days

−0.52 ft

Last 30 days

−2.61 ft

Compared with normal

9.1 ft above

Updated 9:00 p.m. PT, Oct 23. Source: U.S. Army Corps of Engineers. Normal is the median level for Oct 23 from 2006 to 2026. Elevations are in feet above NGVD29.

Lake Sonoma level history

30 days1 year10 years

Last 30 daysFull pool, 451.1 ft

Last 30 daysFull pool

This yearSame dates last yearFull pool, 451.1 ft

This yearSame dates last yearFull pool

One reading a weekFull pool, 451.1 ft

One reading a weekFull pool

Elevation in feet, one reading per day (one a week over 10 years). Source: U.S. Army Corps of Engineers.

Common questions

Is Lake Sonoma full?

No. It is 6.7 ft below its full pool elevation of 451.1 ft.

What is the lowest Lake Sonoma has been?

376.3 ft, in December 2022, since the lake first filled in March 1992.

What is the highest Lake Sonoma has been?

483.6 ft, in February 1998, since the lake first filled in March 1992.

How does today compare with a normal year?

It is 9.1 ft above the median level for Oct 23 across the stored record.

Is Lake Sonoma rising or falling?

Falling: it is down 0.52 ft over the last 7 days.

Records

All-time high	483.6 ft	Feb 1998
All-time low	376.3 ft	Dec 2022
This year's high	464.4 ft	Jan 2026
This year's low	444.4 ft	Oct 2026

Since the lake first filled, in March 1992. Source: U.S. Army Corps of Engineers.

Flows and water temperature

Inflow	74 cfs
Release from Warm Springs Dam	105 cfs

Latest readings. Source: U.S. Army Corps of Engineers.

Lake facts

Operator	U.S. Army Corps of Engineers, San Francisco District
Dam	Warm Springs Dam
Full pool	451.1 ft
Normal storage	245,000 acre-ft
Surface area	2,600 acres
County	Sonoma

Full pool: U.S. Army Corps of Engineers. Dam facts: U.S. Army Corps of Engineers, National Inventory of Dams.

Other lakes near Lake Sonoma

All California lakes

Lake	Percent full	Level	Change, 7 days	Updated
Lake Mendocino	not reported	726.8 ft	−1.75 ft	9:00 p.m. PT, Oct 23
Lake Berryessa	not reported	428.1 ft	−0.35 ft	Oct 11
Folsom Lake	39.7%	401.0 ft	−2.24 ft	Oct 22
Lake Oroville	not reported	737.9 ft	−3.74 ft	9:00 p.m. PT, Oct 23
Lake Shasta	51.2%	975.3 ft	−2.29 ft	Oct 22
Trinity Lake	67.2%	2,314.9 ft	−0.71 ft	Oct 22

Lake Mendocino726.8 ft Lake Berryessa428.1 ft Folsom Lake39.7% full Lake Oroville737.9 ft Lake Shasta51.2% full Trinity Lake67.2% full

All California lakes

LakeLevelToday is not an official warning source. For flood watches and warnings near Lake Sonoma, check the National Weather Service.