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Lake Sonoma Water Level Today

Also known as Sonoma Lake

Daily level, distance to full pool and history for Lake Sonoma, on the Dry Creek (Russian River) in California.

Updated · Source: CDEC station WRS Provisional

Water level Provisional

442.90ft

msl · 9:00 PM PST, Nov 8, 2026

  • 8.20 ftbelow full pool (451.1 ft)
  • −0.09 ftin 24 h−0.65 ft in 7 days−2.71 ft in 30 days
440445450455440445450455440445450455
  • Full pool
  • 1 yr ago

Is Lake Sonoma full?

No. Lake Sonoma is 8.20 ft below full pool (451.1 ft). It is 1.04 ft higher than a year ago (441.86 ft on Nov 8, 2025).

Lake Sonoma level history

View data table
DateLevel (ft)
Nov 8, 2026442.90
Nov 7, 2026443.03
Nov 6, 2026443.13
Nov 5, 2026443.23
Nov 4, 2026443.32
Nov 3, 2026443.40
Nov 2, 2026443.48
Nov 1, 2026443.59
Oct 31, 2026443.69
Oct 30, 2026443.79
Oct 29, 2026443.88
Oct 28, 2026443.97
Oct 27, 2026444.05
Oct 26, 2026444.14
Oct 25, 2026444.22
Oct 24, 2026444.31
Oct 23, 2026444.40
Oct 22, 2026444.48
Oct 21, 2026444.56
Oct 20, 2026444.64
Oct 19, 2026444.72
Oct 18, 2026444.80
Oct 17, 2026444.90
Oct 16, 2026444.99
Oct 15, 2026445.07
Oct 14, 2026445.16
Oct 13, 2026445.26
Oct 12, 2026445.34
Oct 11, 2026445.45
Oct 10, 2026445.54
Oct 9, 2026445.61
  • Lake Sonoma level
  • Full pool 451.1 ft
  • Above full pool
Source: CDEC · Daily averages since 1990

Lake Sonoma on Nov 8 in past years

Lake Sonoma water level on Nov 8 in past years
YearLevel (ft)vs todayvs full pool
2026today442.90—−8.20 ft
2025441.86−1.04−9.24 ft
2024442.19−0.71−8.91 ft
2023442.23−0.67−8.87 ft
2022380.64−62.26−70.46 ft
2021392.05−50.85−59.05 ft
2020419.52−23.38−31.58 ft
2019437.31−5.59−13.79 ft
2018427.50−15.40−23.60 ft
2017437.10−5.80−14.00 ft
2016437.72−5.18−13.38 ft

Today’s level is the highest for Nov 8 in records going back to 1990.

Lake facts

Full pool (conservation pool)
451.1 ft msl
Highest since 1990
483.63 ftFeb 8, 1998
Lowest since 1990
376.33 ftDec 9, 2022
Data since
Jan 1, 1990
Dam
Warm Springs Damcompleted 1983
River
Dry Creek (Russian River)
Operated by
US Army Corps of Engineers, San Francisco District
Dam location
Sonoma County
Gauge location
38.7230, −123.0100

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Jan 1, 1990 to today (daily averages).

Weather on the lake

  1. Tonight52°FLowNW 6 mphMostly Cloudy
  2. Monday73°FHighLow 50°FNW 1–5 mphMostly Sunny
  3. Tuesday78°FHighLow 50°FNW 1–5 mphSunny
  4. Wednesday77°FHighLow 51°FESE 3 mphSunny
  5. Thursday70°FHighLow 50°FESE 5 mphMostly Sunny
  6. Friday70°FHighLow 49°FSW 5 mphSlight Chance Light Rain
  7. Saturday66°FHighLow 49°FS 6 mphLight Rain Likely

Forecast: National Weather Service for the dam area (38.72, −123.01). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Lake Sonoma?
451.1 ft above mean sea level, the top of its conservation pool. Above it, the extra water is flood storage that is later released downstream through Warm Springs Dam.
How much does Lake Sonoma need to be full?
Lake Sonoma needs 8.20 ft more water to reach full pool (451.1 ft), as of Nov 8, 2026.
Is Lake Sonoma rising or falling?
It is falling: −0.65 ft in the last 7 days and −0.09 ft in 24 hours, to 442.90 ft on 9:00 PM PST, Nov 8, 2026 (California Data Exchange Center).
When was Lake Sonoma last full?
It was last at or above full pool (451.1 ft) on Aug 8, 2026. On Nov 8, 2026 it was 8.20 ft below.
What is the highest level in our data?
Lake Sonoma reached 483.63 ft on Feb 8, 1998. The lowest was 376.33 ft on Dec 9, 2022 (CDEC data since 1990; older records are not in this data set).
How much has Lake Sonoma changed in the last year?
In the last 12 months it ranged from 440.61 ft (Dec 18, 2025) to 464.39 ft (Jan 6, 2026), a swing of 23.78 ft.
How often is this page updated?
This page is updated several times a day with the latest reading from California Data Exchange Center. The last reading is from 9:00 PM PST, Nov 8, 2026.

Where this data comes from

Hourly reservoir elevation from the California Data Exchange Center of the California Department of Water Resources (station WRS, cdec.water.ca.gov). Recent readings are provisional and may be revised. Weather from the National Weather Service. Dam details from the National Inventory of Dams.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.