Lake Levels DailyLake Levels Daily

Lake Marion Water Level Today

Daily level, distance to full pool and history for Lake Marion, on the Santee River in South Carolina.

Updated · Source: USGS 02171000 Provisional

Water level Provisional

74.29ft

msl · 12:45 AM EST, Nov 9, 2026

  • 2.51 ftbelow full pool (76.8 ft)
  • +0.05 ftin 24 h+0.07 ft in 7 days+1.54 ft in 30 days
747678807476788074767880
  • Full pool
  • 1 yr ago

Is Lake Marion full?

No. Lake Marion is 2.51 ft below full pool (76.8 ft). It is 0.89 ft lower than a year ago (75.18 ft on Nov 9, 2025).

Lake Marion level history

Full pool 76.8 ft
View data table
DateLevel (ft)
Nov 9, 202674.29
Nov 8, 202674.26
Nov 7, 202674.25
Nov 6, 202674.25
Nov 5, 202674.24
Nov 4, 202674.23
Nov 3, 202674.22
Nov 2, 202674.22
Nov 1, 202674.21
Oct 31, 202674.21
Oct 30, 202674.20
Oct 29, 202674.19
Oct 28, 202674.17
Oct 27, 202674.17
Oct 26, 202674.16
Oct 25, 202674.14
Oct 24, 202674.11
Oct 23, 202674.09
Oct 22, 202674.09
Oct 21, 202674.05
Oct 20, 202673.99
Oct 19, 202673.91
Oct 18, 202673.78
Oct 17, 202673.68
Oct 16, 202673.47
Oct 15, 202673.26
Oct 14, 202673.10
Oct 13, 202672.95
Oct 12, 202672.85
Oct 11, 202672.89
Oct 10, 202672.75
  • Lake Marion level
  • Full pool 76.8 ft
  • Above full pool
Source: USGS · Daily averages since 2007

Lake Marion on Nov 9 in past years

Lake Marion water level on Nov 9 in past years
YearLevel (ft)vs todayvs full pool
2026today74.29—−2.51 ft
202575.18+0.89−1.62 ft
202475.37+1.08−1.43 ft
202373.93−0.36−2.87 ft
202274.43+0.14−2.37 ft
202174.65+0.36−2.15 ft
202074.44+0.15−2.36 ft
201973.69−0.60−3.11 ft
201875.52+1.23−1.28 ft
201774.68+0.39−2.12 ft
201674.38+0.09−2.42 ft

Today’s level is the lowest for this date since 2023.

Lake facts

Full pool (conservation pool)
76.8 ft msl
Highest since 2007
76.66 ftJan 20, 2019
Lowest since 2007
66.77 ftDec 25, 2007
Data since
Oct 1, 2007
Dam
Santee Damcompleted 1942
River
Santee River
Owned by
Santee Cooper (South Carolina Public Service Authority)
Dam location
Berkeley County
Gauge location
33.4500, −80.1639

Dam, river and owner from the National Inventory of Dams (USACE). Records cover Oct 1, 2007 to today (daily averages).

Saluda-Santee chain

UpstreamSaluda, Congaree and Santee riversDownstream
  1. Lake Greenwood438.56 ft −1.44 ft vs full pool
  2. Lake Murray354.02 ft −5.98 ft vs full pool
  3. Lake Marion74.29 ft −2.51 ft vs full poolYou are here
  4. Lake Moultrie74.14 ft −2.66 ft vs full pool

The Saluda River joins the Broad to form the Congaree, which flows into Lake Marion. Lake Moultrie is fed from Lake Marion through the Diversion Canal.

Weather on the lake

  1. Tonight53°FLowSW 7 mphClear
  2. Monday74°FHighLow 52°FW 0–6 mphSunny
  3. Tuesday74°FHighLow 56°FSW 2 mphMostly Sunny
  4. Wednesday74°FHighLow 57°FW 2 mphMostly Sunny
  5. Thursday73°FHighLow 52°FSW 5–13 mphMostly Sunny
  6. Friday60°FHighLow 43°FW 9–14 mphMostly Sunny
  7. Saturday56°FHighLow 41°FNW 6–9 mphSunny

Forecast: National Weather Service for the dam area (33.45, −80.16). Wind speeds are forecasts, not measurements.

Nearby lakes

Quick answers

What is the full pool level of Lake Marion?
76.8 ft above mean sea level, the top of its conservation pool. Above it, water is released or flows over the spillway of Santee Dam.
How much does Lake Marion need to be full?
Lake Marion needs 2.51 ft more water to reach full pool (76.8 ft), as of Nov 9, 2026.
Is Lake Marion rising or falling?
It is rising: +0.07 ft in the last 7 days and +0.05 ft in 24 hours, to 74.29 ft on 12:45 AM EST, Nov 9, 2026 (US Geological Survey).
What is the highest level in our data?
Lake Marion reached 76.66 ft on Jan 20, 2019. The lowest was 66.77 ft on Dec 25, 2007 (USGS data since 2007; older records are not in this data set).
How much has Lake Marion changed in the last year?
In the last 12 months it ranged from 72.72 ft (Oct 9, 2026) to 75.84 ft (Feb 22, 2026), a swing of 3.12 ft.
How often is this page updated?
This page is updated several times a day with the latest reading from US Geological Survey. The last reading is from 12:45 AM EST, Nov 9, 2026.

Where this data comes from

Reservoir gauge 02171000 of the US Geological Survey (waterdata.usgs.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.