El Capitan Reservoir near Lakeside water level

Name: El Capitan Reservoir near Lakeside water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

Reservoir, El Capitan Reservoir, California, United States

Directions

Latest reading

Surface elevation

640.31ft Steady over the last 24 hours

Measured Oct 21, 2026, 12:45 AM PDT (35 min ago)

Water stored: 9,100 acre‑ft

History

7 days

Surface elevation

What this means

The latest lake level at El Capitan Reservoir near Lakeside is 640.31 ft. The agency publishes no normal range or warning level for this reservoir yet, so there is nothing to judge the number against.

The level has held steady over the past 24 hours. Over the past 30 days it has moved between 640.30 ft and 640.43 ft.

Over the past seven days the change adds up to −0.08 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Swimming and boating at El Capitan Reservoir near Lakeside

Without a published normal range, the trend is the most useful thing here: a steady lake means few changes at the shore.

If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.

Weather at the gauge

Rain in the last 3 days: 0.06 in.

20 Tue 80° 59° – Wind 13 mph

21 Wed 78° 58° 0.02 in Wind 16 mph

22 Thu 66° 59° 1.00 in, 77% Wind 13 mph

23 Fri 69° 56° 0.00 in, 23% Wind 10 mph

24 Sat 76° 56° – Wind 10 mph

25 Sun 83° 61° – Wind 10 mph

26 Mon 87° 65° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 06:57 AM Sunset 06:08 PM Daylight 11 hr, 12 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Los Coches Creek near LakesideRiver gauge, Los Coches Creek	0.3 cfs	Normal	+0.2 cfs	6.2 mi
Sweetwater River near DescansoRiver gauge, Sweetwater River	0.0 cfs	Normal	±0	11 mi
San Diego R A Mast Road near SanteeRiver gauge, San Diego R A Mast Road	6.2 cfs	Very high	−0.3 cfs	13 mi
Santa Maria Creek near RamonaRiver gauge, Santa Maria Creek	0.0 cfs	Normal	±0	14 mi
Santa Ysabel Creek near RamonaRiver gauge, Santa Ysabel Creek	0.0 cfs	Normal	±0	16 mi
Jamul Creek near JamulRiver gauge, Jamul Creek	0.2 cfs	Normal	−0.2 cfs	17 mi
Guejito Creek near San PasqualRiver gauge, Guejito Creek	0.0 cfs	Normal	±0	18 mi
Los Penasquitos Creek near PowayRiver gauge, Los Penasquitos Creek	3.8 cfs	High	+0.3 cfs	19 mi

Questions and answers

Is El Capitan Reservoir near Lakeside really 640.31 ft deep?

No. 640.31 ft is the height of the water surface above sea level (or the agency's vertical datum), not the depth of the water.

What is the water level of El Capitan Reservoir near Lakeside today?

On Oct 21, 2026, 12:45 AM PDT, the surface elevation was 640.31 ft. Steady over the last 24 hours.

Is El Capitan Reservoir near Lakeside rising or falling?

Steady over the last 24 hours. Down 0.08 ft over the last 7 days.

Is the level of El Capitan Reservoir near Lakeside normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:11020600 (Agency page)
Coordinates: 32.88227, -116.80918 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Surface elevation	640.31 ft	2026-10-21 07:45	Provisional
Water stored	9,100 acre‑ft	2026-10-21 07:45	Provisional

Download

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How to cite

U.S. Geological Survey: El Capitan Reservoir near Lakeside (usgs:11020600). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/el-capitan-reservoir-near-lakeside

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer