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San Mateo C A San Mateo Road near San Onofre water level

River gauge, San Mateo C A San Mateo Road, California, United States

Directions

Right now

Latest reading

Water level

6.25ft Steady over the last 24 hours

Flow
0.0 cfs
5 6 8

History

History
6.236.246.256.26ftOct 16Oct 17Oct 18Oct 20Oct 216.236.246.256.26ftOct 16Oct 18Oct 21
Water level

What this means

The San Mateo C A San Mateo Road near San Onofre reads 6.25 ft as of Oct 20, 2026, 10:45 PM PDT. The agency publishes no normal range or warning level for this river yet, so there is nothing to judge the number against.

The level has held steady over the past 24 hours. In the last month it has stayed between 6.23 ft and 6.26 ft.

Over the past seven days the change adds up to −0.01 ft.

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

Floating and fishing near San Mateo C A San Mateo Road near San Onofre

Use the recent trend as your guide, and ask locally which gage height makes for a good float.

Weather at the gauge

The forecast is not available right now.

Sunrise 07:00 AM Sunset 06:11 PM Daylight 11 hr, 11 min Waxing gibbous 75%

Map

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
San Juan Creek at La Novia St Branch at San Juan CapisRiver gauge, San Juan Creek 0.0 cfs Normal ±0 9 mi
Arroyo Trabuco A San Juan CapistranoRiver gauge 1.8 cfs Normal ±0 9 mi
De Luz Creek near De LuzRiver gauge, De Luz Creek 0.0 cfs Normal ±0 12 mi
Santa Margarita R A YsidoraRiver gauge 7.13 ft Below flood stage ±0 13 mi
Fallbrook Creek near FallbrookRiver gauge, Fallbrook Creek 0.2 cfs Normal −0.1 cfs 14 mi
Oneill Lake Outlet Ch near FallbrookRiver gauge, Oneill Lake Outlet Ch 0.0 cfs Low ±0 14 mi
Sandia Creek near FallbrookRiver gauge, Sandia Creek 0.6 cfs Very low +0.1 cfs 17 mi
Santa Margarita R A Fpud Sump near FallbrookRiver gauge, Santa Margarita R A Fpud Sump 7.1 cfs Normal ±0 17 mi

Questions and answers

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of San Mateo C A San Mateo Road near San Onofre today?

On Oct 20, 2026, 10:45 PM PDT, the water level was 6.25 ft. Steady over the last 24 hours.

Is San Mateo C A San Mateo Road near San Onofre rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of San Mateo C A San Mateo Road near San Onofre 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:11046325 (Agency page)
Coordinates
33.41933, -117.53706 (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

ParameterLast valueTime (UTC)Quality
Water level 6.25 ft 2026-10-21 05:45 Provisional
Flow 0.0 cfs 2026-10-21 05:45 Provisional

Download

Embed this gauge

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How to cite

U.S. Geological Survey: San Mateo C A San Mateo Road near San Onofre (usgs:11046325). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/california/san-mateo-c-a-san-mateo-road-near-san-onofre

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.