Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Scheduled Maintenance Notice
    USGS will be performing maintenance on WDFN webpages beginning Tuesday, May 12.
    If you cannot access the page you are intending or are unexpectedly redirected to a different page, please reach out to wdfn@usgs.gov for assistance.

  • Explore the USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
! This page is undergoing modernization with expected decommissioning as key features are added to the modernized pages.
Learn more about our modernization plans to find out which options will suit you best. Next Generation Monitoring Location Page is available now.
A beta version of the My Favorites page is available in WDFN. Try it out and tell us what you think at wdfn@usgs.gov

USGS 08172000 San Marcos Rv at Luling, TX

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
Funding for this site is provided by the cooperators / programs below:
Click to go to the Corps of Engineers, Fort Worth District web page

Corps of Engineers, Fort Worth District

 Click to go to the Groundwater and Streamflow Information Program (GWSIP) web page

Groundwater and Streamflow Information Program (GWSIP)
 
Rainfall Disclaimer

retransmission, forecasts and summary of this location by the National Weather Service
Retransmission, forecasts and summary by the National Weather Service
This station managed by the San Antonio Field Unit.

Available Parameters Available Period
  
2026-01-25  2026-05-25
1986-10-14  2026-05-25
2007-10-01  2026-05-25







 (7)
 
  -- or --

 

 
Summary of all available data for this site
Instantaneous-data availability statement

Precipitation, total, inches
Most recent instantaneous value: 0.00 05-25-2026   16:45 CDT
Graph of Precipitation, total, inches

Add up to 2 more sites and replot for "Precipitation, total, inches"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |


Discharge, cubic feet per second
Most recent instantaneous value: 93.4 05-25-2026   16:45 CDT
Graph of Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |

Daily discharge, cubic feet per second -- statistics for May 25 based on 42 water years of record more
Min
(1996)		 Most Recent
Instantaneous
Value May 25		 25th
percen-
tile		 Median 75th
percen-
tile		 Mean Max
(2015)
72.0 93.4 139 241 468 794 18400

Gage height, feet
Most recent instantaneous value: 3.74 05-25-2026   16:45 CDT
Graph of Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"

?
 
Note



Create presentation-quality / stand-alone graph.   Subscribe to
?
WaterAlert      

See this graph on the Monitoring Location Pages

Share this graph |