Can you swim here today?
Martindale River Access
Martindale, Texas · Park
Use caution — an official advisory is in effect
Use cautionAs of August 21, 2026, USGS gauge 08171400, 0.4 miles away, reports a streamflow of 107 ft³/s near Martindale River Access but no water-temperature reading.
Use caution — an official advisory is in effect: live streamflow is available but no water-temperature sensor is nearby.
- Live streamflow is available but no water-temperature sensor is nearby. — USGS gauge 08171400, as of Aug 21, 12:45 PM gauge-local time
- A Heat Advisory is in effect for Llano; Burnet; Williamson; Hays; Travis; Bastrop; Lee; Bexar; Comal; Guadalupe; Caldwell; Fayette; Atascosa and other areas. — NWS Austin/San Antonio TX
- Flow is within the normal range (25th–75th percentile) for Aug 21 (median 153 ft³/s over 15 years). — USGS daily streamflow statistics, as of Aug 21, 12:45 PM gauge-local time
- No official beach advisory posted (Texas Beach Watch (Texas GLO) checked).
Flow is normal for this date — within the normal range (25th–75th percentile) for Aug 21 (median 153 ft³/s over 15 years).
Official advisories
Checked against Texas Beach Watch (Texas GLO) — no advisory posted.
Live, provisional data from USGS gauge San Marcos Rv nr Martindale, TX (0.4 mi away), as of Aug 21, 12:45 PM gauge-local time.
Before you get in
- Never swim alone — and keep weaker swimmers within arm's reach.
- Scout depth and entry/exit points before you get in.
- Read the current: avoid fast, rising, or murky water.
- Check the forecast — get out well before storms or lightning.
- Obey posted signs, flags, and lifeguard guidance.
Read next
Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.