Can you swim here today?
Glen Martin Creek
California · River
Live flow only — judge the water in person
As of August 21, 2026, USGS gauge 11051499, 6.4 miles away, reports a streamflow of 21 ft³/s near Glen Martin Creek but no water-temperature reading.
There's a live streamflow reading but no nearby water-temperature sensor. Check the numbers below, watch for fast or rising water, and never swim alone.
Streamflow
21 ft³/s
discharge
Gage height
6.78 ft
water level
Live, provisional data from USGS gauge SANTA ANA R NR MENTONE (RIVER ONLY) CA (6.4 mi away), as of Aug 21, 9:45 AM 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.