Can you swim here today?
Greens Bayou
Texas · Lake
Use caution — an official advisory is in effect
Use cautionAs of August 23, 2026, the water temperature at Greens Bayou is 88°F (31°C), measured by USGS gauge 08077652, 15.5 miles away.
Use caution — an official advisory is in effect: a Heat Advisory is in effect for Houston; Trinity; Madison; Walker; San Jacinto; Polk; Burleson; Brazos; Washington; Grimes; Montgomery and other areas.
- A Heat Advisory is in effect for Houston; Trinity; Madison; Walker; San Jacinto; Polk; Burleson; Brazos; Washington; Grimes; Montgomery and other areas. — NWS Houston/Galveston TX
- Water temperature is 88°F, warm enough that sun and heat are the main concerns. — USGS gauge 08077652, as of Aug 23, 10:30 AM UTC
- Low bacteria level at Galveston Seawall - 61 St. (0.5 mi away). — Texas Beach Watch (Texas GLO), as of August 18, 2026
Official advisories
Low bacteria level at Galveston Seawall - 61 St., 0.5 mi — sampled August 18, 2026 (Texas Beach Watch (Texas GLO))
Live, provisional data from USGS gauge Galveston Bay site EAGLEP nr Bacliff, TX (15.5 mi away), as of Aug 23, 10:30 AM UTC.
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.