Water Temperature of Rollover Pass in Port Bolivar, TX
Current Water Temperature
Measurement Time: Wednesday, May 20, 2026, 10:06 AM CDT
Today's Tides
Low: May 20, 4:38 AM, -0.1 ft
High: May 20, 4:28 PM, 1.8 ft
Temperature Locations
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Local Points of Interest
Rollover Bay; East Bay; Trinity Bay; Gulf of MexicoStation Name: Rollover Pass
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 3 feet
Sensor Depth: 0 feet
Nearest Address:
1682 Hamilton Ave
Port Bolivar, TX 77617
Galveston County
GPS Coordinates: 29.515, -94.513
Nearby Water Temperatures
Galveston Bay, High Island, TX (9.2 mi)Bolivar Roads, Galveston, TX (16.8 mi)
Trinity Bay, Anahuac, TX (17.2 mi)
Galveston Bay, Galveston, TX (20.2 mi)
Port of Galveston, Galveston, TX (22 mi)
Trinity Bay, Baytown, TX (23.1 mi)
Old River, Wallisville, TX (24.3 mi)
Trinity River, Wallisville, TX (24.4 mi)
Galveston Bay, San Leon, TX (24.5 mi)
Lake Charlotte, Wallisville, TX (27.2 mi)
Galveston Bay, Galveston, TX (27.4 mi)
Old River Lake, Cove, TX (27.8 mi)
San Jacinto River, La Porte, TX (30.6 mi)
Old River Cutoff, Moss Bluff, TX (30.8 mi)
Trinity River, Liberty, TX (33.4 mi)
Weather for Port Bolivar, Texas
Current Weather

Five Day Weather Forecast

Wed
H: 80°F
L: 78°F

Thu
H: 80°F
L: 78°F

Fri
H: 80°F
L: 78°F

Sat
H: 81°F
L: 78°F

Sun
H: 81°F
L: 79°F
Air Quality
Nitrogen Dioxide: 1.25 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 65 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:07 PM
Daylight: 13 hrs 44 mins
Moon Transit: 5:23 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%
Best Times for Fishing or Hunting
Major Periods
3:45 AM - 6:15 AM4:53 PM - 7:23 PM
Minor Periods
9:37 AM - 11:07 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Flood Advisory issued May 20 at 7:24AM CDT until May 20 at 9:15AM CDT by NWS Houston/Galveston TX
Effective: Wed May 20, 2026, 7:24 AM
Expires: Wed May 20, 2026, 9:15 AM
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast Texas, including the following counties, Brazoria, Galveston and Harris. * WHEN...Until 915 AM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 724 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Overflowing poor drainage areas will cause minor flooding in the advisory area. Between 1 and 2.5 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... League City, Texas City, southern Friendswood, Alvin, Dickinson, La Marque, Santa Fe, Webster, Hitchcock, Kemah, Hillcrest, Liverpool, Bacliff, San Leon and Chocolate Bayou. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Flood Advisory issued May 20 at 6:33AM CDT until May 20 at 8:30AM CDT by NWS Houston/Galveston TX
Effective: Wed May 20, 2026, 6:33 AM
Expires: Wed May 20, 2026, 8:30 AM
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southeast Texas, including the following counties, Brazoria and Galveston. * WHEN...Until 830 AM CDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 633 AM CDT, Doppler radar indicated heavy rain due to thunderstorms. Overflowing poor drainage areas will cause minor flooding in the advisory area. Between 1.5 and 3 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Galveston Island West End, northern Lake Jackson, Angleton, Richwood, Danbury, eastern Bailey's Prairie and San Luis Pass. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads.
Rip Current Statement issued May 20 at 1:36AM CDT until May 20 at 10:00PM CDT by NWS Houston/Galveston TX
Effective: Wed May 20, 2026, 1:36 AM
Expires: Wed May 20, 2026, 5:45 PM
* WHAT...Dangerous rip currents. * WHERE...Gulf-facing beaches, including the Matagorda Peninsula, Brazoria County beaches, Galveston Island and the Bolivar Peninsula. * WHEN...Through this evening. * IMPACTS...Rip currents can sweep even the best swimmers away from shore into deeper water.
Swim near a lifeguard and away from rocks, jetties, and piers. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.14 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 57.16 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:07 PM
Daylight: 13 hrs 44 mins
Moon Transit: 5:23 PM
Moonset: 12:44 AM
Moon Phase: Waxing Crescent
Moon Illumination: 14.4%
Best Times for Fishing or Hunting
Major Periods
3:45 AM - 6:15 AM4:53 PM - 7:23 PM
Minor Periods
9:37 AM - 11:07 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.16 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 53.64 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:08 PM
Daylight: 13 hrs 45 mins
Moon Transit: 6:19 PM
Moonset: 12:34 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
4:45 AM - 7:15 AM5:49 PM - 8:19 PM
Minor Periods
10:46 AM - 12:16 AM12:04 AM - 1:34 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 2.63 μg/m3
Sulphur Dioxide: 1.16 μg/m3
Ozone: 54.64 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:08 PM
Daylight: 13 hrs 46 mins
Moon Transit: 7:10 PM
Moonset: 1:15 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%
Best Times for Fishing or Hunting
Major Periods
5:38 AM - 8:08 AM6:40 PM - 9:10 PM
Minor Periods
11:53 AM - 1:23 PM12:45 AM - 2:15 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.1 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 48.54 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:09 PM
Daylight: 13 hrs 47 mins
Moon Transit: 7:56 PM
Moonset: 1:50 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%
Best Times for Fishing or Hunting
Major Periods
6:26 AM - 8:56 AM7:26 PM - 9:56 PM
Minor Periods
12:54 AM - 2:24 PM1:20 AM - 2:50 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3
Astronomical
Sun Transit: 1:14 PM
Sunset: 8:09 PM
Daylight: 13 hrs 48 mins
Moon Transit: 8:39 PM
Moonset: 2:21 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%
Best Times for Fishing or Hunting
Major Periods
7:11 AM - 9:41 AM8:09 PM - 10:39 PM
Minor Periods
1:54 PM - 3:24 PM1:51 AM - 3:21 AM
Action Rating: 3 out of 5
