Water Temperature of Rollover Pass in Port Bolivar, TX
Current Water Temperature
90.1°F
Measurement Time: Sunday, August 17, 2025, 1:06 PM CDT
Today's Tides
High: August 17, 7:58 AM, 1.66 ft
Low: August 17, 9:20 PM, -0.29 ft
Temperature Locations
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Local Points of Interest
Rollover Bay; East Bay; Trinity Bay; Gulf of MexicoSponsored Content
Rollover Pass
Station Name: Rollover Pass
Data Source: NOAA Tides and Currents
Elevation Above Sea Level: 3 feet / 1 meters
Sensor Depth: 0.1 feet / 0.0 meters
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 (22.0 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
91.9°F

Conditions: Partly Cloudy
Humidity: 60%
Feels Like: 119.1°F
Wind: SSW 2.7 mph
Wind Gusts: 3.7 mph
Humidity: 60%
Feels Like: 119.1°F
Wind: SSW 2.7 mph
Wind Gusts: 3.7 mph
Pressure: 30.03 in
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 10.8
Precipitation: 0 in
Cloud Cover: 25%
Visibility: 9 mi
UV Index: 10.8
Five Day Weather Forecast

Sun
H: 89°F
L: 84°F

Mon
H: 92°F
L: 77°F

Tue
H: 92°F
L: 75°F

Wed
H: 87°F
L: 82°F

Thu
H: 87°F
L: 81°F
Air Quality
AQI:
3 - Unhealthy for Sensitive Groups
PM2.5:
11.66 μg/m3
PM10:
18.69 μg/m3
Carbon Monoxide: 192.4 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 80 μg/m3
Nitrogen Dioxide: 1.11 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 80 μg/m3
Astronomical
Sunrise: 6:48 AM
Sun Transit: 1:22 PM
Sunset: 7:56 PM
Daylight: 13 hrs 8 mins
Sun Transit: 1:22 PM
Sunset: 7:56 PM
Daylight: 13 hrs 8 mins
Moonrise: 12:51 AM
Moon Transit: 8:14 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 28.4%
Moon Transit: 8:14 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
7:44 AM - 10:14 AM7:37 PM - 10:07 PM
Minor Periods
3:12 PM - 4:42 PM12:21 AM - 1:51 AM
Action Rating: 3 out of 5
Sunday, August 17, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 86.1°F
Average Humidity: 84%
Average Temperature: 86.1°F
Average Humidity: 84%
Chance of Rain: 63%
Wind: 10.1 mph
UV Index: 2.6
Wind: 10.1 mph
UV Index: 2.6
Air Quality
AQI:
1 - Good
PM2.5:
11.61 μg/m3
PM10:
18.43 μg/m3
Carbon Monoxide: 193.51 μg/m3
Nitrogen Dioxide: 6.17 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 56.88 μg/m3
Nitrogen Dioxide: 6.17 μg/m3
Sulphur Dioxide: 1.8 μg/m3
Ozone: 56.88 μg/m3
Astronomical
Sunrise: 6:48 AM
Sun Transit: 1:22 PM
Sunset: 7:56 PM
Daylight: 13 hrs 8 mins
Sun Transit: 1:22 PM
Sunset: 7:56 PM
Daylight: 13 hrs 8 mins
Moonrise: 12:51 AM
Moon Transit: 8:14 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 28.4%
Moon Transit: 8:14 AM
Moonset: 3:42 PM
Moon Phase: Last Quarter
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
7:44 AM - 10:14 AM7:37 PM - 10:07 PM
Minor Periods
3:12 PM - 4:42 PM12:21 AM - 1:51 AM
Action Rating: 3 out of 5
Monday, August 18, 2025
Weather Forecast
Conditions: Heavy rain
Average Temperature: 82.7°F
Average Humidity: 87%
Average Temperature: 82.7°F
Average Humidity: 87%
Chance of Rain: 87%
Wind: 13.4 mph
UV Index: 2.5
Wind: 13.4 mph
UV Index: 2.5
Air Quality
AQI:
1 - Good
PM2.5:
13.67 μg/m3
PM10:
18.14 μg/m3
Carbon Monoxide: 209.05 μg/m3
Nitrogen Dioxide: 11.91 μg/m3
Sulphur Dioxide: 4.68 μg/m3
Ozone: 72.08 μg/m3
Nitrogen Dioxide: 11.91 μg/m3
Sulphur Dioxide: 4.68 μg/m3
Ozone: 72.08 μg/m3
Astronomical
Sunrise: 6:48 AM
Sun Transit: 1:21 PM
Sunset: 7:55 PM
Daylight: 13 hrs 7 mins
Sun Transit: 1:21 PM
Sunset: 7:55 PM
Daylight: 13 hrs 7 mins
Moonrise: 1:47 AM
Moon Transit: 9:16 AM
Moonset: 4:46 PM
Moon Phase: Last Quarter
Moon Illumination: 18.9%
Moon Transit: 9:16 AM
Moonset: 4:46 PM
Moon Phase: Last Quarter
Moon Illumination: 18.9%
Best Times for Fishing or Hunting
Major Periods
8:46 AM - 11:16 AM8:39 PM - 11:09 PM
Minor Periods
4:16 PM - 5:46 PM1:17 AM - 2:47 AM
Action Rating: 2 out of 5
Tuesday, August 19, 2025
Weather Forecast
Conditions: Patchy rain nearby
Average Temperature: 83.1°F
Average Humidity: 76%
Average Temperature: 83.1°F
Average Humidity: 76%
Chance of Rain: 68%
Wind: 11 mph
UV Index: 2.6
Wind: 11 mph
UV Index: 2.6
Air Quality
AQI:
2 - Moderate
PM2.5:
25.66 μg/m3
PM10:
27.72 μg/m3
Carbon Monoxide: 288.67 μg/m3
Nitrogen Dioxide: 12 μg/m3
Sulphur Dioxide: 4.66 μg/m3
Ozone: 110.56 μg/m3
Nitrogen Dioxide: 12 μg/m3
Sulphur Dioxide: 4.66 μg/m3
Ozone: 110.56 μg/m3
Astronomical
Sunrise: 6:49 AM
Sun Transit: 1:21 PM
Sunset: 7:54 PM
Daylight: 13 hrs 5 mins
Sun Transit: 1:21 PM
Sunset: 7:54 PM
Daylight: 13 hrs 5 mins
Moonrise: 2:50 AM
Moon Transit: 10:17 AM
Moonset: 5:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.9%
Moon Transit: 10:17 AM
Moonset: 5:42 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM9:47 AM - 12:17 AM
Minor Periods
5:12 PM - 6:42 PM2:20 AM - 3:50 AM
Action Rating: 2 out of 5
Wednesday, August 20, 2025
Weather Forecast
Conditions: Moderate rain
Average Temperature: 84.9°F
Average Humidity: 76%
Average Temperature: 84.9°F
Average Humidity: 76%
Chance of Rain: 84%
Wind: 13.2 mph
UV Index: 0
Wind: 13.2 mph
UV Index: 0
Air Quality
AQI:
2 - Moderate
PM2.5:
35.06 μg/m3
PM10:
36.74 μg/m3
Carbon Monoxide: 335.44 μg/m3
Nitrogen Dioxide: 9.65 μg/m3
Sulphur Dioxide: 5.99 μg/m3
Ozone: 138.8 μg/m3
Nitrogen Dioxide: 9.65 μg/m3
Sulphur Dioxide: 5.99 μg/m3
Ozone: 138.8 μg/m3
Astronomical
Sunrise: 6:49 AM
Sun Transit: 1:21 PM
Sunset: 7:53 PM
Daylight: 13 hrs 4 mins
Sun Transit: 1:21 PM
Sunset: 7:53 PM
Daylight: 13 hrs 4 mins
Moonrise: 3:56 AM
Moon Transit: 11:16 AM
Moonset: 6:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.9%
Moon Transit: 11:16 AM
Moonset: 6:30 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM10:46 AM - 1:16 PM
Minor Periods
6:00 PM - 7:30 PM3:26 AM - 4:56 AM
Action Rating: 3 out of 5
Thursday, August 21, 2025
Weather Forecast
Conditions: Moderate rain
Average Temperature: 83.9°F
Average Humidity: 71%
Average Temperature: 83.9°F
Average Humidity: 71%
Chance of Rain: 89%
Wind: 10.7 mph
UV Index: 6
Wind: 10.7 mph
UV Index: 6
Air Quality
AQI:
3 - Unhealthy for Sensitive Groups
PM2.5:
53.72 μg/m3
PM10:
55.1 μg/m3
Carbon Monoxide: 446.42 μg/m3
Nitrogen Dioxide: 13.43 μg/m3
Sulphur Dioxide: 3.76 μg/m3
Ozone: 118.23 μg/m3
Nitrogen Dioxide: 13.43 μg/m3
Sulphur Dioxide: 3.76 μg/m3
Ozone: 118.23 μg/m3
Astronomical
Sunrise: 6:50 AM
Sun Transit: 1:21 PM
Sunset: 7:52 PM
Daylight: 13 hrs 2 mins
Sun Transit: 1:21 PM
Sunset: 7:52 PM
Daylight: 13 hrs 2 mins
Moonrise: 5:03 AM
Moon Transit: 12:10 AM
Moonset: 7:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.2%
Moon Transit: 12:10 AM
Moonset: 7:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.2%
Best Times for Fishing or Hunting
Major Periods
12:00 AM - 12:00 AM11:40 AM - 2:10 PM
Minor Periods
6:41 PM - 8:11 PM4:33 AM - 6:03 AM
Action Rating: 3 out of 5
The times presented here are based upon the solunar theory, which is the idea that the movements of
fish and other animals are affected by the location of the sun and moon. The major periods are
believed to be the times of the greatest animal activity and occur when the moon is directly
overhead or underfoot (lunar transits). The minor periods also see increased activity and
occur when the moon is rising or setting. The strongest activity occurs during full or new moons,
and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.
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