Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide : 10:04 pm (-0.5 ft)
Next high tide : in 10h 06m at 1:27 pm (1.7 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Dec 2099

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:481.711:58-0.56:565:20Waning Gibbous1Tue
2Wed1:301.712:53-0.46:575:20Waning Gibbous2Wed
3Thu1:571.61:52-0.26:575:20Third Quarter3Thu
4Fri1:541.42:540.06:585:20Third Quarter4Fri
5Sat12:521.211:571.13:590.26:595:20Third Quarter5Sat
6Sun11:320.811:411.16:190.55:100.56:595:20Third Quarter6Sun
7Mon1:531.06:330.16:280.87:005:20Waning Crescent7Mon
8Tue3:491.27:01-0.47:521.17:015:20Waning Crescent8Tue
9Wed5:261.47:36-0.79:181.37:025:20Waning Crescent9Wed
10Thu6:591.58:15-1.07:025:21New Moon10Thu
11Fri8:431.58:58-1.17:035:21New Moon11Fri
12Sat10:441.59:43-1.07:045:21New Moon12Sat
13Sun10:32-0.97:045:21Waxing Crescent13Sun
14Mon12:301.411:23-0.77:055:22Waxing Crescent14Mon
15Tue1:041.312:17-0.67:065:22Waxing Crescent15Tue
16Wed1:141.21:11-0.47:065:23Waxing Crescent16Wed
17Thu1:091.12:04-0.27:075:23First Quarter17Thu
18Fri12:430.911:560.82:540.07:075:23First Quarter18Fri
19Sat9:480.511:170.86:150.43:440.37:085:24First Quarter19Sat
20Sun1:040.66:120.24:420.57:085:24First Quarter20Sun
21Mon3:510.86:20-0.26:190.77:095:25Waxing Gibbous21Mon
22Tue5:021.06:36-0.48:220.97:095:25Waxing Gibbous22Tue
23Wed5:561.16:59-0.77:105:26Waxing Gibbous23Wed
24Thu6:541.27:28-0.97:105:26Waxing Gibbous24Thu
25Fri8:031.28:03-1.07:115:27Full Moon25Fri
26Sat9:251.28:42-1.07:115:28Full Moon26Sat
27Sun10:501.29:26-1.17:115:28Full Moon27Sun
28Mon10:14-1.07:125:29Full Moon28Mon
29Tue12:001.211:04-1.07:125:29Waning Gibbous29Tue
30Wed12:511.211:55-0.97:125:30Waning Gibbous30Wed
31Thu1:141.011:230.812:45-0.77:135:31Waning Gibbous31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771328)

Common Questions About Port Bolivar, TX Tides

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What time does the tide turn (slack tide) in Port Bolivar, TX today?

Slack tide in Port Bolivar, TX is approximately 5:45 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Port Bolivar, TX?

Port Bolivar, TX is currently in a spring phase. Tonight's moon is 2% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Port Bolivar, TX tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Port Bolivar, TX?

Tide predictions for Port Bolivar, TX come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Port Bolivar, TX?

Tide data for Port Bolivar, TX is sourced from NOAA Station #8771328. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8771328.

What is the moon phase in Port Bolivar, TX tonight?

Tonight the moon over Port Bolivar, TX is New Moon (2% illuminated). This places Port Bolivar, TX in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA