Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide : 2:15 pm (1.0 ft)
Next high tide : in 5h 52m at 10:57 am (1.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:30 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Apr 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:531.43:381.310:020.810:000.46:086:37Full Moon1Fri
2Sat4:571.43:321.310:411.010:260.26:066:38Full Moon2Sat
3Sun7:051.54:181.412:271.37:057:38Full Moon3Sun
4Mon8:241.57:047:39Waning Gibbous4Mon
5Tue1:141.712:26-0.17:037:40Waning Gibbous5Tue
6Wed2:151.81:03-0.27:027:40Waning Gibbous6Wed
7Thu3:101.81:48-0.27:017:41Waning Gibbous7Thu
8Fri4:031.92:41-0.26:597:41Third Quarter8Fri
9Sat4:531.93:46-0.16:587:42Third Quarter9Sat
10Sun5:341.85:010.06:577:42Third Quarter10Sun
11Mon5:481.66:220.19:101.56:567:43Waning Crescent11Mon
12Tue5:011.47:380.28:421.36:557:44Waning Crescent12Tue
13Wed1:281.64:071.38:460.49:071.06:547:44Waning Crescent13Wed
14Thu3:021.63:461.39:460.79:420.66:537:45Waning Crescent14Thu
15Fri4:281.73:431.410:431.010:210.26:527:45New Moon15Fri
16Sat5:531.83:461.511:431.311:00-0.16:517:46New Moon16Sat
17Sun7:231.83:471.612:541.56:507:47New Moon17Sun
18Mon9:151.86:497:47Waxing Crescent18Mon
19Tue11:391.912:21-0.36:477:48Waxing Crescent19Tue
20Wed1:161.91:04-0.26:467:48Waxing Crescent20Wed
21Thu2:221.81:52-0.16:457:49Waxing Crescent21Thu
22Fri3:131.72:460.16:447:50First Quarter22Fri
23Sat3:531.73:510.36:437:50First Quarter23Sat
24Sun4:171.65:060.56:427:51First Quarter24Sun
25Mon4:201.46:240.68:571.26:427:51First Quarter25Mon
26Tue12:361.43:521.47:310.79:041.06:417:52Waxing Gibbous26Tue
27Wed2:011.43:111.38:240.89:130.86:407:53Waxing Gibbous27Wed
28Thu3:201.42:491.49:121.09:260.56:397:53Waxing Gibbous28Thu
29Fri4:351.52:401.410:001.29:460.26:387:54Waxing Gibbous29Fri
30Sat5:491.62:311.511:001.410:100.06:377:55Full Moon30Sat
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 12:36 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 15% 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 Waxing Crescent (15% 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