Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide (tomorrow) : 5:17 am (0.6 ft)
Next high tide (tomorrow) : in 4h 54m at 12:06 am (0.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Aug 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:061.610:45-0.86:398:11Full Moon1Tue
2Wed2:581.611:43-0.66:398:10Full Moon2Wed
3Thu4:321.46:408:10Waning Gibbous3Thu
4Fri9:341.16:101.312:40-0.31:201.06:418:09Waning Gibbous4Fri
5Sat9:041.18:031.11:350.02:330.66:418:08Waning Gibbous5Sat
6Sun8:591.110:291.12:290.43:310.36:428:07Third Quarter6Sun
7Mon9:031.23:270.84:22-0.16:428:06Third Quarter7Mon
8Tue2:111.29:11 AM1.35:011.25:10-0.36:438:06Third Quarter8Tue
9Wed4:041.55:55-0.56:438:05Third Quarter9Wed
10Thu5:011.66:40-0.56:448:04Waning Crescent10Thu
11Fri5:521.77:26-0.46:458:03Waning Crescent11Fri
12Sat6:431.68:14-0.36:458:02Waning Crescent12Sat
13Sun7:351.69:02-0.26:468:01Waning Crescent13Sun
14Mon8:281.51:461.411:411.49:49-0.16:468:00New Moon14Mon
15Tue9:141.42:351.412:061.46:477:59New Moon15Tue
16Wed9:411.43:181.412:361.36:477:58New Moon16Wed
17Thu9:291.34:051.31:081.26:487:57New Moon17Thu
18Fri8:401.35:041.21:351.16:497:56Waxing Crescent18Fri
19Sat8:061.36:211.112:160.41:580.96:497:55Waxing Crescent19Sat
20Sun7:511.37:591.012:330.62:230.76:507:54Waxing Crescent20Sun
21Mon7:381.312:150.92:510.46:507:53Waxing Crescent21Mon
22Tue7:021.43:240.26:517:52First Quarter22Tue
23Wed5:131.54:030.06:517:51First Quarter23Wed
24Thu5:081.74:48-0.26:527:50First Quarter24Thu
25Fri5:391.95:39-0.36:527:49First Quarter25Fri
26Sat6:241.96:38-0.36:537:48Waxing Gibbous26Sat
27Sun7:201.97:40-0.46:547:47Waxing Gibbous27Sun
28Mon8:291.98:44-0.36:547:46Waxing Gibbous28Mon
29Tue1:051.99:46-0.36:557:45Full Moon29Tue
30Wed2:421.910:43-0.16:557:43Full Moon30Wed
31Thu7:461.44:061.810:371.411:360.26:567:42Full Moon31Thu
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 2:41 am — 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Port Bolivar, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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