Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Port Bolivar, TX.
Next low tide : in 6h 06m at 7:59 pm (-0.6 ft)
Next high tide (tomorrow) : 7:38 am (1.4 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - May 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:411.611:450.06:367:55Full Moon1Thu
2Fri10:461.66:357:56Waning Gibbous2Fri
3Sat12:521.712:210.06:347:56Waning Gibbous3Sat
4Sun1:511.71:010.06:347:57Waning Gibbous4Sun
5Mon2:361.71:480.06:337:58Waning Gibbous5Mon
6Tue3:091.62:410.16:327:58Third Quarter6Tue
7Wed3:161.53:420.26:317:59Third Quarter7Wed
8Thu2:301.44:500.38:191.26:318:00Third Quarter8Thu
9Fri1:591.46:020.47:561.06:308:00Waning Crescent9Fri
10Sat12:511.32:021.47:150.68:150.76:298:01Waning Crescent10Sat
11Sun2:211.42:171.48:240.88:480.46:288:01Waning Crescent11Sun
12Mon3:411.52:371.49:291.09:270.16:288:02Waning Crescent12Mon
13Tue4:581.62:591.510:341.210:08-0.26:278:03New Moon13Tue
14Wed6:151.73:221.511:421.410:51-0.36:278:03New Moon14Wed
15Thu7:411.73:421.51:011.56:268:04New Moon15Thu
16Fri9:311.76:258:05Waxing Crescent16Fri
17Sat11:211.712:22-0.36:258:05Waxing Crescent17Sat
18Sun12:331.61:11-0.26:248:06Waxing Crescent18Sun
19Mon1:201.52:030.06:248:06Waxing Crescent19Mon
20Tue1:491.42:590.26:238:07First Quarter20Tue
21Wed2:011.34:000.47:441.06:238:08First Quarter21Wed
22Thu1:531.35:060.57:590.86:228:08First Quarter22Thu
23Fri12:301.11:381.26:140.78:140.76:228:09First Quarter23Fri
24Sat1:591.11:351.37:190.88:280.56:228:09Waxing Gibbous24Sat
25Sun3:161.21:421.38:180.98:460.36:218:10Waxing Gibbous25Sun
26Mon4:271.31:551.39:161.19:080.16:218:10Waxing Gibbous26Mon
27Tue5:341.32:061.310:171.29:34-0.16:208:11Waxing Gibbous27Tue
28Wed6:451.42:081.311:321.310:04-0.36:208:12Full Moon28Wed
29Thu8:161.510:37-0.36:208:12Full Moon29Thu
30Fri10:111.511:14-0.46:208:13Full Moon30Fri
31Sat11:341.511:54-0.46:198:13Full Moon31Sat
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 1:48 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 spring phase. Tonight's moon is 86% 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 Gibbous (86% 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