Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Monday, July 20, 2026
The tide is currently falling in Port Bolivar, TX.
Next low tide : in 4h 12m at 4:56 pm (0.0 ft)
Next high tide (tomorrow) : 9:38 am (1.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (43% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Jun 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:051.51:06-0.46:198:14Waning Gibbous1Wed
2Thu12:331.32:06-0.26:198:14Waning Gibbous2Thu
3Fri11:581.29:471.03:090.15:510.96:198:15Third Quarter3Fri
4Sat11:461.24:170.46:200.56:198:15Third Quarter4Sat
5Sun12:041.011:49 AM1.25:290.76:540.26:198:16Third Quarter5Sun
6Mon2:141.112:011.36:480.97:28-0.16:198:16Waning Crescent6Mon
7Tue4:071.312:171.38:091.28:03-0.46:198:17Waning Crescent7Tue
8Wed5:371.412:381.49:271.38:39-0.56:198:17Waning Crescent8Wed
9Thu6:531.51:001.410:421.49:14-0.66:188:18Waning Crescent9Thu
10Fri8:031.59:51-0.66:188:18New Moon10Fri
11Sat9:121.510:28-0.56:198:18New Moon11Sat
12Sun10:181.411:07-0.46:198:19New Moon12Sun
13Mon11:131.411:48-0.36:198:19New Moon13Mon
14Tue11:551.36:198:20Waxing Crescent14Tue
15Wed12:191.212:29-0.26:198:20Waxing Crescent15Wed
16Thu12:181.21:110.06:198:20Waxing Crescent16Thu
17Fri11:381.11:500.16:198:20Waxing Crescent17Fri
18Sat10:551.010:200.62:250.36:270.66:198:21First Quarter18Sat
19Sun10:401.12:460.56:120.36:198:21First Quarter19Sun
20Mon10:371.16:210.06:208:21First Quarter20Mon
21Tue10:351.16:44-0.26:208:21First Quarter21Tue
22Wed10:191.27:16-0.56:208:22Waxing Gibbous22Wed
23Thu8:001.37:54-0.76:208:22Waxing Gibbous23Thu
24Fri8:411.48:36-0.86:218:22Waxing Gibbous24Fri
25Sat9:481.59:23-0.96:218:22Full Moon25Sat
26Sun11:171.510:14-0.96:218:22Full Moon26Sun
27Mon1:101.511:07-0.86:218:22Full Moon27Mon
28Tue2:531.46:228:22Waning Gibbous28Tue
29Wed4:351.212:02-0.76:228:22Waning Gibbous29Wed
30Thu10:201.16:251.012:57-0.42:520.96:238:22Waning Gibbous30Thu
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 1:17 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 43% 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 (43% 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