Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Monday, August 10, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide : 9:03 pm (-0.7 ft)
Next high tide : in 2h 37m at 8:48 am (1.7 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Jul 2098

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:231.512:07-0.96:238:23Waxing Crescent1Tue
2Wed12:591.31:09-0.76:248:22Waxing Crescent2Wed
3Thu12:001.12:12-0.44:390.96:248:22Waxing Crescent3Thu
4Fri11:201.010:100.83:16-0.15:130.56:248:22First Quarter4Fri
5Sat11:051.04:200.35:500.16:258:22First Quarter5Sat
6Sun12:520.911:04 AM1.15:300.76:27-0.36:258:22First Quarter6Sun
7Mon3:301.111:09 AM1.26:571.07:02-0.66:268:22Waxing Gibbous7Mon
8Tue5:121.311:16 AM1.38:391.27:37-0.86:268:22Waxing Gibbous8Tue
9Wed6:201.48:12-0.86:278:22Waxing Gibbous9Wed
10Thu7:191.58:48-0.86:278:21Waxing Gibbous10Thu
11Fri8:181.49:27-0.76:288:21Full Moon11Fri
12Sat9:201.410:08-0.66:288:21Full Moon12Sat
13Sun10:221.310:51-0.56:298:21Full Moon13Sun
14Mon11:151.311:36-0.46:298:20Full Moon14Mon
15Tue11:511.26:308:20Waning Gibbous15Tue
16Wed12:031.212:18-0.36:308:20Waning Gibbous16Wed
17Thu11:381.112:57-0.16:318:19Waning Gibbous17Thu
18Fri10:401.01:290.16:318:19Waning Gibbous18Fri
19Sat10:031.010:060.61:470.35:060.46:328:18Third Quarter19Sat
20Sun9:441.01:140.65:080.16:338:18Third Quarter20Sun
21Mon9:211.15:29-0.26:338:17Third Quarter21Mon
22Tue7:241.25:59-0.56:348:17Third Quarter22Tue
23Wed6:431.46:38-0.76:348:16Waning Crescent23Wed
24Thu7:141.57:23-0.96:358:16Waning Crescent24Thu
25Fri8:071.68:13-0.96:358:15Waning Crescent25Fri
26Sat9:201.69:09-1.06:368:15Waning Crescent26Sat
27Sun11:051.610:08-0.96:378:14New Moon27Sun
28Mon1:461.611:07-0.86:378:13New Moon28Mon
29Tue3:281.56:388:13New Moon29Tue
30Wed5:031.412:06-0.66:388:12Waxing Crescent30Wed
31Thu9:361.16:471.21:03-0.31:560.96:398:11Waxing Crescent31Thu
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 2:55 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 6% 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 Waning Crescent (6% 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