Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Port Bolivar, TX.
Next low tide : in 8h 05m at 10:04 pm (-0.5 ft)
Next high tide (tomorrow) : 2:52 pm (1.7 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Sep 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:021.88:520.06:567:41Waning Crescent1Wed
2Thu1:181.79:410.16:577:40New Moon2Thu
3Fri7:331.62:471.710:161.510:250.26:577:38New Moon3Fri
4Sat6:191.54:081.710:561.311:070.56:587:37New Moon4Sat
5Sun6:011.55:301.611:400.911:460.86:597:36New Moon5Sun
6Mon6:001.67:001.612:250.66:597:35Waxing Crescent6Mon
7Tue6:041.78:561.612:211.21:110.27:007:34Waxing Crescent7Tue
8Wed6:041.812:371.51:590.07:007:32Waxing Crescent8Wed
9Thu5:241.92:52-0.17:017:31First Quarter9Thu
10Fri3:402.13:49-0.27:017:30First Quarter10Fri
11Sat4:142.14:55-0.17:027:29First Quarter11Sat
12Sun4:592.16:070.07:027:28First Quarter12Sun
13Mon5:442.17:230.27:037:26Waxing Gibbous13Mon
14Tue6:211.912:241.99:391.88:330.37:037:25Waxing Gibbous14Tue
15Wed6:421.81:461.99:521.79:290.47:047:24Waxing Gibbous15Wed
16Thu6:391.72:551.910:171.510:120.67:047:23Full Moon16Thu
17Fri6:101.63:591.810:471.310:460.87:057:21Full Moon17Fri
18Sat5:401.65:041.711:171.111:151.07:057:20Full Moon18Sat
19Sun5:261.76:131.611:460.911:391.37:067:19Full Moon19Sun
20Mon5:231.77:321.612:130.77:067:18Waning Gibbous20Mon
21Tue5:201.812:410.57:077:17Waning Gibbous21Tue
22Wed4:521.81:120.47:077:15Waning Gibbous22Wed
23Thu2:371.91:460.37:087:14Waning Gibbous23Thu
24Fri2:542.12:280.37:087:13Third Quarter24Fri
25Sat3:332.13:180.47:097:12Third Quarter25Sat
26Sun4:172.24:180.47:097:10Third Quarter26Sun
27Mon5:032.25:270.47:107:09Third Quarter27Mon
28Tue5:452.26:360.57:107:08Waning Crescent28Tue
29Wed6:172.17:380.57:117:07Waning Crescent29Wed
30Thu6:121.912:361.810:111.88:320.67:117:06Waning Crescent30Thu
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 6:28 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 2% 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 New Moon (2% 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