Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Port Bolivar, TX.
Next low tide (tomorrow) : in 9h 14m at 1:41 am (0.0 ft)
Next high tide (tomorrow) : 10:38 am (1.0 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Sep 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:501.85:440.26:577:40Third Quarter1Tue
2Wed5:291.86:420.26:577:39Waning Crescent2Wed
3Thu6:051.77:380.36:587:38Waning Crescent3Thu
4Fri6:341.712:451.610:291.68:290.36:587:36Waning Crescent4Fri
5Sat6:411.61:511.610:271.59:130.46:597:35Waning Crescent5Sat
6Sun6:061.52:511.610:271.49:520.56:597:34New Moon6Sun
7Mon5:251.53:521.610:411.210:270.77:007:33New Moon7Mon
8Tue5:121.54:541.611:071.010:580.97:007:32New Moon8Tue
9Wed5:141.66:001.611:390.711:231.27:017:30New Moon9Wed
10Thu5:221.77:141.612:170.57:017:29Waxing Crescent10Thu
11Fri5:281.712:580.37:027:28Waxing Crescent11Fri
12Sat5:251.81:450.17:027:27Waxing Crescent12Sat
13Sun4:461.92:370.17:037:26First Quarter13Sun
14Mon4:182.03:380.17:037:24First Quarter14Mon
15Tue4:392.14:450.17:047:23First Quarter15Tue
16Wed5:092.15:590.27:047:22First Quarter16Wed
17Thu5:342.07:120.37:057:21Waxing Gibbous17Thu
18Fri5:441.912:371.99:051.88:180.47:057:19Waxing Gibbous18Fri
19Sat5:291.72:021.99:221.69:150.67:067:18Waxing Gibbous19Sat
20Sun5:011.63:181.99:511.310:030.87:067:17Full Moon20Sun
21Mon4:431.64:291.810:241.010:451.07:077:16Full Moon21Mon
22Tue4:401.75:401.810:590.811:231.37:077:15Full Moon22Tue
23Wed4:471.86:561.811:340.611:551.57:087:13Full Moon23Wed
24Thu4:581.88:371.812:090.47:097:12Waning Gibbous24Thu
25Fri5:081.912:101.712:450.47:097:11Waning Gibbous25Fri
26Sat4:591.91:240.47:107:10Waning Gibbous26Sat
27Sun2:442.02:070.47:107:08Waning Gibbous27Sun
28Mon3:082.02:570.57:117:07Third Quarter28Mon
29Tue3:432.13:540.67:117:06Third Quarter29Tue
30Wed4:182.05:000.67:127:05Third Quarter30Wed
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 6:09 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 80% 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 Gibbous (80% 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