Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide (tomorrow) : 5:17 am (0.6 ft)
Next high tide (tomorrow) : in 2h 21m at 12:06 am (0.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Sep 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:441.84:540.26:567:40Third Quarter1Sat
2Sun5:271.95:530.16:577:39Third Quarter2Sun
3Mon6:121.96:520.16:577:38Waning Crescent3Mon
4Tue6:551.87:490.26:587:37Waning Crescent4Tue
5Wed7:241.712:241.710:241.78:410.26:597:36Waning Crescent5Wed
6Thu6:401.61:581.79:381.59:280.36:597:35Waning Crescent6Thu
7Fri5:251.53:151.710:001.310:130.57:007:33New Moon7Fri
8Sat5:081.54:301.710:401.010:560.87:007:32New Moon8Sat
9Sun5:121.65:471.711:240.711:371.17:017:31New Moon9Sun
10Mon5:241.77:121.712:090.47:017:30Waxing Crescent10Mon
11Tue5:391.89:081.712:141.412:580.27:027:29Waxing Crescent11Tue
12Wed5:511.912:231.71:500.07:027:27Waxing Crescent12Wed
13Thu5:481.92:460.07:037:26First Quarter13Thu
14Fri3:432.03:490.07:037:25First Quarter14Fri
15Sat4:102.14:590.17:047:24First Quarter15Sat
16Sun4:452.06:140.37:047:22First Quarter16Sun
17Mon5:161.911:25 AM1.98:511.87:270.47:057:21Waxing Gibbous17Mon
18Tue5:351.812:541.99:111.78:300.57:057:20Waxing Gibbous18Tue
19Wed5:381.72:091.89:381.59:190.67:067:19Waxing Gibbous19Wed
20Thu5:211.63:151.810:061.39:580.87:067:17Full Moon20Thu
21Fri4:571.64:181.710:331.110:311.07:077:16Full Moon21Fri
22Sat4:451.75:191.710:590.911:011.27:077:15Full Moon22Sat
23Sun4:461.76:211.711:250.711:281.47:087:14Full Moon23Sun
24Mon4:531.87:311.711:520.611:411.67:087:13Full Moon24Mon
25Tue4:571.812:210.57:097:11Waning Gibbous25Tue
26Wed4:351.812:540.47:097:10Waning Gibbous26Wed
27Thu2:361.91:320.47:107:09Waning Gibbous27Thu
28Fri2:572.02:160.47:107:08Waning Gibbous28Fri
29Sat3:342.13:080.57:117:06Third Quarter29Sat
30Sun4:152.14:090.57:127:05Third Quarter30Sun
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 2:41 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 48% 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 (48% 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