Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide : 6:41 pm (-0.6 ft)
Next high tide : in 6h 10m at 5:15 am (1.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Mar 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:271.44:44-0.56:446:18First Quarter1Fri
2Sat6:261.45:44-0.56:436:19Waxing Gibbous2Sat
3Sun7:341.36:47-0.56:426:19Waxing Gibbous3Sun
4Mon7:50-0.56:406:20Waxing Gibbous4Mon
5Tue12:161.38:49-0.56:396:21Full Moon5Tue
6Wed1:471.46:271.09:43-0.49:200.96:386:21Full Moon6Wed
7Thu3:061.45:470.910:34-0.210:270.66:376:22Full Moon7Thu
8Fri4:251.35:431.011:230.111:220.36:366:23Waning Gibbous8Fri
9Sat5:481.35:501.012:130.56:356:23Waning Gibbous9Sat
10Sun7:221.25:581.112:150.01:080.86:346:24Waning Gibbous10Sun
11Mon9:341.36:011.21:06-0.32:291.26:336:25Waning Gibbous11Mon
12Tue1:271.41:58-0.56:316:25Third Quarter12Tue
13Wed2:471.52:54-0.56:306:26Third Quarter13Wed
14Thu3:451.53:55-0.46:296:26Third Quarter14Thu
15Fri4:371.55:03-0.36:286:27Waning Crescent15Fri
16Sat5:231.46:17-0.28:431.36:276:28Waning Crescent16Sat
17Sun5:591.37:32-0.18:571.26:266:28Waning Crescent17Sun
18Mon12:551.46:151.28:360.09:201.16:246:29Waning Crescent18Mon
19Tue2:001.46:021.19:250.29:460.96:236:29New Moon19Tue
20Wed2:581.45:291.110:040.310:150.86:226:30New Moon20Wed
21Thu3:551.35:061.110:380.510:440.66:216:31New Moon21Thu
22Fri4:531.35:001.111:120.711:120.46:206:31New Moon22Fri
23Sat5:561.34:591.211:470.911:400.26:186:32Waxing Crescent23Sat
24Sun7:071.34:491.212:311.16:176:32Waxing Crescent24Sun
25Mon12:061.312:110.16:166:33Waxing Crescent25Mon
26Tue1:291.512:440.06:156:34Waxing Crescent26Tue
27Wed2:201.61:22-0.16:146:34First Quarter27Wed
28Thu3:121.72:07-0.16:136:35First Quarter28Thu
29Fri4:041.73:010.06:116:35First Quarter29Fri
30Sat4:571.74:050.06:106:36First Quarter30Sat
31Sun5:471.65:160.06:096:36Waxing Gibbous31Sun
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 11:58 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 (62% illuminated). This places Port Bolivar, TX in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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