Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Saturday, July 18, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide (tomorrow) : 2:37 am (0.3 ft)
Next high tide : in 2h 01m at 8:07 pm (0.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:31 am
Moon phase : Waxing Crescent (23% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Feb 2067

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:040.66:520.611:13-0.37:075:57Waning Gibbous1Tue
2Wed5:000.56:440.612:110.311:39 AM-0.17:075:58Waning Gibbous2Wed
3Thu6:070.56:440.612:450.111:54 AM0.17:065:59Waning Gibbous3Thu
4Fri7:260.46:430.71:21-0.111:40 AM0.37:065:59Waning Gibbous4Fri
5Sat6:300.72:02-0.37:056:00Third Quarter5Sat
6Sun5:420.92:46-0.57:046:01Third Quarter6Sun
7Mon5:291.03:37-0.77:036:02Third Quarter7Mon
8Tue6:011.14:33-0.87:036:03Third Quarter8Tue
9Wed6:531.15:33-0.97:026:03Waning Crescent9Wed
10Thu10:581.16:37-0.97:016:04Waning Crescent10Thu
11Fri7:40-0.97:006:05Waning Crescent11Fri
12Sat12:371.28:42-0.97:006:06New Moon12Sat
13Sun1:561.26:270.79:39-0.79:280.66:596:07New Moon13Sun
14Mon3:111.15:580.610:33-0.510:330.46:586:07New Moon14Mon
15Tue4:261.05:560.711:23-0.211:300.16:576:08Waxing Crescent15Tue
16Wed5:440.96:070.712:100.16:566:09Waxing Crescent16Wed
17Thu7:100.86:230.812:23-0.112:560.46:556:10Waxing Crescent17Thu
18Fri9:060.86:440.91:15-0.31:390.76:546:10Waxing Crescent18Fri
19Sat7:101.02:06-0.46:546:11First Quarter19Sat
20Sun3:101.02:57-0.55:181.06:536:12First Quarter20Sun
21Mon3:521.03:51-0.46:526:13First Quarter21Mon
22Tue4:341.04:48-0.47:511.06:516:13First Quarter22Tue
23Wed5:141.05:48-0.38:240.96:506:14Waxing Gibbous23Wed
24Thu5:501.06:48-0.38:510.96:496:15Waxing Gibbous24Thu
25Fri12:131.06:140.97:43-0.29:150.96:486:15Waxing Gibbous25Fri
26Sat1:111.06:170.98:32-0.29:350.86:476:16Waxing Gibbous26Sat
27Sun2:051.05:470.89:14-0.19:550.76:466:17Full Moon27Sun
28Mon2:571.05:120.89:520.010:170.56:456:17Full Moon28Mon
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 11:22 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 transitional phase. Tonight's moon is 23% 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 Waxing Crescent (23% 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