Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Thursday, July 30, 2026
The tide is currently falling in Port Bolivar, TX.
Next low tide : in 4h 57m at 11:36 pm (-0.2 ft)
Next high tide (tomorrow) : 10:12 am (1.2 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:38 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Oct 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:331.912:170.47:127:03Waning Gibbous1Tue
2Wed3:452.012:530.27:137:02Waning Gibbous2Wed
3Thu2:562.11:340.17:147:01Waning Gibbous3Thu
4Fri3:132.32:240.17:147:00Third Quarter4Fri
5Sat3:492.33:250.27:156:59Third Quarter5Sat
6Sun4:312.44:370.27:156:57Third Quarter6Sun
7Mon5:112.35:570.37:166:56Third Quarter7Mon
8Tue5:392.27:160.47:166:55Waning Crescent8Tue
9Wed5:372.012:342.09:251.98:240.57:176:54Waning Crescent9Wed
10Thu5:011.82:142.09:231.69:210.77:186:53Waning Crescent10Thu
11Fri4:261.73:402.09:471.210:111.07:186:52New Moon11Fri
12Sat4:111.75:022.010:200.810:561.37:196:51New Moon12Sat
13Sun4:091.86:282.010:560.511:401.67:196:50New Moon13Sun
14Mon4:111.98:142.011:320.27:206:49New Moon14Mon
15Tue4:092.012:251.912:090.17:216:48Waxing Crescent15Tue
16Wed12:192.112:470.17:216:46Waxing Crescent16Wed
17Thu1:382.21:280.17:226:45Waxing Crescent17Thu
18Fri2:232.22:150.37:236:44First Quarter18Fri
19Sat3:062.23:120.57:236:43First Quarter19Sat
20Sun3:452.14:200.67:246:42First Quarter20Sun
21Mon4:182.15:370.77:256:41First Quarter21Mon
22Tue4:392.06:500.77:256:40First Quarter22Tue
23Wed4:401.812:371.69:501.57:470.87:266:40Waxing Gibbous23Wed
24Thu4:141.72:031.69:401.48:320.97:276:39Waxing Gibbous24Thu
25Fri3:381.73:191.69:391.19:111.17:276:38Waxing Gibbous25Fri
26Sat3:191.74:291.79:490.89:461.37:286:37Waxing Gibbous26Sat
27Sun3:121.85:381.810:080.510:181.67:296:36Full Moon27Sun
28Mon3:071.86:531.810:330.210:351.87:306:35Full Moon28Mon
29Tue2:541.911:030.07:306:34Full Moon29Tue
30Wed2:022.011:38-0.27:316:33Waning Gibbous30Wed
31Thu1:332.112:19-0.27:326:33Waning Gibbous31Thu
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 4:54 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 99% 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 Full Moon (99% 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