Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Port Bolivar, TX.
Next low tide (tomorrow) : in 2h 39m at 12:34 am (0.2 ft)
Next high tide (tomorrow) : 8:22 am (1.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - Oct 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:121.97:331.911:390.410:271.87:137:03New Moon1Sun
2Mon4:022.012:160.27:137:02Waxing Crescent2Mon
3Tue3:252.112:590.17:147:01Waxing Crescent3Tue
4Wed3:092.21:490.17:147:00Waxing Crescent4Wed
5Thu3:332.32:480.27:156:59First Quarter5Thu
6Fri4:072.33:570.37:156:57First Quarter6Fri
7Sat4:382.25:140.47:166:56First Quarter7Sat
8Sun4:552.16:330.57:166:55Waxing Gibbous8Sun
9Mon4:471.912:101.98:501.87:440.67:176:54Waxing Gibbous9Mon
10Tue4:131.81:511.98:561.58:450.87:186:53Waxing Gibbous10Tue
11Wed3:441.73:171.99:201.29:361.17:186:52Waxing Gibbous11Wed
12Thu3:331.84:371.99:510.810:231.47:196:51Full Moon12Thu
13Fri3:351.85:552.010:240.511:061.67:206:50Full Moon13Fri
14Sat3:441.97:222.010:580.311:471.87:206:49Full Moon14Sat
15Sun3:542.09:562.011:330.27:216:47Waning Gibbous15Sun
16Mon3:582.012:202.012:090.27:216:46Waning Gibbous16Mon
17Tue1:382.112:480.27:226:45Waning Gibbous17Tue
18Wed2:032.11:320.37:236:44Waning Gibbous18Wed
19Thu2:402.12:220.57:236:43Third Quarter19Thu
20Fri3:152.13:200.67:246:42Third Quarter20Fri
21Sat3:452.04:280.77:256:41Third Quarter21Sat
22Sun4:051.95:390.87:256:40Third Quarter22Sun
23Mon4:071.86:440.97:266:39Third Quarter23Mon
24Tue3:391.71:151.59:121.47:381.07:276:39Waning Crescent24Tue
25Wed2:561.72:391.69:041.18:251.27:276:38Waning Crescent25Wed
26Thu2:361.73:521.79:100.89:081.37:286:37Waning Crescent26Thu
27Fri2:321.74:581.89:280.59:471.57:296:36New Moon27Fri
28Sat2:341.86:031.89:540.210:181.77:306:35New Moon28Sat
29Sun2:371.97:241.910:270.010:001.97:306:34New Moon29Sun
30Mon2:332.011:04-0.27:316:33New Moon30Mon
31Tue2:142.011:47-0.27:326:33Waxing Crescent31Tue
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 4:28 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 91% 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 (91% 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