Tides Today & Tomorrow in Port Bolivar, TX

TIDE TIMES for Friday, July 17, 2026
The tide is currently rising in Port Bolivar, TX.
Next low tide : 2:15 pm (1.0 ft)
Next high tide : in 7h 17m at 10:57 am (1.0 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 6:30 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #8771328
Common Questions About Tides

Port Bolivar, TX Tides - May 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:071.710:39-0.26:367:55Full Moon1Sun
2Mon8:581.811:12-0.36:357:56Full Moon2Mon
3Tue11:201.911:50-0.46:347:56Full Moon3Tue
4Wed12:411.96:347:57Waning Gibbous4Wed
5Thu1:441.912:34-0.36:337:58Waning Gibbous5Thu
6Fri2:381.91:27-0.36:327:58Waning Gibbous6Fri
7Sat3:211.92:28-0.16:317:59Third Quarter7Sat
8Sun3:431.73:380.06:318:00Third Quarter8Sun
9Mon3:271.54:540.28:241.36:308:00Third Quarter9Mon
10Tue2:381.46:100.47:581.06:298:01Third Quarter10Tue
11Wed12:481.42:061.37:220.68:150.66:288:01Waning Crescent11Wed
12Thu2:371.41:571.48:300.98:440.26:288:02Waning Crescent12Thu
13Fri4:151.61:571.59:371.29:17-0.16:278:03Waning Crescent13Fri
14Sat5:491.71:581.610:501.59:52-0.46:278:03New Moon14Sat
15Sun7:241.810:28-0.56:268:04New Moon15Sun
16Mon9:061.811:07-0.56:258:05New Moon16Mon
17Tue10:451.811:48-0.46:258:05New Moon17Tue
18Wed12:051.86:248:06Waxing Crescent18Wed
19Thu1:081.712:33-0.36:248:06Waxing Crescent19Thu
20Fri1:561.61:23-0.16:238:07Waxing Crescent20Fri
21Sat2:281.52:180.16:238:08First Quarter21Sat
22Sun2:421.43:190.36:228:08First Quarter22Sun
23Mon2:301.34:230.48:221.06:228:09First Quarter23Mon
24Tue1:501.25:270.68:060.86:228:09First Quarter24Tue
25Wed1:031.01:141.26:270.88:040.56:218:10First Quarter25Wed
26Thu2:561.112:571.37:281.08:130.26:218:11Waxing Gibbous26Thu
27Fri4:401.312:461.38:391.28:31-0.16:208:11Waxing Gibbous27Fri
28Sat6:141.58:55-0.46:208:12Waxing Gibbous28Sat
29Sun7:401.69:26-0.66:208:12Full Moon29Sun
30Mon9:021.710:01-0.76:208:13Full Moon30Mon
31Tue10:231.810:42-0.76:198:13Full Moon31Tue
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 12:36 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 spring phase. Tonight's moon is 15% 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 Waxing Crescent (15% 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