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 9h 14m 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 - Jul 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:181.49:15-0.76:238:22Waning Crescent1Wed
2Thu9:221.49:57-0.76:248:22New Moon2Thu
3Fri10:261.410:40-0.66:248:22New Moon3Fri
4Sat11:201.411:24-0.56:248:22New Moon4Sat
5Sun11:561.36:258:22Waxing Crescent5Sun
6Mon11:561.212:06-0.46:258:22Waxing Crescent6Mon
7Tue10:341.112:45-0.26:268:22Waxing Crescent7Tue
8Wed9:401.07:370.71:210.04:220.66:268:22Waxing Crescent8Wed
9Thu9:291.010:260.61:510.34:310.36:278:22First Quarter9Thu
10Fri9:301.12:020.65:00-0.16:278:21First Quarter10Fri
11Sat9:341.25:38-0.46:288:21First Quarter11Sat
12Sun9:281.36:21-0.76:288:21First Quarter12Sun
13Mon6:391.47:08-0.96:298:21Waxing Gibbous13Mon
14Tue7:161.57:59-1.06:298:20Waxing Gibbous14Tue
15Wed8:171.58:54-1.06:308:20Waxing Gibbous15Wed
16Thu12:351.59:50-0.96:308:19Full Moon16Thu
17Fri2:071.510:46-0.76:318:19Full Moon17Fri
18Sat3:201.411:39-0.56:318:19Full Moon18Sat
19Sun4:331.26:328:18Waning Gibbous19Sun
20Mon10:061.05:531.012:28-0.31:560.96:338:18Waning Gibbous20Mon
21Tue9:200.97:290.91:120.02:550.66:338:17Waning Gibbous21Tue
22Wed9:001.09:390.71:480.33:410.46:348:17Waning Gibbous22Wed
23Thu8:581.12:140.64:180.16:348:16Third Quarter23Thu
24Fri9:031.14:52-0.16:358:16Third Quarter24Fri
25Sat9:051.25:25-0.36:358:15Third Quarter25Sat
26Sun5:051.36:01-0.46:368:15Third Quarter26Sun
27Mon5:391.46:41-0.56:378:14Waning Crescent27Mon
28Tue6:231.47:25-0.56:378:13Waning Crescent28Tue
29Wed7:151.58:11-0.56:388:13Waning Crescent29Wed
30Thu8:121.48:58-0.56:388:12Waning Crescent30Thu
31Fri9:111.49:44-0.46:398:11New Moon31Fri
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