Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 6:20 pm (-0.1 ft)
Next high tide : in 2h 58m at 4:31 am (1.2 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Aug 2070

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:141.39:51 AM1.35:121.26:45-0.36:398:11Waning Crescent1Fri
2Sat3:121.410:45 AM1.47:311.37:41-0.46:408:10Waning Crescent2Sat
3Sun4:001.511:59 AM1.48:311.38:34-0.46:418:09Waning Crescent3Sun
4Mon4:411.51:181.49:071.39:25-0.46:418:08Waning Crescent4Mon
5Tue5:171.42:351.49:451.210:13-0.36:428:08New Moon5Tue
6Wed5:511.43:491.410:301.110:59-0.16:428:07New Moon6Wed
7Thu6:241.44:591.311:220.911:430.16:438:06New Moon7Thu
8Fri6:561.36:081.212:240.86:448:05Waxing Crescent8Fri
9Sat7:271.37:221.212:260.31:300.66:448:04Waxing Crescent9Sat
10Sun7:561.28:461.11:070.62:330.56:458:03Waxing Crescent10Sun
11Mon8:201.210:271.11:470.83:290.46:458:03Waxing Crescent11Mon
12Tue8:321.22:231.04:220.36:468:02First Quarter12Tue
13Wed12:201.28:11 AM1.22:461.15:130.26:468:01First Quarter13Wed
14Thu7:241.36:020.26:478:00First Quarter14Thu
15Fri5:141.36:510.16:487:59First Quarter15Fri
16Sat4:521.47:370.16:487:58Waxing Gibbous16Sat
17Sun4:331.48:190.16:497:57Waxing Gibbous17Sun
18Mon4:441.48:580.16:497:56Waxing Gibbous18Mon
19Tue5:011.41:091.39:481.39:330.16:507:55Waxing Gibbous19Tue
20Wed5:201.42:251.310:101.210:050.26:507:54Full Moon20Wed
21Thu5:401.43:351.310:391.110:370.36:517:53Full Moon21Thu
22Fri6:011.44:411.311:131.011:090.46:517:52Full Moon22Fri
23Sat6:211.45:481.311:530.911:420.66:527:51Waning Gibbous23Sat
24Sun6:401.46:591.312:380.76:527:49Waning Gibbous24Sun
25Mon6:581.48:191.312:200.81:290.66:537:48Waning Gibbous25Mon
26Tue7:151.49:511.31:021.02:230.46:537:47Waning Gibbous26Tue
27Wed7:311.411:271.41:521.23:200.36:547:46Third Quarter27Wed
28Thu7:491.52:501.34:200.16:557:45Third Quarter28Thu
29Fri12:511.58:12 AM1.54:091.55:230.16:557:44Third Quarter29Fri
30Sat1:571.69:07 AM1.57:011.56:270.06:567:43Waning Crescent30Sat
31Sun2:491.610:53 AM1.57:591.57:300.06:567:42Waning Crescent31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

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What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 11:25 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 Galveston Pier 21, TX?

Galveston Pier 21, TX is currently in a transitional phase. Tonight's moon is 62% 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 Galveston Pier 21, 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 Galveston Pier 21, TX?

Tide predictions for Galveston Pier 21, 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 Galveston Pier 21, TX?

Tide data for Galveston Pier 21, TX is sourced from NOAA Station #8771450. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8771450.

What is the moon phase in Galveston Pier 21, TX tonight?

Tonight the moon over Galveston Pier 21, TX is First Quarter (62% illuminated). This places Galveston Pier 21, 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