Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 8:29 pm (-0.3 ft)
Next high tide (tomorrow) : in 9h 31m at 6:19 am (1.5 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Aug 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:461.09:26 AM1.23:090.95:560.26:398:11First Quarter1Wed
2Thu2:021.19:36 AM1.24:081.16:350.06:398:11First Quarter2Thu
3Fri2:581.29:56 AM1.25:421.27:16-0.16:408:10Waxing Gibbous3Fri
4Sat3:421.410:39 AM1.38:241.38:00-0.36:408:09Waxing Gibbous4Sat
5Sun4:201.411:48 AM1.38:511.38:45-0.46:418:08Waxing Gibbous5Sun
6Mon4:561.51:031.49:101.39:31-0.46:428:07Full Moon6Mon
7Tue5:311.52:201.49:421.210:17-0.36:428:07Full Moon7Tue
8Wed6:051.53:391.410:241.111:05-0.26:438:06Full Moon8Wed
9Thu6:381.44:581.411:171.011:540.06:438:05Full Moon9Thu
10Fri7:111.46:171.312:230.86:448:04Waning Gibbous10Fri
11Sat7:441.37:421.212:470.21:380.66:448:03Waning Gibbous11Sat
12Sun8:161.39:191.21:430.52:500.46:458:02Waning Gibbous12Sun
13Mon8:481.311:051.22:460.83:550.36:468:01Third Quarter13Mon
14Tue9:181.34:001.04:570.16:468:01Third Quarter14Tue
15Wed12:451.39:47 AM1.35:391.25:570.06:478:00Third Quarter15Wed
16Thu2:131.46:540.06:477:59Waning Crescent16Thu
17Fri3:241.47:470.06:487:58Waning Crescent17Fri
18Sat4:141.58:330.06:487:57Waning Crescent18Sat
19Sun4:491.59:130.16:497:56Waning Crescent19Sun
20Mon5:161.51:381.310:451.39:470.16:507:55New Moon20Mon
21Tue5:401.42:381.310:421.210:170.26:507:54New Moon21Tue
22Wed6:021.43:351.310:571.110:450.36:517:53New Moon22Wed
23Thu6:241.44:321.311:281.111:130.46:517:51New Moon23Thu
24Fri6:451.45:291.212:101.06:527:50New Moon24Fri
25Sat7:041.46:311.21:000.96:527:49Waxing Crescent25Sat
26Sun7:191.37:421.212:100.71:510.86:537:48Waxing Crescent26Sun
27Mon7:301.39:091.212:420.82:390.66:537:47Waxing Crescent27Mon
28Tue7:371.310:501.21:181.03:230.56:547:46Waxing Crescent28Tue
29Wed7:431.32:011.24:070.46:547:45First Quarter29Wed
30Thu12:221.47:45 AM1.42:531.34:540.36:557:44First Quarter30Thu
31Fri1:321.57:08 AM1.44:071.45:450.26:557:43First Quarter31Fri
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 1:24 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 Galveston Pier 21, TX?

Galveston Pier 21, TX is currently in a transitional phase. Tonight's moon is 79% 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 Waxing Gibbous (79% 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