Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 7:04 pm (-0.2 ft)
Next high tide : in 2h 51m at 5:07 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Nov 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:411.64:571.89:240.410:051.46:325:33Full Moon1Mon
2Tue2:491.65:541.99:580.210:571.56:325:32Full Moon2Tue
3Wed2:561.66:542.010:390.06:335:31Waning Gibbous3Wed
4Thu2:531.78:012.012:271.711:27 AM0.06:345:31Waning Gibbous4Thu
5Fri9:161.912:230.06:355:30Waning Gibbous5Fri
6Sat10:311.91:250.06:355:29Third Quarter6Sat
7Sun11:291.82:330.16:365:29Third Quarter7Sun
8Mon3:450.36:375:28Third Quarter8Mon
9Tue12:121.75:010.56:385:27Third Quarter9Tue
10Wed12:451.611:35 AM1.47:181.26:170.66:395:27Waning Crescent10Wed
11Thu1:141.61:111.47:410.97:270.86:395:26Waning Crescent11Thu
12Fri1:391.52:291.58:090.78:271.06:405:26Waning Crescent12Fri
13Sat2:001.53:351.68:380.59:201.26:415:25New Moon13Sat
14Sun2:161.44:321.79:060.310:101.36:425:25New Moon14Sun
15Mon2:201.45:231.79:350.111:041.46:435:24New Moon15Mon
16Tue1:491.46:111.710:050.16:435:24New Moon16Tue
17Wed7:001.710:370.06:445:23Waxing Crescent17Wed
18Thu7:541.611:130.06:455:23Waxing Crescent18Thu
19Fri8:591.611:530.16:465:22Waxing Crescent19Fri
20Sat10:101.612:380.16:475:22Waxing Crescent20Sat
21Sun11:041.51:260.26:475:22Waxing Crescent21Sun
22Mon11:381.52:170.36:485:21First Quarter22Mon
23Tue3:090.46:495:21First Quarter23Tue
24Wed12:021.44:050.56:505:21First Quarter24Wed
25Thu12:211.411:24 AM1.07:440.95:080.66:515:21First Quarter25Thu
26Fri12:351.31:091.17:300.76:170.86:515:21Waxing Gibbous26Fri
27Sat12:461.32:211.27:400.57:240.96:525:20Waxing Gibbous27Sat
28Sun12:541.33:201.47:590.28:231.06:535:20Waxing Gibbous28Sun
29Mon1:031.34:131.58:26-0.19:171.26:545:20Full Moon29Mon
30Tue1:131.35:041.78:59-0.310:061.36:555:20Full Moon30Tue
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 12:05 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 71% 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 (71% 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