Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 13h 57m at 1:32 am (0.2 ft)
Next high tide (tomorrow) : 9:44 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:041.25:421.11:480.12:541.17:087:37Waning Gibbous1Sat
2Sun11:191.32:380.17:077:38Third Quarter2Sun
3Mon12:251.33:320.17:067:38Third Quarter3Mon
4Tue1:151.34:310.17:047:39Third Quarter4Tue
5Wed1:521.35:360.27:421.17:037:39Third Quarter5Wed
6Thu2:221.26:440.27:431.07:027:40Waning Crescent6Thu
7Fri12:441.22:491.27:500.38:110.87:017:41Waning Crescent7Fri
8Sat2:161.33:151.28:500.48:480.57:007:41Waning Crescent8Sat
9Sun3:311.43:391.29:450.59:300.36:597:42New Moon9Sun
10Mon4:391.64:051.210:380.710:140.16:587:42New Moon10Mon
11Tue5:411.74:311.311:310.911:02-0.16:567:43New Moon11Tue
12Wed6:421.74:581.312:281.06:557:43Waxing Crescent12Wed
13Thu7:431.75:281.31:331.26:547:44Waxing Crescent13Thu
14Fri8:481.65:591.312:50-0.22:461.26:537:45Waxing Crescent14Fri
15Sat9:581.56:321.31:50-0.14:031.36:527:45Waxing Crescent15Sat
16Sun11:111.52:550.06:517:46First Quarter16Sun
17Mon12:151.44:010.26:507:46First Quarter17Mon
18Tue1:071.45:100.37:491.16:497:47First Quarter18Tue
19Wed1:471.36:230.58:151.06:487:48First Quarter19Wed
20Thu12:551.12:191.37:330.68:380.86:477:48Waxing Gibbous20Thu
21Fri2:111.22:451.28:330.78:590.76:467:49Waxing Gibbous21Fri
22Sat3:161.33:061.29:220.89:210.66:457:49Waxing Gibbous22Sat
23Sun4:121.33:201.210:010.99:450.46:447:50Waxing Gibbous23Sun
24Mon5:001.43:271.210:361.010:120.36:437:51Full Moon24Mon
25Tue5:441.53:261.211:101.110:410.26:427:51Full Moon25Tue
26Wed6:251.53:301.311:481.211:120.16:417:52Full Moon26Wed
27Thu7:071.53:391.312:411.36:407:53Full Moon27Thu
28Fri7:531.66:397:53Waning Gibbous28Fri
29Sat8:431.612:240.16:387:54Waning Gibbous29Sat
30Sun9:391.51:060.16:377:54Waning Gibbous30Sun
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 5:38 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 spring phase. Tonight's moon is 80% 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 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 Waning Gibbous (80% illuminated). This places Galveston Pier 21, 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