Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 5h 10m at 3:07 pm (0.5 ft)
Next high tide : 9:30 pm (1.0 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Mar 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:200.96:460.81:12-0.11:290.66:436:19Waning Gibbous1Tue
2Wed9:520.86:450.82:13-0.22:190.76:426:19Third Quarter2Wed
3Thu11:330.96:000.83:13-0.23:350.86:416:20Third Quarter3Thu
4Fri1:250.94:14-0.26:406:21Third Quarter4Fri
5Sat3:100.95:17-0.26:386:21Third Quarter5Sat
6Sun3:030.96:16-0.16:376:22Waning Crescent6Sun
7Mon3:140.97:08-0.18:240.86:366:23Waning Crescent7Mon
8Tue3:290.97:52-0.18:250.76:356:23Waning Crescent8Tue
9Wed1:060.93:470.98:30-0.18:450.76:346:24Waning Crescent9Wed
10Thu2:070.94:040.99:040.09:110.56:336:24New Moon10Thu
11Fri3:031.04:220.99:360.19:400.46:326:25New Moon11Fri
12Sat3:551.04:390.910:070.210:120.36:306:26New Moon12Sat
13Sun5:481.05:550.911:400.311:470.27:297:26New Moon13Sun
14Mon6:421.06:100.912:140.57:287:27Waxing Crescent14Mon
15Tue7:421.16:240.912:270.112:530.67:277:27Waxing Crescent15Tue
16Wed8:501.16:381.01:120.01:360.87:267:28Waxing Crescent16Wed
17Thu10:101.16:541.02:04-0.12:250.97:257:29Waxing Crescent17Thu
18Fri11:341.17:121.13:02-0.13:221.07:237:29First Quarter18Fri
19Sat12:481.24:06-0.24:571.17:227:30First Quarter19Sat
20Sun1:461.25:16-0.27:011.17:217:30First Quarter20Sun
21Mon2:321.26:30-0.17:391.07:207:31Waxing Gibbous21Mon
22Tue3:101.17:41-0.18:160.97:197:32Waxing Gibbous22Tue
23Wed1:311.23:431.18:440.08:550.77:187:32Waxing Gibbous23Wed
24Thu2:511.34:141.19:400.19:360.57:167:33Full Moon24Thu
25Fri4:021.34:431.110:300.310:180.37:157:33Full Moon25Fri
26Sat5:051.45:101.111:180.511:010.27:147:34Full Moon26Sat
27Sun6:051.45:351.112:050.67:137:35Full Moon27Sun
28Mon7:041.45:571.112:540.87:127:35Waning Gibbous28Mon
29Tue8:041.36:101.112:340.01:510.97:107:36Waning Gibbous29Tue
30Wed9:101.36:081.11:240.02:581.07:097:36Waning Gibbous30Wed
31Thu10:251.32:170.17:087:37Waning Gibbous31Thu
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 6:18 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 75% 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 Waning Gibbous (75% 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