Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 3h 46m at 7:25 pm (-0.6 ft)
Next high tide (tomorrow) : 4:37 am (1.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Crescent (19% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:451.45:451.21:33-0.23:201.26:086:37Third Quarter1Fri
2Sat11:031.32:43-0.16:076:38Third Quarter2Sat
3Sun1:081.34:550.07:391.17:067:38Third Quarter3Sun
4Mon1:571.26:110.18:121.07:057:39Third Quarter4Mon
5Tue12:021.12:341.27:240.38:400.97:037:39Waning Crescent5Tue
6Wed1:311.23:041.28:290.49:050.87:027:40Waning Crescent6Wed
7Thu2:451.23:291.19:220.59:280.67:017:40Waning Crescent7Thu
8Fri3:481.33:501.110:050.79:500.57:007:41Waning Crescent8Fri
9Sat4:431.34:061.110:420.810:140.46:597:42New Moon9Sat
10Sun5:321.44:141.111:140.910:410.36:587:42New Moon10Sun
11Mon6:171.44:151.111:471.011:120.26:577:43New Moon11Mon
12Tue7:021.44:171.212:251.16:567:43New Moon12Tue
13Wed7:491.44:251.21:171.26:547:44Waxing Crescent13Wed
14Thu8:421.412:240.16:537:45Waxing Crescent14Thu
15Fri9:431.41:070.16:527:45Waxing Crescent15Fri
16Sat10:521.41:550.16:517:46Waxing Crescent16Sat
17Sun11:551.42:460.26:507:46First Quarter17Sun
18Mon12:411.43:400.26:497:47First Quarter18Mon
19Tue1:141.44:390.36:487:48First Quarter19Tue
20Wed1:391.35:440.47:351.06:477:48First Quarter20Wed
21Thu12:131.22:011.36:550.57:520.86:467:49Waxing Gibbous21Thu
22Fri1:521.32:201.38:040.78:220.56:457:49Waxing Gibbous22Fri
23Sat3:091.52:391.39:060.88:590.36:447:50Waxing Gibbous23Sat
24Sun4:171.62:591.310:041.09:410.06:437:51Full Moon24Sun
25Mon5:181.73:211.310:591.110:26-0.26:427:51Full Moon25Mon
26Tue6:151.83:461.411:551.311:15-0.36:417:52Full Moon26Tue
27Wed7:131.84:161.412:571.46:407:52Waning Gibbous27Wed
28Thu8:111.84:521.512:08-0.32:121.46:397:53Waning Gibbous28Thu
29Fri9:141.75:341.41:06-0.23:281.46:387:54Waning Gibbous29Fri
30Sat10:191.62:09-0.16:387:54Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

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

Slack tide in Galveston Pier 21, TX is approximately 12:01 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 19% 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 Crescent (19% 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