Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 6h 42m at 8:19 pm (-0.3 ft)
Next high tide (tomorrow) : 5:59 am (1.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:21 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:461.56:191.512:020.96:567:41Waxing Crescent1Wed
2Thu7:051.47:441.512:240.61:010.76:577:40Waxing Crescent2Thu
3Fri7:211.49:191.51:180.92:040.56:577:38Waxing Crescent3Fri
4Sat7:311.411:021.62:261.23:060.36:587:37First Quarter4Sat
5Sun7:271.54:151.44:090.16:597:36First Quarter5Sun
6Mon12:401.75:130.16:597:35First Quarter6Mon
7Tue2:021.86:190.07:007:34First Quarter7Tue
8Wed3:061.87:230.17:007:32Waxing Gibbous8Wed
9Thu3:541.88:220.17:017:31Waxing Gibbous9Thu
10Fri4:281.71:131.510:271.59:130.27:017:30Waxing Gibbous10Fri
11Sat4:561.72:321.610:201.49:570.37:027:29Full Moon11Sat
12Sun5:211.63:381.510:281.310:340.57:027:28Full Moon12Sun
13Mon5:431.64:371.510:481.211:060.67:037:26Full Moon13Mon
14Tue6:031.55:351.511:181.111:350.87:037:25Full Moon14Tue
15Wed6:181.56:341.511:550.97:047:24Waning Gibbous15Wed
16Thu6:271.57:401.512:041.012:360.87:047:23Waning Gibbous16Thu
17Fri6:241.58:571.512:361.21:220.77:057:21Waning Gibbous17Fri
18Sat6:141.510:321.61:161.42:090.67:057:20Waning Gibbous18Sat
19Sun6:011.52:301.52:580.57:067:19Third Quarter19Sun
20Mon12:151.63:490.57:067:18Third Quarter20Mon
21Tue1:341.74:430.47:077:17Third Quarter21Tue
22Wed2:261.85:390.47:077:15Third Quarter22Wed
23Thu3:031.86:370.47:087:14Waning Crescent23Thu
24Fri3:321.87:320.47:087:13Waning Crescent24Fri
25Sat3:561.811:58 AM1.69:381.68:220.47:097:12Waning Crescent25Sat
26Sun4:171.81:441.79:261.59:100.47:097:10Waning Crescent26Sun
27Mon4:371.73:101.79:401.39:550.67:107:09New Moon27Mon
28Tue4:561.74:271.810:091.110:400.87:107:08New Moon28Tue
29Wed5:131.65:391.910:480.811:281.07:117:07New Moon29Wed
30Thu5:291.66:511.911:350.67:127:06Waxing Crescent30Thu
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 1:09 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 84% 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 Waxing Gibbous (84% 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