Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 14h 44m at 10:21 pm (-0.3 ft)
Next high tide (tomorrow) : 7:01 am (1.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:37 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:331.67:200.16:567:42Waning Crescent1Mon
2Tue3:511.611:34 AM1.58:301.58:120.16:567:40Waning Crescent2Tue
3Wed4:121.61:161.68:391.49:010.16:577:39Waning Crescent3Wed
4Thu4:331.62:451.69:121.29:480.36:587:38New Moon4Thu
5Fri4:551.54:061.79:541.010:330.56:587:37New Moon5Fri
6Sat5:171.55:211.710:410.711:200.76:597:36New Moon6Sat
7Sun5:391.56:341.711:330.56:597:34Waxing Crescent7Sun
8Mon6:001.57:491.712:081.012:310.37:007:33Waxing Crescent8Mon
9Tue6:211.59:121.71:011.21:340.27:007:32Waxing Crescent9Tue
10Wed6:381.610:471.72:071.42:400.27:017:31First Quarter10Wed
11Thu6:471.63:511.63:460.27:017:30First Quarter11Thu
12Fri12:281.74:540.27:027:28First Quarter12Fri
13Sat1:571.76:020.37:027:27First Quarter13Sat
14Sun2:531.77:070.37:037:26Waxing Gibbous14Sun
15Mon3:251.612:051.510:011.58:030.47:037:25Waxing Gibbous15Mon
16Tue3:481.61:301.59:451.48:500.57:047:24Waxing Gibbous16Tue
17Wed4:071.62:381.59:461.39:270.77:047:22Waxing Gibbous17Wed
18Thu4:251.53:381.59:581.29:580.87:057:21Full Moon18Thu
19Fri4:411.54:331.510:171.010:250.97:057:20Full Moon19Fri
20Sat4:541.55:261.610:430.910:501.17:067:19Full Moon20Sat
21Sun5:031.56:171.611:130.811:151.27:067:17Full Moon21Sun
22Mon5:091.67:111.611:470.711:421.37:077:16Waning Gibbous22Mon
23Tue5:131.68:111.612:250.67:077:15Waning Gibbous23Tue
24Wed5:191.69:221.612:111.51:080.57:087:14Waning Gibbous24Wed
25Thu5:231.610:521.712:411.61:540.57:087:12Waning Gibbous25Thu
26Fri3:251.71:151.72:460.57:097:11Third Quarter26Fri
27Sat2:561.73:410.47:097:10Third Quarter27Sat
28Sun1:281.84:400.47:107:09Third Quarter28Sun
29Mon1:581.85:430.47:117:08Third Quarter29Mon
30Tue2:221.86:470.57:117:06Waning Crescent30Tue
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 2:41 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 99% 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 Full Moon (99% 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