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 7h 42m 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 - Sep 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri3:471.612:531.59:191.48:420.26:567:41Waning Crescent1Fri
2Sat4:191.52:061.59:421.39:270.36:577:40Waning Crescent2Sat
3Sun4:471.53:111.510:051.210:050.46:577:39New Moon3Sun
4Mon5:121.54:101.510:301.110:360.66:587:37New Moon4Mon
5Tue5:341.55:051.410:591.011:020.76:587:36New Moon5Tue
6Wed5:541.45:591.411:330.911:270.96:597:35New Moon6Wed
7Thu6:091.46:551.412:110.86:597:34Waxing Crescent7Thu
8Fri6:171.47:571.412:550.77:007:33Waxing Crescent8Fri
9Sat6:171.49:111.412:191.21:430.67:017:31Waxing Crescent9Sat
10Sun6:181.510:431.412:481.32:330.57:017:30Waxing Crescent10Sun
11Mon6:231.51:201.43:250.57:027:29First Quarter11Mon
12Tue6:201.54:180.57:027:28First Quarter12Tue
13Wed4:061.65:110.47:037:27First Quarter13Wed
14Thu2:191.66:060.47:037:25First Quarter14Thu
15Fri2:471.77:000.47:047:24Waxing Gibbous15Fri
16Sat3:111.711:23 AM1.58:461.57:510.47:047:23Waxing Gibbous16Sat
17Sun3:341.71:111.68:451.48:380.57:057:22Waxing Gibbous17Sun
18Mon3:561.62:361.69:041.29:240.67:057:20Waxing Gibbous18Mon
19Tue4:181.63:521.79:351.010:080.77:067:19Full Moon19Tue
20Wed4:401.65:011.810:140.810:520.97:067:18Full Moon20Wed
21Thu5:021.66:081.810:590.611:391.17:077:17Full Moon21Thu
22Fri5:241.67:161.911:490.47:077:15Waning Gibbous22Fri
23Sat5:481.78:291.912:301.312:460.37:087:14Waning Gibbous23Sat
24Sun6:121.79:511.81:331.51:490.37:087:13Waning Gibbous24Sun
25Mon6:381.711:171.83:031.62:560.37:097:12Third Quarter25Mon
26Tue7:031.74:501.74:050.37:097:11Third Quarter26Tue
27Wed12:361.85:160.47:107:09Third Quarter27Wed
28Thu1:361.86:260.57:107:08Third Quarter28Thu
29Fri2:211.812:031.68:381.57:330.67:117:07Waning Crescent29Fri
30Sat2:561.71:281.69:021.48:290.77:117:06Waning Crescent30Sat
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