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 13h 40m 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 - Aug 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:281.36:21-0.16:398:11Third Quarter1Fri
2Sat6:281.37:05-0.26:398:11Waning Crescent2Sat
3Sun4:311.47:50-0.36:408:10Waning Crescent3Sun
4Mon4:441.48:34-0.36:408:09Waning Crescent4Mon
5Tue5:061.412:331.49:081.39:18-0.36:418:08Waning Crescent5Tue
6Wed5:301.41:571.49:301.310:01-0.36:428:08New Moon6Wed
7Thu5:541.43:211.410:101.110:45-0.26:428:07New Moon7Thu
8Fri6:191.44:441.411:000.911:300.16:438:06New Moon8Fri
9Sat6:441.36:051.312:000.76:438:05Waxing Crescent9Sat
10Sun7:081.37:291.312:160.31:070.56:448:04Waxing Crescent10Sun
11Mon7:321.39:031.31:060.62:140.36:448:03Waxing Crescent11Mon
12Tue7:531.310:491.32:000.93:190.16:458:02First Quarter12Tue
13Wed8:111.33:021.14:220.06:468:01First Quarter13Wed
14Thu12:371.48:17 AM1.34:441.35:25-0.16:468:01First Quarter14Thu
15Fri2:201.46:28-0.16:478:00First Quarter15Fri
16Sat3:451.57:28-0.16:477:59Waxing Gibbous16Sat
17Sun4:271.58:21-0.16:487:58Waxing Gibbous17Sun
18Mon4:491.59:070.06:487:57Waxing Gibbous18Mon
19Tue5:071.41:501.310:261.39:450.16:497:56Waxing Gibbous19Tue
20Wed5:261.42:551.310:261.210:170.26:507:55Full Moon20Wed
21Thu5:451.43:551.310:421.110:450.36:507:54Full Moon21Thu
22Fri6:041.34:531.211:121.011:110.56:517:53Full Moon22Fri
23Sat6:201.35:521.211:500.811:360.66:517:52Full Moon23Sat
24Sun6:331.36:551.212:350.76:527:50Waning Gibbous24Sun
25Mon6:421.38:071.212:010.81:240.66:527:49Waning Gibbous25Mon
26Tue6:461.39:381.212:281.02:120.56:537:48Waning Gibbous26Tue
27Wed6:511.412:551.13:000.46:537:47Waning Gibbous27Wed
28Thu6:561.43:480.36:547:46Third Quarter28Thu
29Fri6:521.44:380.26:547:45Third Quarter29Fri
30Sat5:181.55:310.26:557:44Third Quarter30Sat
31Sun5:031.66:250.16:557:43Third Quarter31Sun
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