Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 17m at 11:53 pm (0.1 ft)
Next high tide : 7:49 am (1.3 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Nov 2084

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:201.912:32-0.17:326:32Waxing Crescent1Wed
2Thu10:371.91:290.07:336:31Waxing Crescent2Thu
3Fri11:431.82:320.17:346:30First Quarter3Fri
4Sat3:390.27:356:30First Quarter4Sat
5Sun12:201.711:461.63:490.46:355:29First Quarter5Sun
6Mon10:081.46:091.35:050.76:365:28First Quarter6Mon
7Tue12:091.512:151.46:361.06:250.96:375:28Waxing Gibbous7Tue
8Wed12:301.51:481.67:110.77:421.16:385:27Waxing Gibbous8Wed
9Thu12:481.53:041.77:460.48:531.36:395:26Waxing Gibbous9Thu
10Fri1:011.54:071.88:200.210:011.46:395:26Full Moon10Fri
11Sat1:031.55:001.88:540.06:405:25Full Moon11Sat
12Sun5:471.89:29-0.16:415:25Full Moon12Sun
13Mon6:331.810:04-0.16:425:24Full Moon13Mon
14Tue7:241.710:41-0.16:435:24Waning Gibbous14Tue
15Wed8:241.611:210.06:435:23Waning Gibbous15Wed
16Thu12:050.16:445:23Waning Gibbous16Thu
17Fri12:031.610:441.512:500.26:455:23Waning Gibbous17Fri
18Sat11:061.51:360.36:465:22Third Quarter18Sat
19Sun11:221.42:210.46:475:22Third Quarter19Sun
20Mon11:341.43:060.66:475:22Third Quarter20Mon
21Tue10:501.011:411.36:470.93:560.86:485:21Third Quarter21Tue
22Wed12:521.16:450.75:040.96:495:21Waning Crescent22Wed
23Thu2:111.27:020.46:381.16:505:21Waning Crescent23Thu
24Fri3:091.47:240.28:041.26:515:21Waning Crescent24Fri
25Sat3:561.67:51-0.19:111.36:515:20Waning Crescent25Sat
26Sun4:401.78:23-0.36:525:20New Moon26Sun
27Mon5:251.79:00-0.56:535:20New Moon27Mon
28Tue6:121.79:42-0.69:531.56:545:20New Moon28Tue
29Wed12:461.67:021.610:29-0.610:091.56:555:20Waxing Crescent29Wed
30Thu1:441.67:551.511:21-0.510:471.56:555:20Waxing 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 3:51 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 96% 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 (96% 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