Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 5:13 pm (-0.2 ft)
Next high tide (tomorrow) : in 10h 28m at 6:30 am (1.3 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:41 am
Moon phase : Third Quarter (54% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Nov 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:561.71:430.47:326:32Waning Gibbous1Thu
2Fri11:541.72:310.47:336:32Third Quarter2Fri
3Sat3:240.57:336:31Third Quarter3Sat
4Sun12:361.73:220.56:345:30Third Quarter4Sun
5Mon12:081.74:260.66:355:29Third Quarter5Mon
6Tue12:341.611:15 AM1.37:111.25:360.76:365:29Waning Crescent6Tue
7Wed12:571.612:541.47:171.06:450.86:365:28Waning Crescent7Wed
8Thu1:191.62:111.67:390.77:471.06:375:28Waning Crescent8Thu
9Fri1:401.53:171.78:110.48:421.16:385:27New Moon9Fri
10Sat2:011.54:171.98:490.29:331.36:395:26New Moon10Sat
11Sun2:241.65:151.99:320.010:241.46:405:26New Moon11Sun
12Mon2:491.66:121.910:18-0.211:201.56:405:25Waxing Crescent12Mon
13Tue3:161.67:111.911:08-0.26:415:25Waxing Crescent13Tue
14Wed3:421.68:151.812:481.612:03-0.16:425:24Waxing Crescent14Wed
15Thu9:221.71:030.06:435:24Waxing Crescent15Thu
16Fri10:241.62:040.26:445:23First Quarter16Fri
17Sat11:141.53:080.36:445:23First Quarter17Sat
18Sun11:541.54:140.56:455:22First Quarter18Sun
19Mon11:261.17:211.05:240.76:465:22First Quarter19Mon
20Tue12:261.412:561.27:360.86:330.86:475:22Waxing Gibbous20Tue
21Wed12:521.42:101.27:540.67:331.06:485:21Waxing Gibbous21Wed
22Thu1:131.33:111.38:130.48:211.16:485:21Waxing Gibbous22Thu
23Fri1:261.33:591.48:330.39:001.16:495:21Waxing Gibbous23Fri
24Sat1:291.34:411.48:560.29:321.26:505:21Full Moon24Sat
25Sun1:261.35:191.59:210.010:031.36:515:21Full Moon25Sun
26Mon1:331.35:571.59:490.010:391.36:525:20Full Moon26Mon
27Tue1:481.36:381.510:19-0.111:471.36:525:20Full Moon27Tue
28Wed1:561.37:231.510:52-0.16:535:20Waning Gibbous28Wed
29Thu8:141.511:28-0.16:545:20Waning Gibbous29Thu
30Fri9:071.412:07-0.16:555:20Waning Gibbous30Fri
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 11:51 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 neap phase. Tonight's moon is 54% 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 minimum.

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 Third Quarter (54% illuminated). This places Galveston Pier 21, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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