Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, August 8, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 7:10 pm (-0.5 ft)
Next high tide : in 4h 41m at 4:18 am (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:43 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:101.46:11-0.17:077:38First Quarter1Sun
2Mon3:451.37:280.09:431.17:057:38Waxing Gibbous2Mon
3Tue12:381.24:081.28:340.19:371.07:047:39Waxing Gibbous3Tue
4Wed2:081.24:271.29:270.29:490.97:037:39Waxing Gibbous4Wed
5Thu3:191.24:431.110:100.410:090.77:027:40Waxing Gibbous5Thu
6Fri4:221.34:561.110:460.510:320.67:017:41Full Moon6Fri
7Sat5:191.35:031.111:170.710:590.47:007:41Full Moon7Sat
8Sun6:131.34:581.111:500.911:290.36:597:42Full Moon8Sun
9Mon7:061.44:371.112:321.06:577:42Full Moon9Mon
10Tue8:011.44:091.212:030.21:511.26:567:43Waning Gibbous10Tue
11Wed9:031.412:400.16:557:44Waning Gibbous11Wed
12Thu10:151.51:220.16:547:44Waning Gibbous12Thu
13Fri11:381.52:100.16:537:45Waning Gibbous13Fri
14Sat12:561.53:030.16:527:45Third Quarter14Sat
15Sun1:541.54:020.16:517:46Third Quarter15Sun
16Mon2:301.55:060.16:507:47Third Quarter16Mon
17Tue2:521.46:120.26:497:47Third Quarter17Tue
18Wed3:091.47:180.28:391.16:487:48Waning Crescent18Wed
19Thu1:001.33:241.38:190.38:440.96:477:48Waning Crescent19Thu
20Fri2:421.43:361.39:160.59:120.66:467:49Waning Crescent20Fri
21Sat4:031.53:481.210:120.79:490.36:457:50New Moon21Sat
22Sun5:141.73:571.211:110.910:300.06:447:50New Moon22Sun
23Mon6:201.84:031.312:221.26:437:51New Moon23Mon
24Tue7:251.96:427:51Waxing Crescent24Tue
25Wed8:331.912:08-0.36:417:52Waxing Crescent25Wed
26Thu9:471.81:06-0.36:407:53Waxing Crescent26Thu
27Fri11:071.72:09-0.26:397:53First Quarter27Fri
28Sat12:221.63:17-0.16:387:54First Quarter28Sat
29Sun1:191.54:290.16:377:55First Quarter29Sun
30Mon1:591.55:450.28:581.26:367:55First Quarter30Mon
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 11:44 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 transitional phase. Tonight's moon is 32% 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 shifting between spring and neap.

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 (32% illuminated). This places Galveston Pier 21, TX in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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