Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 5h 52m at 5:13 pm (-0.2 ft)
Next high tide (tomorrow) : 4:50 am (1.5 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:541.32:160.17:077:38Waxing Crescent1Wed
2Thu12:171.33:090.17:067:38First Quarter2Thu
3Fri1:281.34:060.17:057:39First Quarter3Fri
4Sat2:201.35:080.27:037:39First Quarter4Sat
5Sun2:571.36:130.27:027:40First Quarter5Sun
6Mon3:241.37:150.29:121.17:017:40Waxing Gibbous6Mon
7Tue12:121.13:461.38:090.39:161.07:007:41Waxing Gibbous7Tue
8Wed1:521.14:051.28:550.39:320.86:597:42Waxing Gibbous8Wed
9Thu3:041.24:211.29:370.49:530.76:587:42Waxing Gibbous9Thu
10Fri4:071.34:361.210:170.510:190.56:577:43Full Moon10Fri
11Sat5:061.44:481.210:570.710:500.36:567:43Full Moon11Sat
12Sun6:031.54:591.211:430.911:270.16:547:44Full Moon12Sun
13Mon7:021.65:081.212:391.06:537:45Waning Gibbous13Mon
14Tue8:051.65:131.312:100.02:041.26:527:45Waning Gibbous14Tue
15Wed9:151.61:01-0.16:517:46Waning Gibbous15Wed
16Thu10:311.61:59-0.16:507:46Waning Gibbous16Thu
17Fri11:451.63:03-0.16:497:47Third Quarter17Fri
18Sat12:491.54:120.06:487:48Third Quarter18Sat
19Sun1:391.55:270.18:251.26:477:48Third Quarter19Sun
20Mon2:201.46:450.28:261.16:467:49Waning Crescent20Mon
21Tue12:561.32:541.47:580.38:490.96:457:49Waning Crescent21Tue
22Wed2:241.33:231.39:030.59:180.76:447:50Waning Crescent22Wed
23Thu3:371.43:491.39:590.79:490.56:437:51Waning Crescent23Thu
24Fri4:421.54:101.210:500.810:200.36:427:51New Moon24Fri
25Sat5:401.64:251.211:411.010:530.26:417:52New Moon25Sat
26Sun6:331.64:281.212:381.16:407:52New Moon26Sun
27Mon7:251.64:041.21:581.26:397:53Waxing Crescent27Mon
28Tue8:191.612:020.16:387:54Waxing Crescent28Tue
29Wed9:191.612:420.16:387:54Waxing Crescent29Wed
30Thu10:241.51:270.16:377:55Waxing 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 11:01 pm — 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 43% 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 (43% 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