Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 1h 08m at 10:37 pm (-0.4 ft)
Next high tide (tomorrow) : 7:38 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:22 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2044

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:391.612:19-0.37:077:37Waxing Crescent1Fri
2Sat10:001.61:12-0.37:067:38Waxing Crescent2Sat
3Sun11:331.62:13-0.47:057:39First Quarter3Sun
4Mon1:111.53:22-0.37:047:39First Quarter4Mon
5Tue2:281.54:37-0.27:027:40First Quarter5Tue
6Wed2:551.45:57-0.17:017:40First Quarter6Wed
7Thu3:131.37:160.08:281.17:007:41Waxing Gibbous7Thu
8Fri12:471.33:301.28:260.28:520.96:597:42Waxing Gibbous8Fri
9Sat2:251.33:471.29:250.49:240.76:587:42Waxing Gibbous9Sat
10Sun3:451.44:021.110:180.69:570.46:577:43Full Moon10Sun
11Mon4:551.44:131.111:080.810:290.26:567:43Full Moon11Mon
12Tue5:561.54:121.112:031.06:557:44Full Moon12Tue
13Wed6:521.63:321.21:251.26:537:44Full Moon13Wed
14Thu7:461.66:527:45Waning Gibbous14Thu
15Fri8:441.612:120.06:517:46Waning Gibbous15Fri
16Sat9:511.512:540.06:507:46Waning Gibbous16Sat
17Sun11:191.51:430.06:497:47Waning Gibbous17Sun
18Mon1:161.52:380.16:487:47Third Quarter18Mon
19Tue2:141.53:370.26:477:48Third Quarter19Tue
20Wed2:221.44:390.26:467:49Third Quarter20Wed
21Thu2:291.45:400.36:457:49Third Quarter21Thu
22Fri2:371.36:410.48:441.16:447:50Waning Crescent22Fri
23Sat12:321.12:441.37:390.58:410.96:437:50Waning Crescent23Sat
24Sun2:221.22:481.28:350.78:560.66:427:51Waning Crescent24Sun
25Mon3:401.42:501.29:300.99:190.36:417:52Waning Crescent25Mon
26Tue4:461.62:471.210:291.19:490.16:407:52New Moon26Tue
27Wed5:441.72:411.311:381.210:25-0.26:397:53New Moon27Wed
28Thu6:411.811:08-0.36:397:54New Moon28Thu
29Fri7:391.911:58-0.46:387:54Waxing Crescent29Fri
30Sat8:431.96:377:55Waxing Crescent30Sat
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 3:07 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 100% 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 (100% 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