Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 4:55 pm (0.8 ft)
Next high tide : in 5h 41m at 10:31 am (1.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:241.34:191.110:410.610:160.37:087:37New Moon1Mon
2Tue5:201.34:331.111:190.710:450.27:077:38New Moon2Tue
3Wed6:111.44:391.111:550.911:160.17:057:38New Moon3Wed
4Thu7:001.44:341.112:331.07:047:39New Moon4Thu
5Fri7:511.44:291.21:191.17:037:39Waxing Crescent5Fri
6Sat8:471.44:311.212:300.12:231.27:027:40Waxing Crescent6Sat
7Sun9:531.31:140.17:017:41Waxing Crescent7Sun
8Mon11:121.32:040.17:007:41Waxing Crescent8Mon
9Tue12:271.32:580.16:597:42First Quarter9Tue
10Wed1:171.33:540.26:577:42First Quarter10Wed
11Thu1:481.34:530.26:567:43First Quarter11Thu
12Fri2:101.35:560.38:061.16:557:44First Quarter12Fri
13Sat2:281.26:590.48:120.96:547:44Waxing Gibbous13Sat
14Sun1:241.22:421.28:000.58:310.76:537:45Waxing Gibbous14Sun
15Mon2:471.32:551.28:570.78:580.46:527:45Waxing Gibbous15Mon
16Tue3:571.53:081.29:510.89:320.26:517:46Full Moon16Tue
17Wed4:591.63:211.210:431.010:12-0.16:507:46Full Moon17Wed
18Thu5:571.73:361.311:371.210:57-0.26:497:47Full Moon18Thu
19Fri6:551.83:551.412:351.36:487:48Full Moon19Fri
20Sat7:541.84:201.41:481.46:477:48Waning Gibbous20Sat
21Sun8:591.712:43-0.36:467:49Waning Gibbous21Sun
22Mon10:081.61:45-0.26:457:50Waning Gibbous22Mon
23Tue11:161.52:53-0.16:447:50Third Quarter23Tue
24Wed12:121.54:030.16:271.26:437:51Third Quarter24Wed
25Thu12:551.45:160.37:141.16:427:51Third Quarter25Thu
26Fri1:291.36:320.57:530.96:417:52Waning Crescent26Fri
27Sat1:201.21:571.37:480.78:270.76:407:53Waning Crescent27Sat
28Sun2:431.32:211.28:570.98:570.56:397:53Waning Crescent28Sun
29Mon3:541.42:381.29:581.09:240.36:387:54Waning Crescent29Mon
30Tue4:521.52:451.210:541.19:500.26:377:54New Moon30Tue
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 1:43 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 transitional phase. Tonight's moon is 38% 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 First Quarter (38% 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