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 2h 18m 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 - Feb 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:400.96:220.711:29-0.511:460.17:085:57Waning Gibbous1Mon
2Tue6:020.86:440.712:17-0.17:075:58Waning Gibbous2Tue
3Wed7:320.77:020.712:57-0.21:040.27:065:59Waning Gibbous3Wed
4Thu9:200.77:100.72:05-0.41:510.57:065:59Third Quarter4Thu
5Fri11:280.76:410.73:10-0.52:240.77:056:00Third Quarter5Fri
6Sat3:390.84:14-0.67:046:01Third Quarter6Sat
7Sun4:190.95:19-0.67:046:02Third Quarter7Sun
8Mon4:590.96:21-0.77:036:03Waning Crescent8Mon
9Tue5:310.97:17-0.77:026:04Waning Crescent9Tue
10Wed5:310.88:04-0.67:026:04Waning Crescent10Wed
11Thu5:070.88:43-0.69:120.77:016:05Waning Crescent11Thu
12Fri12:330.85:090.79:16-0.69:110.67:006:06New Moon12Fri
13Sat1:520.75:190.79:45-0.59:420.56:596:07New Moon13Sat
14Sun2:560.75:320.710:12-0.310:220.46:586:07New Moon14Sun
15Mon3:570.75:430.710:38-0.211:070.26:576:08New Moon15Mon
16Tue4:590.65:520.711:030.011:510.16:576:09Waxing Crescent16Tue
17Wed6:060.65:560.711:300.26:566:10Waxing Crescent17Wed
18Thu7:230.65:570.712:350.011:57 AM0.46:556:10Waxing Crescent18Thu
19Fri9:010.65:550.71:19-0.212:220.66:546:11Waxing Crescent19Fri
20Sat5:430.82:06-0.36:536:12First Quarter20Sat
21Sun4:590.92:58-0.46:526:13First Quarter21Sun
22Mon5:051.03:57-0.56:516:13First Quarter22Mon
23Tue5:421.05:03-0.66:506:14First Quarter23Tue
24Wed9:141.06:09-0.76:496:15Waxing Gibbous24Wed
25Thu3:421.07:11-0.76:570.96:486:15Waxing Gibbous25Thu
26Fri3:570.98:07-0.77:480.86:476:16Waxing Gibbous26Fri
27Sat1:201.14:160.98:59-0.68:380.56:466:17Full Moon27Sat
28Sun2:461.14:350.89:48-0.49:300.36:456:17Full Moon28Sun
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