Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 11:13 pm (-0.3 ft)
Next high tide : in 2h 28m at 7:38 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:23 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Aug 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:011.58:17-0.26:398:11Waxing Gibbous1Sat
2Sun6:361.58:59-0.26:408:10Waxing Gibbous2Sun
3Mon6:421.49:36-0.26:408:09Waxing Gibbous3Mon
4Tue6:271.410:10-0.16:418:09Full Moon4Tue
5Wed6:321.31:231.310:311.210:40-0.16:428:08Full Moon5Wed
6Thu6:441.32:541.211:151.111:070.16:428:07Full Moon6Thu
7Fri6:581.34:221.112:141.06:438:06Full Moon7Fri
8Sat7:121.35:461.01:090.96:438:05Waning Gibbous8Sat
9Sun7:221.27:141.012:000.41:530.76:448:04Waning Gibbous9Sun
10Mon7:261.28:581.012:280.62:310.56:448:04Waning Gibbous10Mon
11Tue7:241.211:031.112:570.93:080.36:458:03Waning Gibbous11Tue
12Wed7:161.31:281.13:480.16:468:02Third Quarter12Wed
13Thu6:451.44:350.06:468:01Third Quarter13Thu
14Fri5:291.55:29-0.26:478:00Third Quarter14Fri
15Sat5:461.66:29-0.36:477:59Waning Crescent15Sat
16Sun6:191.67:30-0.46:487:58Waning Crescent16Sun
17Mon4:491.610:28 AM1.68:281.68:28-0.46:487:57Waning Crescent17Mon
18Tue5:051.612:421.68:181.59:22-0.36:497:56Waning Crescent18Tue
19Wed5:251.52:221.69:071.310:13-0.26:497:55New Moon19Wed
20Thu5:461.43:531.610:021.111:010.16:507:54New Moon20Thu
21Fri6:071.45:161.511:000.911:470.46:517:53New Moon21Fri
22Sat6:271.36:371.512:010.66:517:52Waxing Crescent22Sat
23Sun6:451.38:021.412:340.71:050.46:527:51Waxing Crescent23Sun
24Mon6:561.39:401.41:251.02:070.36:527:50Waxing Crescent24Mon
25Tue6:491.411:451.52:311.33:060.16:537:49First Quarter25Tue
26Wed4:040.16:537:47First Quarter26Wed
27Thu2:571.65:020.16:547:46First Quarter27Thu
28Fri4:051.66:020.16:547:45First Quarter28Fri
29Sat4:581.67:000.16:557:44Waxing Gibbous29Sat
30Sun5:381.67:530.16:557:43Waxing Gibbous30Sun
31Mon5:461.68:370.26:567:42Waxing Gibbous31Mon
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 3:25 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 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