Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 12h 35m at 10:21 pm (-0.3 ft)
Next high tide (tomorrow) : 7:01 am (1.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:37 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:001.96:208:14Waxing Crescent1Thu
2Fri9:011.812:11-0.66:198:14Waxing Crescent2Fri
3Sat10:051.61:12-0.46:198:15Waxing Crescent3Sat
4Sun11:001.52:17-0.26:198:15First Quarter4Sun
5Mon11:391.48:311.13:220.06:111.16:198:16First Quarter5Mon
6Tue12:071.34:250.36:440.86:198:16First Quarter6Tue
7Wed12:291.25:310.67:200.66:198:17First Quarter7Wed
8Thu1:251.112:441.26:510.87:520.36:198:17Waxing Gibbous8Thu
9Fri3:071.212:461.28:401.18:220.16:198:18Waxing Gibbous9Fri
10Sat4:311.48:49-0.16:198:18Waxing Gibbous10Sat
11Sun5:291.59:16-0.26:198:18Waxing Gibbous11Sun
12Mon6:071.69:45-0.36:198:19Full Moon12Mon
13Tue6:401.610:16-0.36:198:19Full Moon13Tue
14Wed7:121.610:50-0.36:198:19Full Moon14Wed
15Thu7:491.511:26-0.36:198:20Full Moon15Thu
16Fri8:331.56:198:20Waning Gibbous16Fri
17Sat9:221.512:06-0.26:198:20Waning Gibbous17Sat
18Sun10:091.412:47-0.26:198:21Waning Gibbous18Sun
19Mon10:421.41:29-0.16:208:21Waning Gibbous19Mon
20Tue11:031.32:110.16:208:21Third Quarter20Tue
21Wed11:161.39:420.82:540.36:370.86:208:21Third Quarter21Wed
22Thu11:211.23:410.56:270.56:208:22Third Quarter22Thu
23Fri12:390.911:17 AM1.14:410.86:420.26:218:22Third Quarter23Fri
24Sat2:171.211:06 AM1.26:151.07:12-0.16:218:22Waning Crescent24Sat
25Sun3:311.47:51-0.46:218:22Waning Crescent25Sun
26Mon4:311.68:35-0.76:218:22Waning Crescent26Mon
27Tue5:231.79:24-0.86:228:22New Moon27Tue
28Wed6:121.710:15-0.96:228:22New Moon28Wed
29Thu7:011.711:09-0.86:228:22New Moon29Thu
30Fri7:501.62:071.511:411.56:238:22Waxing Crescent30Fri
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 2:41 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 99% 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 (99% 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