Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 10:21 pm (-0.3 ft)
Next high tide : in 12m at 6:50 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 - Apr 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:221.34:511.110:430.410:270.47:087:37New Moon1Sat
2Sun5:321.44:571.111:310.711:060.17:067:38New Moon2Sun
3Mon6:401.54:591.112:290.97:057:38New Moon3Mon
4Tue7:501.64:541.21:561.17:047:39Waxing Crescent4Tue
5Wed9:051.612:41-0.37:037:39Waxing Crescent5Wed
6Thu10:311.61:38-0.37:027:40Waxing Crescent6Thu
7Fri12:031.62:43-0.37:017:41First Quarter7Fri
8Sat1:291.63:54-0.37:007:41First Quarter8Sat
9Sun2:321.55:12-0.16:587:42First Quarter9Sun
10Mon3:061.46:330.09:061.26:577:42Waxing Gibbous10Mon
11Tue3:281.37:490.18:581.16:567:43Waxing Gibbous11Tue
12Wed1:301.33:471.28:530.39:190.96:557:44Waxing Gibbous12Wed
13Thu2:551.34:041.29:470.59:460.76:547:44Waxing Gibbous13Thu
14Fri4:081.44:181.210:330.710:130.56:537:45Full Moon14Fri
15Sat5:111.44:251.111:180.910:410.36:527:45Full Moon15Sat
16Sun6:091.54:161.212:061.06:517:46Full Moon16Sun
17Mon7:021.511:420.16:507:47Full Moon17Mon
18Tue7:561.66:497:47Waning Gibbous18Tue
19Wed8:531.612:180.06:487:48Waning Gibbous19Wed
20Thu10:011.512:590.06:477:48Waning Gibbous20Thu
21Fri11:241.51:470.16:467:49Waning Gibbous21Fri
22Sat12:501.52:410.16:457:50Third Quarter22Sat
23Sun1:471.53:400.26:447:50Third Quarter23Sun
24Mon2:151.54:410.26:437:51Third Quarter24Mon
25Tue2:311.45:440.36:427:51Third Quarter25Tue
26Wed2:421.46:460.48:461.16:417:52Waning Crescent26Wed
27Thu12:371.22:521.37:460.58:410.96:407:53Waning Crescent27Thu
28Fri2:271.32:581.38:440.68:570.66:397:53Waning Crescent28Fri
29Sat3:471.53:021.29:420.89:250.36:387:54Waning Crescent29Sat
30Sun4:551.63:021.310:431.110:000.06:377:55New Moon30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 2:35 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 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