Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 8:29 pm (-0.3 ft)
Next high tide : in 1h 58m at 6:19 am (1.5 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:531.84:120.57:127:04Third Quarter1Tue
2Wed1:581.85:120.57:137:03Third Quarter2Wed
3Thu2:411.86:130.67:137:02Third Quarter3Thu
4Fri3:111.87:100.67:147:01Waning Crescent4Fri
5Sat3:341.88:000.67:147:00Waning Crescent5Sat
6Sun3:531.81:251.59:391.48:430.77:156:58Waning Crescent6Sun
7Mon4:101.72:461.69:481.39:210.87:156:57Waning Crescent7Mon
8Tue4:251.73:531.610:061.29:570.97:166:56New Moon8Tue
9Wed4:381.74:541.710:291.010:321.17:176:55New Moon9Wed
10Thu4:481.75:541.810:560.811:101.27:176:54New Moon10Thu
11Fri4:561.66:551.911:290.611:521.47:186:53New Moon11Fri
12Sat5:011.68:011.912:090.47:186:52Waxing Crescent12Sat
13Sun4:591.79:151.912:451.612:560.37:196:51Waxing Crescent13Sun
14Mon10:382.01:510.27:206:50Waxing Crescent14Mon
15Tue11:592.02:530.27:206:48First Quarter15Tue
16Wed4:010.27:216:47First Quarter16Wed
17Thu1:032.05:130.37:226:46First Quarter17Thu
18Fri1:501.96:280.47:226:45Waxing Gibbous18Fri
19Sat2:271.812:111.68:511.57:380.57:236:44Waxing Gibbous19Sat
20Sun2:571.81:541.68:571.38:410.77:236:43Waxing Gibbous20Sun
21Mon3:241.73:141.79:201.19:350.97:246:42Waxing Gibbous21Mon
22Tue3:481.74:241.89:490.910:231.17:256:41Full Moon22Tue
23Wed4:091.65:261.810:210.711:081.37:256:40Full Moon23Wed
24Thu4:241.66:241.910:540.511:541.47:266:39Full Moon24Thu
25Fri4:291.67:211.911:280.47:276:39Full Moon25Fri
26Sat4:111.68:201.912:551.612:040.37:286:38Waning Gibbous26Sat
27Sun9:271.812:440.37:286:37Waning Gibbous27Sun
28Mon10:481.81:280.47:296:36Waning Gibbous28Mon
29Tue2:180.47:306:35Waning Gibbous29Tue
30Wed12:081.83:120.57:306:34Third Quarter30Wed
31Thu1:031.84:100.57:316:33Third Quarter31Thu
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 1:24 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 86% 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 Waxing Gibbous (86% 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