Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 1:57 pm (0.5 ft)
Next high tide : in 3h 26m at 7:27 am (1.2 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:48 am
Moon phase : Waxing Crescent (19% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Mar 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:030.87:210.812:080.412:230.17:447:18Waning Gibbous1Thu
2Fri7:040.87:270.712:560.312:520.27:437:19Waning Gibbous2Fri
3Sat8:180.77:240.71:470.21:230.47:427:19Waning Gibbous3Sat
4Sun9:510.77:160.82:370.11:560.67:417:20Waning Gibbous4Sun
5Mon11:390.87:050.83:250.02:300.87:407:21Third Quarter5Mon
6Tue5:370.94:15-0.17:397:21Third Quarter6Tue
7Wed4:441.05:08-0.27:387:22Third Quarter7Wed
8Thu3:351.16:05-0.37:367:23Third Quarter8Thu
9Fri4:041.17:04-0.47:357:23Waning Crescent9Fri
10Sat4:291.18:00-0.49:271.07:347:24Waning Crescent10Sat
11Sun4:531.18:52-0.59:060.97:337:25Waning Crescent11Sun
12Mon1:401.15:161.19:40-0.49:310.87:327:25New Moon12Mon
13Tue3:071.25:391.010:28-0.310:100.67:317:26New Moon13Tue
14Wed4:261.26:011.011:16-0.110:580.47:307:26New Moon14Wed
15Thu5:391.36:221.012:070.17:287:27New Moon15Thu
16Fri6:531.36:410.91:020.47:277:28Waxing Crescent16Fri
17Sat8:121.36:581.012:500.02:070.77:267:28Waxing Crescent17Sat
18Sun9:391.37:091.01:52-0.23:280.97:257:29Waxing Crescent18Sun
19Mon11:151.32:57-0.37:247:29First Quarter19Mon
20Tue12:481.34:04-0.37:237:30First Quarter20Tue
21Wed2:101.35:15-0.27:217:31First Quarter21Wed
22Thu3:151.36:28-0.27:207:31Waxing Gibbous22Thu
23Fri3:591.27:39-0.110:211.07:197:32Waxing Gibbous23Fri
24Sat12:361.04:271.28:390.010:031.07:187:32Waxing Gibbous24Sat
25Sun1:581.14:501.19:280.010:030.97:177:33Waxing Gibbous25Sun
26Mon3:031.15:091.110:070.110:140.87:157:33Full Moon26Mon
27Tue4:001.15:251.010:390.310:350.67:147:34Full Moon27Tue
28Wed4:531.25:391.011:080.411:030.57:137:35Full Moon28Wed
29Thu5:441.25:471.011:360.611:360.47:127:35Full Moon29Thu
30Fri6:361.25:481.012:080.77:117:36Full Moon30Fri
31Sat7:321.25:441.012:120.312:460.97:097:36Waning Gibbous31Sat
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 10:42 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 19% 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 Crescent (19% 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