Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 15m at 12:24 am (0.3 ft)
Next high tide : 8:00 am (1.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Mar 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:150.95:540.711:280.111:380.26:446:18Waxing Crescent1Fri
2Sat6:240.85:540.711:590.46:436:19Waxing Crescent2Sat
3Sun7:430.85:360.812:250.012:300.66:426:20Waxing Crescent3Sun
4Mon9:230.85:110.81:12-0.11:000.86:406:20Waxing Crescent4Mon
5Tue4:130.92:00-0.26:396:21First Quarter5Tue
6Wed3:031.02:52-0.26:386:22First Quarter6Wed
7Thu3:391.13:49-0.36:376:22First Quarter7Thu
8Fri4:151.14:52-0.36:366:23First Quarter8Fri
9Sat4:391.15:55-0.36:356:24Waxing Gibbous9Sat
10Sun4:271.16:52-0.46:346:24Waxing Gibbous10Sun
11Mon4:181.17:42-0.48:401.06:336:25Waxing Gibbous11Mon
12Tue4:231.18:25-0.38:400.96:316:25Waxing Gibbous12Tue
13Wed1:241.14:321.09:06-0.39:040.76:306:26Full Moon13Wed
14Thu2:501.14:421.09:47-0.19:400.56:296:27Full Moon14Thu
15Fri4:071.24:500.910:300.210:220.26:286:27Full Moon15Fri
16Sat5:211.24:550.911:170.511:10-0.16:276:28Waning Gibbous16Sat
17Sun6:371.34:551.012:150.86:266:28Waning Gibbous17Sun
18Mon8:001.34:431.112:03-0.31:411.06:246:29Waning Gibbous18Mon
19Tue9:341.41:02-0.46:236:30Third Quarter19Tue
20Wed11:161.42:06-0.56:226:30Third Quarter20Wed
21Thu1:101.43:16-0.46:216:31Third Quarter21Thu
22Fri3:101.44:32-0.46:206:31Third Quarter22Fri
23Sat3:291.35:51-0.36:186:32Waning Crescent23Sat
24Sun3:271.27:04-0.28:381.16:176:33Waning Crescent24Sun
25Mon12:031.23:361.18:04-0.18:371.06:166:33Waning Crescent25Mon
26Tue1:331.23:491.18:540.18:560.86:156:34Waning Crescent26Tue
27Wed2:461.24:031.09:350.29:220.66:146:34New Moon27Wed
28Thu3:511.24:141.010:110.59:510.46:136:35New Moon28Thu
29Fri4:501.24:191.010:460.710:220.36:116:35New Moon29Fri
30Sat5:481.34:101.011:240.810:550.16:106:36New Moon30Sat
31Sun6:461.33:461.112:161.06:096:37Waxing Crescent31Sun
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 4:12 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 84% 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 Waning Gibbous (84% 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