Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 1:32 am (0.2 ft)
Next high tide : in 5h 15m at 9:30 am (1.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Mar 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:091.05:000.99:16-0.59:160.86:446:18New Moon1Sat
2Sun2:201.05:190.99:56-0.49:370.76:436:19New Moon2Sun
3Mon3:220.95:370.810:29-0.210:130.56:426:19New Moon3Mon
4Tue4:200.95:520.811:000.010:570.46:416:20New Moon4Tue
5Wed5:190.96:020.811:290.211:430.36:406:21Waxing Crescent5Wed
6Thu6:250.86:010.812:000.46:396:21Waxing Crescent6Thu
7Fri7:440.85:480.812:310.112:330.66:386:22Waxing Crescent7Fri
8Sat9:230.85:330.81:190.01:110.86:366:23Waxing Crescent8Sat
9Sun11:190.94:540.92:07-0.11:570.96:356:23First Quarter9Sun
10Mon2:141.02:59-0.26:346:24First Quarter10Mon
11Tue3:061.13:55-0.26:336:24First Quarter11Tue
12Wed3:361.24:56-0.36:326:25First Quarter12Wed
13Thu3:451.25:57-0.36:316:26Waxing Gibbous13Thu
14Fri3:521.26:54-0.46:306:26Waxing Gibbous14Fri
15Sat4:041.27:45-0.48:241.06:286:27Waxing Gibbous15Sat
16Sun12:191.14:191.18:32-0.38:350.96:276:27Waxing Gibbous16Sun
17Mon1:521.24:331.09:17-0.29:070.76:266:28Full Moon17Mon
18Tue3:141.24:481.010:030.09:500.46:256:29Full Moon18Tue
19Wed4:301.35:011.010:500.210:380.26:246:29Full Moon19Wed
20Thu5:441.35:111.011:440.511:31-0.16:236:30Waning Gibbous20Thu
21Fri7:021.45:161.012:510.86:216:30Waning Gibbous21Fri
22Sat8:281.45:061.112:30-0.32:281.06:206:31Waning Gibbous22Sat
23Sun10:031.41:32-0.36:196:32Third Quarter23Sun
24Mon11:411.42:38-0.46:186:32Third Quarter24Mon
25Tue1:121.43:49-0.36:176:33Third Quarter25Tue
26Wed2:241.35:05-0.26:156:33Third Quarter26Wed
27Thu3:031.36:21-0.26:146:34Waning Crescent27Thu
28Fri3:241.27:28-0.18:571.06:136:35Waning Crescent28Fri
29Sat12:451.13:411.18:220.08:550.96:126:35Waning Crescent29Sat
30Sun2:001.23:571.19:060.29:080.86:116:36Waning Crescent30Sun
31Mon3:041.24:111.19:420.39:290.66:096:36New Moon31Mon
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 5:31 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 80% 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 (80% 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