Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 12:57 am (0.5 ft)
Next high tide : in 2h 31m at 7:25 pm (0.9 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 - Dec 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:141.611:42-0.46:555:20Waning Gibbous1Thu
2Fri10:191.512:34-0.36:565:20Waning Gibbous2Fri
3Sat10:551.41:30-0.26:575:20Third Quarter3Sat
4Sun11:171.32:290.06:585:20Third Quarter4Sun
5Mon11:351.23:320.26:585:20Third Quarter5Mon
6Tue10:590.911:501.16:120.74:470.56:595:20Third Quarter6Tue
7Wed12:571.16:330.46:210.77:005:20Waning Crescent7Wed
8Thu12:021.12:251.37:060.08:001.07:015:21Waning Crescent8Thu
9Fri12:081.13:361.47:44-0.39:321.17:015:21Waning Crescent9Fri
10Sat12:021.24:341.58:23-0.57:025:21New Moon10Sat
11Sun5:251.69:03-0.77:035:21New Moon11Sun
12Mon6:131.59:45-0.77:035:21New Moon12Mon
13Tue7:041.410:29-0.77:045:22New Moon13Tue
14Wed8:001.311:14-0.67:055:22Waxing Crescent14Wed
15Thu9:031.212:00-0.57:055:22Waxing Crescent15Thu
16Fri10:021.212:47-0.37:065:23Waxing Crescent16Fri
17Sat10:351.11:32-0.27:075:23Waxing Crescent17Sat
18Sun10:561.02:150.07:075:23First Quarter18Sun
19Mon11:100.92:550.27:085:24First Quarter19Mon
20Tue11:280.611:160.96:500.53:360.47:085:24First Quarter20Tue
21Wed1:270.76:400.24:350.67:095:25First Quarter21Wed
22Thu2:550.86:570.06:360.87:095:25Waxing Gibbous22Thu
23Fri3:461.07:21-0.28:230.97:105:26Waxing Gibbous23Fri
24Sat4:221.17:47-0.47:105:26Waxing Gibbous24Sat
25Sun4:541.28:16-0.67:115:27Waxing Gibbous25Sun
26Mon5:291.38:48-0.77:115:28Full Moon26Mon
27Tue6:081.39:24-0.87:115:28Full Moon27Tue
28Wed6:511.210:03-0.97:125:29Full Moon28Wed
29Thu7:371.210:46-0.910:271.17:125:29Waning Gibbous29Thu
30Fri12:411.18:231.111:32-0.87:125:30Waning Gibbous30Fri
31Sat9:001.012:21-0.77:135:31Waning 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 10:11 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 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