Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 4h 27m at 5:13 pm (-0.2 ft)
Next high tide (tomorrow) : 4:50 am (1.5 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Dec 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:251.24:331.48:50-0.110:061.26:565:20Full Moon1Thu
2Fri1:341.25:161.59:19-0.210:451.26:575:20Full Moon2Fri
3Sat1:261.25:561.49:49-0.211:181.26:575:20Full Moon3Sat
4Sun1:191.26:371.410:19-0.26:585:20Full Moon4Sun
5Mon7:201.410:52-0.26:595:20Waning Gibbous5Mon
6Tue8:061.311:28-0.17:005:20Waning Gibbous6Tue
7Wed8:551.312:06-0.17:005:20Waning Gibbous7Wed
8Thu9:401.212:450.07:015:21Waning Gibbous8Thu
9Fri10:161.21:260.17:025:21Third Quarter9Fri
10Sat10:441.12:070.37:025:21Third Quarter10Sat
11Sun9:150.711:041.16:130.62:530.47:035:21Third Quarter11Sun
12Mon11:570.711:191.06:220.43:490.67:045:22Third Quarter12Mon
13Tue1:200.86:420.25:070.77:045:22Waning Crescent13Tue
14Wed2:231.07:070.06:410.87:055:22Waning Crescent14Wed
15Thu3:141.27:35-0.27:520.97:065:23Waning Crescent15Thu
16Fri12:071.14:001.38:08-0.58:391.07:065:23Waning Crescent16Fri
17Sat12:361.14:451.38:46-0.69:141.17:075:23New Moon17Sat
18Sun1:151.25:291.49:27-0.79:461.17:075:24New Moon18Sun
19Mon2:021.26:141.310:12-0.810:261.07:085:24New Moon19Mon
20Tue2:551.27:011.311:01-0.711:231.07:085:25Waxing Crescent20Tue
21Wed3:561.17:481.211:53-0.67:095:25Waxing Crescent21Wed
22Thu5:041.08:351.112:590.912:48-0.47:095:26Waxing Crescent22Thu
23Fri6:290.89:191.02:360.71:46-0.27:105:26First Quarter23Fri
24Sat8:320.710:000.93:510.52:450.17:105:27First Quarter24Sat
25Sun10:420.710:370.94:570.23:520.47:115:27First Quarter25Sun
26Mon12:300.75:530.05:230.67:115:28First Quarter26Mon
27Tue2:030.86:42-0.27:140.77:125:28Waxing Gibbous27Tue
28Wed3:150.97:24-0.38:450.87:125:29Waxing Gibbous28Wed
29Thu12:010.84:051.08:00-0.59:540.87:125:30Waxing Gibbous29Thu
30Fri12:090.84:421.08:33-0.57:135:30Waxing Gibbous30Fri
31Sat5:141.09:03-0.67:135:31Full Moon31Sat
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 11:01 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 neap phase. Tonight's moon is 43% 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 minimum.

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 Third Quarter (43% illuminated). This places Galveston Pier 21, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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