Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 10:01 pm (-0.4 ft)
Next high tide : in 1h 49m at 1:15 pm (1.6 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:45 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jan 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:060.98:290.912:110.812:56-0.47:135:31Waxing Crescent1Tue
2Wed6:530.78:550.82:110.51:49-0.17:135:32First Quarter2Wed
3Thu9:150.69:160.83:270.22:410.37:135:33First Quarter3Thu
4Fri11:390.79:270.74:30-0.13:480.67:145:33First Quarter4Fri
5Sat2:160.85:25-0.37:145:34First Quarter5Sat
6Sun3:581.06:14-0.57:145:35Waxing Gibbous6Sun
7Mon4:421.16:59-0.77:145:36Waxing Gibbous7Mon
8Tue5:151.17:40-0.77:145:36Waxing Gibbous8Tue
9Wed5:401.08:19-0.87:145:37Waxing Gibbous9Wed
10Thu6:001.08:55-0.87:145:38Full Moon10Thu
11Fri6:190.99:29-0.89:190.97:145:39Full Moon11Fri
12Sat6:410.910:02-0.89:280.87:145:39Full Moon12Sat
13Sun1:100.97:030.810:33-0.710:220.87:145:40Full Moon13Sun
14Mon2:100.87:250.811:03-0.67:145:41Waning Gibbous14Mon
15Tue3:140.77:440.812:280.711:31 AM-0.57:145:42Waning Gibbous15Tue
16Wed4:300.57:560.71:500.511:58 AM-0.37:145:43Waning Gibbous16Wed
17Thu6:040.47:590.72:340.312:24-0.17:145:44Waning Gibbous17Thu
18Fri8:200.37:500.63:070.112:500.27:145:44Third Quarter18Fri
19Sat11:060.47:310.73:39-0.11:140.47:135:45Third Quarter19Sat
20Sun6:460.74:15-0.47:135:46Third Quarter20Sun
21Mon5:270.94:58-0.67:135:47Third Quarter21Mon
22Tue5:071.05:48-0.87:135:48Waning Crescent22Tue
23Wed4:181.16:43-1.07:125:49Waning Crescent23Wed
24Thu4:421.17:37-1.17:125:50Waning Crescent24Thu
25Fri5:101.08:31-1.27:551.07:125:50New Moon25Fri
26Sat12:181.15:360.99:23-1.28:370.87:115:51New Moon26Sat
27Sun1:521.06:020.810:13-1.19:330.67:115:52New Moon27Sun
28Mon3:181.06:270.711:02-0.810:420.47:105:53Waxing Crescent28Mon
29Tue4:400.96:500.711:51-0.57:105:54Waxing Crescent29Tue
30Wed6:070.77:110.612:030.212:39-0.27:095:55Waxing Crescent30Wed
31Thu7:470.67:260.61:22-0.11:260.27:095:55Waxing Crescent31Thu
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 5:38 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 2% 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 New Moon (2% 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