Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 4h 08m at 5:07 pm (0.5 ft)
Next high tide : 11:02 pm (0.8 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:25 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:091.63:231.69:471.210:250.16:577:41New Moon1Tue
2Wed5:401.64:381.710:331.011:130.36:577:39New Moon2Wed
3Thu6:091.55:511.611:260.86:587:38Waxing Crescent3Thu
4Fri6:381.57:061.612:040.612:250.76:587:37Waxing Crescent4Fri
5Sat7:061.58:261.612:580.91:290.56:597:36Waxing Crescent5Sat
6Sun7:311.59:571.62:011.12:340.46:597:35Waxing Crescent6Sun
7Mon7:501.511:361.63:221.33:380.37:007:33First Quarter7Mon
8Tue7:421.55:191.44:390.37:007:32First Quarter8Tue
9Wed1:081.65:410.37:017:31First Quarter9Wed
10Thu2:231.76:400.37:017:30First Quarter10Thu
11Fri3:161.77:350.47:027:29Waxing Gibbous11Fri
12Sat3:511.68:230.47:027:27Waxing Gibbous12Sat
13Sun4:161.61:271.410:231.49:030.57:037:26Waxing Gibbous13Sun
14Mon4:381.62:321.510:051.39:370.57:037:25Waxing Gibbous14Mon
15Tue4:581.63:291.510:141.310:080.67:047:24Full Moon15Tue
16Wed5:161.64:241.510:361.110:370.77:047:23Full Moon16Wed
17Thu5:331.65:171.511:051.011:050.97:057:21Full Moon17Thu
18Fri5:481.66:121.511:390.911:351.07:057:20Full Moon18Fri
19Sat6:011.57:101.512:160.87:067:19Waning Gibbous19Sat
20Sun6:111.58:171.612:081.212:570.77:067:18Waning Gibbous20Sun
21Mon6:201.59:361.612:471.31:410.67:077:16Waning Gibbous21Mon
22Tue6:251.611:031.71:381.52:290.57:077:15Waning Gibbous22Tue
23Wed3:210.57:087:14Third Quarter23Wed
24Thu12:211.74:190.47:087:13Third Quarter24Thu
25Fri1:211.85:220.47:097:11Third Quarter25Fri
26Sat2:071.86:280.47:097:10Waning Crescent26Sat
27Sun2:451.811:30 AM1.68:271.67:320.47:107:09Waning Crescent27Sun
28Mon3:181.81:181.78:351.58:310.57:107:08Waning Crescent28Mon
29Tue3:481.82:431.89:031.39:250.67:117:07Waning Crescent29Tue
30Wed4:171.73:581.99:401.110:160.87:127:05New Moon30Wed
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 8:04 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 transitional phase. Tonight's moon is 62% 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 shifting between spring and neap.

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 (62% illuminated). This places Galveston Pier 21, TX in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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