Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 11:49 am (1.2 ft)
Next high tide : in 47m at 7:53 am (1.3 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 6:30 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 1988

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:321.511:551.73:191.43:010.06:567:41Third Quarter1Thu
2Fri4:040.06:577:39Third Quarter2Fri
3Sat2:001.85:090.06:577:38Third Quarter3Sat
4Sun3:271.86:160.06:587:37Third Quarter4Sun
5Mon4:281.87:210.16:597:36Waning Crescent5Mon
6Tue5:091.78:170.26:597:35Waning Crescent6Tue
7Wed5:241.79:030.37:007:33Waning Crescent7Wed
8Thu5:231.61:201.510:261.59:390.47:007:32Waning Crescent8Thu
9Fri5:271.52:451.510:161.410:080.57:017:31New Moon9Fri
10Sat5:351.53:561.510:351.210:330.67:017:30New Moon10Sat
11Sun5:421.55:021.511:051.010:560.87:027:29New Moon11Sun
12Mon5:461.56:061.511:390.911:191.07:027:27New Moon12Mon
13Tue5:441.57:131.512:140.77:037:26Waxing Crescent13Tue
14Wed5:351.58:261.512:510.67:037:25Waxing Crescent14Wed
15Thu5:221.59:561.612:111.41:310.57:047:24Waxing Crescent15Thu
16Fri4:391.612:381.62:140.47:047:22Waxing Crescent16Fri
17Sat3:021.73:040.37:057:21First Quarter17Sat
18Sun3:261.84:010.27:057:20First Quarter18Sun
19Mon4:121.95:040.27:067:19First Quarter19Mon
20Tue4:581.96:110.17:067:18First Quarter20Tue
21Wed4:211.97:160.27:077:16Waxing Gibbous21Wed
22Thu4:001.811:07 AM1.88:561.78:150.27:077:15Waxing Gibbous22Thu
23Fri4:091.71:321.88:341.59:100.47:087:14Waxing Gibbous23Fri
24Sat4:211.73:141.89:091.210:010.67:087:13Full Moon24Sat
25Sun4:341.64:391.99:530.910:520.97:097:11Full Moon25Sun
26Mon4:471.65:572.010:400.611:451.27:097:10Full Moon26Mon
27Tue4:571.67:112.011:290.37:107:09Waning Gibbous27Tue
28Wed5:001.78:302.012:491.512:220.27:107:08Waning Gibbous28Wed
29Thu4:441.710:002.02:361.71:190.17:117:07Waning Gibbous29Thu
30Fri11:562.02:200.17:127:05Waning Gibbous30Fri
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 9:51 am — 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 7% 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 Waxing Crescent (7% 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