Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 10h 54m at 7:04 pm (-0.2 ft)
Next high tide (tomorrow) : 5:44 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:481.21:331.27:380.88:260.46:198:13Waxing Gibbous1Tue
2Wed3:111.31:511.28:591.08:550.26:198:14Waxing Gibbous2Wed
3Thu4:211.41:551.210:191.19:230.16:198:14Waxing Gibbous3Thu
4Fri5:161.59:490.06:198:15Full Moon4Fri
5Sat6:011.510:17-0.16:198:15Full Moon5Sat
6Sun6:401.610:46-0.26:198:16Full Moon6Sun
7Mon7:191.611:19-0.26:198:16Full Moon7Mon
8Tue8:001.511:56-0.16:198:17Full Moon8Tue
9Wed8:451.56:188:17Waning Gibbous9Wed
10Thu9:351.512:36-0.16:188:18Waning Gibbous10Thu
11Fri10:231.41:190.06:188:18Waning Gibbous11Fri
12Sat11:031.42:030.16:188:18Waning Gibbous12Sat
13Sun11:331.42:490.26:198:19Third Quarter13Sun
14Mon11:541.310:550.83:370.37:120.86:198:19Third Quarter14Mon
15Tue12:091.24:310.57:110.66:198:19Third Quarter15Tue
16Wed1:071.012:191.25:380.77:260.36:198:20Waning Crescent16Wed
17Thu2:301.112:251.27:040.97:530.06:198:20Waning Crescent17Thu
18Fri3:381.412:321.28:371.18:28-0.36:198:20Waning Crescent18Fri
19Sat4:351.512:421.39:561.29:08-0.56:198:21Waning Crescent19Sat
20Sun5:281.79:53-0.66:198:21New Moon20Sun
21Mon6:181.710:41-0.76:208:21New Moon21Mon
22Tue7:091.711:33-0.76:208:21New Moon22Tue
23Wed8:001.66:208:21Waxing Crescent23Wed
24Thu8:521.512:29-0.56:208:22Waxing Crescent24Thu
25Fri9:421.46:251.11:28-0.34:011.16:218:22Waxing Crescent25Fri
26Sat10:271.38:211.02:29-0.14:540.96:218:22First Quarter26Sat
27Sun11:041.210:400.93:290.25:450.76:218:22First Quarter27Sun
28Mon11:361.24:290.56:320.46:228:22First Quarter28Mon
29Tue12:381.012:011.15:390.77:130.26:228:22First Quarter29Tue
30Wed2:181.112:171.17:190.97:500.06:228:22Waxing Gibbous30Wed
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 12:24 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 transitional phase. Tonight's moon is 71% 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 Waxing Gibbous (71% 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