Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 4h 43m at 6:20 pm (-0.1 ft)
Next high tide (tomorrow) : 5:07 am (1.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:371.65:131.312:22-0.32:551.36:208:14Waxing Crescent1Mon
2Tue9:291.66:321.21:18-0.23:531.26:198:14Waxing Crescent2Tue
3Wed10:191.58:151.12:190.04:471.06:198:15First Quarter3Wed
4Thu11:031.410:251.13:210.25:400.86:198:15First Quarter4Thu
5Fri11:421.34:270.56:300.66:198:16First Quarter5Fri
6Sat12:181.112:171.35:410.77:170.46:198:16First Quarter6Sat
7Sun1:511.212:471.27:130.97:590.26:198:17Waxing Gibbous7Sun
8Mon3:111.31:111.28:481.18:370.06:198:17Waxing Gibbous8Mon
9Tue4:171.41:241.210:171.29:12-0.16:198:18Waxing Gibbous9Tue
10Wed5:091.59:44-0.16:198:18Waxing Gibbous10Wed
11Thu5:511.510:15-0.26:198:18Full Moon11Thu
12Fri6:281.510:46-0.26:198:19Full Moon12Fri
13Sat7:041.511:18-0.16:198:19Full Moon13Sat
14Sun7:401.411:53-0.16:198:19Full Moon14Sun
15Mon8:191.46:198:20Waning Gibbous15Mon
16Tue8:581.412:290.06:198:20Waning Gibbous16Tue
17Wed9:361.31:080.16:198:20Waning Gibbous17Wed
18Thu10:101.31:480.26:198:21Waning Gibbous18Thu
19Fri10:381.39:340.82:280.46:010.76:208:21Third Quarter19Fri
20Sat10:591.23:110.56:210.56:208:21Third Quarter20Sat
21Sun12:110.811:14 AM1.23:590.76:440.46:208:21Third Quarter21Sun
22Mon1:401.011:26 AM1.25:010.97:110.16:208:22Third Quarter22Mon
23Tue2:471.111:41 AM1.26:301.07:43-0.16:208:22Waning Crescent23Tue
24Wed3:421.312:021.28:091.18:19-0.36:218:22Waning Crescent24Wed
25Thu4:301.412:331.39:161.29:00-0.46:218:22Waning Crescent25Thu
26Fri5:151.51:151.310:001.39:43-0.56:218:22New Moon26Fri
27Sat5:581.62:091.410:361.310:29-0.66:228:22New Moon27Sat
28Sun6:411.63:141.311:181.311:18-0.56:228:22New Moon28Sun
29Mon7:241.54:261.312:191.26:228:22Waxing Crescent29Mon
30Tue8:071.45:431.212:10-0.41:431.16:238:22Waxing Crescent30Tue
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 11:43 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 First 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