Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 7:47 pm (-0.3 ft)
Next high tide : in 44m at 5:44 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:421.51:380.26:367:55Waxing Crescent1Tue
2Wed11:441.52:270.26:357:56First Quarter2Wed
3Thu12:331.53:200.26:357:57First Quarter3Thu
4Fri1:101.54:180.36:347:57First Quarter4Fri
5Sat1:401.45:210.48:101.16:337:58First Quarter5Sat
6Sun2:041.46:300.58:090.96:327:58Waxing Gibbous6Sun
7Mon1:281.22:251.37:400.68:270.76:317:59Waxing Gibbous7Mon
8Tue2:511.42:431.38:450.88:570.46:318:00Waxing Gibbous8Tue
9Wed4:021.63:011.39:460.99:350.16:308:00Full Moon9Wed
10Thu5:051.73:181.310:461.110:17-0.16:298:01Full Moon10Thu
11Fri6:051.83:361.411:511.311:03-0.36:298:02Full Moon11Fri
12Sat7:031.93:541.41:151.46:288:02Waning Gibbous12Sat
13Sun8:031.86:278:03Waning Gibbous13Sun
14Mon9:071.812:49-0.36:278:04Waning Gibbous14Mon
15Tue10:131.71:50-0.26:268:04Waning Gibbous15Tue
16Wed11:151.62:540.06:268:05Third Quarter16Wed
17Thu12:081.54:000.26:258:05Third Quarter17Thu
18Fri12:501.45:080.47:581.06:248:06Third Quarter18Fri
19Sat12:021.11:241.36:190.68:180.86:248:07Third Quarter19Sat
20Sun1:361.11:511.37:310.78:400.66:248:07Waning Crescent20Sun
21Mon2:541.22:121.28:370.99:010.56:238:08Waning Crescent21Mon
22Tue4:001.32:241.29:351.09:220.36:238:08Waning Crescent22Tue
23Wed4:541.42:191.210:251.19:450.26:228:09Waning Crescent23Wed
24Thu5:391.51:501.211:151.210:100.16:228:10New Moon24Thu
25Fri6:201.510:380.06:218:10New Moon25Fri
26Sat6:591.611:100.06:218:11New Moon26Sat
27Sun7:411.611:44-0.16:218:11New Moon27Sun
28Mon8:261.66:208:12Waxing Crescent28Mon
29Tue9:171.612:220.06:208:12Waxing Crescent29Tue
30Wed10:101.51:040.06:208:13Waxing Crescent30Wed
31Thu10:581.51:500.16:208:13Waxing 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 12:45 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 79% 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 (79% 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