Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 16m at 4:23 pm (0.0 ft)
Next high tide (tomorrow) : 6:30 am (1.3 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:41 am
Moon phase : Third Quarter (54% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:311.53:081.39:270.89:230.36:367:55Waxing Gibbous1Tue
2Wed4:371.73:321.310:251.010:050.06:357:56Full Moon2Wed
3Thu5:381.83:571.311:231.110:51-0.16:357:57Full Moon3Thu
4Fri6:361.84:231.412:291.26:347:57Full Moon4Fri
5Sat7:351.84:481.41:511.36:337:58Waning Gibbous5Sat
6Sun8:361.712:33-0.26:327:58Waning Gibbous6Sun
7Mon9:401.71:30-0.16:327:59Waning Gibbous7Mon
8Tue10:451.62:300.16:318:00Third Quarter8Tue
9Wed11:441.53:320.26:308:00Third Quarter9Wed
10Thu12:331.44:350.48:131.06:298:01Third Quarter10Thu
11Fri1:111.45:410.68:170.96:298:02Third Quarter11Fri
12Sat12:531.11:421.36:500.78:310.86:288:02Waning Crescent12Sat
13Sun2:121.22:061.37:550.88:470.66:278:03Waning Crescent13Sun
14Mon3:191.32:241.28:520.99:070.56:278:03Waning Crescent14Mon
15Tue4:151.32:331.29:391.09:300.36:268:04Waning Crescent15Tue
16Wed5:031.42:331.210:221.19:550.26:268:05New Moon16Wed
17Thu5:451.52:331.311:051.210:230.16:258:05New Moon17Thu
18Fri6:251.52:401.311:581.310:520.06:258:06New Moon18Fri
19Sat7:051.611:250.06:248:07New Moon19Sat
20Sun7:491.66:248:07Waxing Crescent20Sun
21Mon8:361.612:010.06:238:08Waxing Crescent21Mon
22Tue9:281.612:410.06:238:08Waxing Crescent22Tue
23Wed10:211.61:260.16:228:09Waxing Crescent23Wed
24Thu11:071.52:170.16:228:10First Quarter24Thu
25Fri11:451.53:120.26:228:10First Quarter25Fri
26Sat12:161.44:120.46:540.96:218:11First Quarter26Sat
27Sun12:421.35:200.67:160.66:218:11First Quarter27Sun
28Mon1:211.21:061.36:390.87:480.46:218:12Waxing Gibbous28Mon
29Tue2:421.41:291.38:030.98:260.16:208:12Waxing Gibbous29Tue
30Wed3:511.51:511.39:181.19:08-0.16:208:13Waxing Gibbous30Wed
31Thu4:511.72:151.310:241.29:51-0.36:208:13Full Moon31Thu
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 11:26 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 neap phase. Tonight's moon is 54% 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 minimum.

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 (54% illuminated). This places Galveston Pier 21, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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