Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 3h 33m at 11:13 pm (-0.3 ft)
Next high tide (tomorrow) : 8:10 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:23 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Nov 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:350.27:326:32Waxing Crescent1Sat
2Sun1:241.812:220.26:335:32Waxing Crescent2Sun
3Mon12:561.81:130.36:345:31Waxing Crescent3Mon
4Tue1:081.82:060.46:345:30First Quarter4Tue
5Wed12:341.72:590.56:355:29First Quarter5Wed
6Thu12:261.73:530.66:365:29First Quarter6Thu
7Fri12:311.64:510.76:375:28First Quarter7Fri
8Sat12:371.512:151.37:231.15:570.96:375:27Waxing Gibbous8Sat
9Sun12:411.51:471.47:230.87:071.16:385:27Waxing Gibbous9Sun
10Mon12:421.52:571.67:380.58:141.36:395:26Waxing Gibbous10Mon
11Tue12:411.53:561.88:040.29:161.46:405:26Full Moon11Tue
12Wed12:401.54:501.98:38-0.110:161.66:415:25Full Moon12Wed
13Thu12:411.65:432.09:18-0.36:415:25Full Moon13Thu
14Fri6:392.010:04-0.46:425:24Full Moon14Fri
15Sat7:411.910:56-0.56:435:24Waning Gibbous15Sat
16Sun8:531.811:54-0.46:445:23Waning Gibbous16Sun
17Mon10:061.712:57-0.26:455:23Waning Gibbous17Mon
18Tue10:511.62:020.06:455:23Third Quarter18Tue
19Wed11:191.53:090.26:465:22Third Quarter19Wed
20Thu9:031.211:421.45:471.24:190.56:475:22Third Quarter20Thu
21Fri11:351.26:220.95:390.86:485:22Third Quarter21Fri
22Sat12:021.31:231.36:570.67:101.06:495:21Waning Crescent22Sat
23Sun12:181.32:521.47:290.38:451.26:505:21Waning Crescent23Sun
24Mon12:241.33:591.57:590.16:505:21Waning Crescent24Mon
25Tue4:471.68:27-0.16:515:21New Moon25Tue
26Wed5:261.68:56-0.26:525:20New Moon26Wed
27Thu6:021.69:25-0.26:535:20New Moon27Thu
28Fri6:411.69:57-0.36:545:20New Moon28Fri
29Sat7:271.510:33-0.36:545:20New Moon29Sat
30Sun11:11-0.26:555:20Waxing Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 3:41 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 100% 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 Full Moon (100% 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