Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 6h 04m at 4:55 pm (0.8 ft)
Next high tide : 9:25 pm (1.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:161.48:401.512:111.01:140.46:567:41Waxing Crescent1Sun
2Mon6:231.510:121.512:521.22:090.26:577:40Waxing Crescent2Mon
3Tue6:261.511:521.61:341.43:100.16:577:38First Quarter3Tue
4Wed6:151.62:161.64:140.06:587:37First Quarter4Wed
5Thu5:061.75:210.06:587:36First Quarter5Thu
6Fri2:291.76:300.06:597:35Waxing Gibbous6Fri
7Sat3:071.77:360.17:007:34Waxing Gibbous7Sat
8Sun3:361.612:371.68:351.58:340.27:007:32Waxing Gibbous8Sun
9Mon4:021.62:101.69:021.39:260.37:017:31Waxing Gibbous9Mon
10Tue4:271.53:271.69:371.210:100.57:017:30Full Moon10Tue
11Wed4:501.54:361.610:151.010:500.77:027:29Full Moon11Wed
12Thu5:121.55:401.610:540.811:271.07:027:28Full Moon12Thu
13Fri5:301.56:421.611:350.77:037:26Full Moon13Fri
14Sat5:421.57:471.612:001.212:170.57:037:25Waning Gibbous14Sat
15Sun5:421.58:591.612:321.31:030.57:047:24Waning Gibbous15Sun
16Mon5:291.510:311.61:011.51:520.57:047:23Waning Gibbous16Mon
17Tue5:121.61:171.62:460.47:057:21Waning Gibbous17Tue
18Wed2:551.63:420.57:057:20Third Quarter18Wed
19Thu3:131.74:400.57:067:19Third Quarter19Thu
20Fri3:221.75:390.57:067:18Third Quarter20Fri
21Sat3:151.76:360.57:077:17Third Quarter21Sat
22Sun3:201.77:270.57:077:15Waning Crescent22Sun
23Mon3:311.712:251.59:031.48:130.67:087:14Waning Crescent23Mon
24Tue3:441.62:021.59:141.38:540.77:087:13Waning Crescent24Tue
25Wed3:571.63:181.69:331.19:330.87:097:12New Moon25Wed
26Thu4:101.64:251.79:570.910:101.07:097:10New Moon26Thu
27Fri4:211.65:271.810:270.710:481.27:107:09New Moon27Fri
28Sat4:311.66:291.911:030.511:271.47:107:08New Moon28Sat
29Sun4:411.77:331.911:460.37:117:07Waxing Crescent29Sun
30Mon4:511.78:431.912:071.612:370.27:117:06Waxing Crescent30Mon
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 7:10 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 38% 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 (38% 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