Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 48m at 6:21 am (1.0 ft)
Next high tide : 11:13 am (1.1 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (68% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:151.711:52 AM1.59:291.58:010.67:127:04Waxing Gibbous1Sun
2Mon3:371.71:401.59:251.48:440.77:137:03Waxing Gibbous2Mon
3Tue3:581.72:541.69:371.39:240.87:137:02Waxing Gibbous3Tue
4Wed4:171.73:591.79:561.110:020.97:147:01Full Moon4Wed
5Thu4:351.75:001.710:220.910:411.07:147:00Full Moon5Thu
6Fri4:521.76:001.810:540.711:221.27:156:58Full Moon6Fri
7Sat5:081.77:021.911:330.67:156:57Waning Gibbous7Sat
8Sun5:241.78:091.912:091.412:190.47:166:56Waning Gibbous8Sun
9Mon5:391.79:241.91:091.61:120.37:176:55Waning Gibbous9Mon
10Tue5:511.710:451.92:591.72:120.37:176:54Waning Gibbous10Tue
11Wed3:170.37:186:53Third Quarter11Wed
12Thu12:021.94:270.47:186:52Third Quarter12Thu
13Fri1:031.95:400.47:196:51Third Quarter13Fri
14Sat1:501.911:12 AM1.68:251.56:530.57:206:49Waning Crescent14Sat
15Sun2:291.81:021.68:411.48:000.77:206:48Waning Crescent15Sun
16Mon3:021.82:241.79:061.28:580.87:216:47Waning Crescent16Mon
17Tue3:321.73:341.79:341.09:471.07:226:46Waning Crescent17Tue
18Wed3:581.74:361.810:030.910:291.17:226:45New Moon18Wed
19Thu4:211.65:321.810:330.711:061.37:236:44New Moon19Thu
20Fri4:371.66:251.811:030.611:391.47:246:43New Moon20Fri
21Sat4:421.67:171.811:360.57:246:42New Moon21Sat
22Sun4:281.68:121.812:131.512:110.57:256:41Waxing Crescent22Sun
23Mon4:021.69:141.81:041.612:510.57:266:40Waxing Crescent23Mon
24Tue10:261.81:360.57:266:39Waxing Crescent24Tue
25Wed11:401.82:250.57:276:38Waxing Crescent25Wed
26Thu3:190.57:286:38First Quarter26Thu
27Fri12:361.84:150.67:286:37First Quarter27Fri
28Sat1:141.75:130.77:296:36First Quarter28Sat
29Sun1:431.76:140.77:306:35First Quarter29Sun
30Mon2:081.712:401.38:531.37:130.87:306:34Waxing Gibbous30Mon
31Tue2:281.62:111.48:531.18:080.97:316:33Waxing Gibbous31Tue
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 8:47 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 transitional phase. Tonight's moon is 68% 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 (68% 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