Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 59m at 6:10 pm (-0.4 ft)
Next high tide (tomorrow) : 4:18 am (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:43 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:191.68:081.712:290.77:127:04Waxing Crescent1Sat
2Sun5:071.69:231.712:201.51:090.67:137:03Waxing Crescent2Sun
3Mon4:351.610:551.81:051.61:530.57:137:02Waxing Crescent3Mon
4Tue2:400.57:147:01First Quarter4Tue
5Wed12:311.83:330.47:146:59First Quarter5Wed
6Thu1:391.94:320.47:156:58First Quarter6Thu
7Fri2:221.95:350.47:166:57First Quarter7Fri
8Sat2:511.96:390.47:166:56Waxing Gibbous8Sat
9Sun3:131.97:410.47:176:55Waxing Gibbous9Sun
10Mon3:331.81:131.78:561.58:370.57:176:54Waxing Gibbous10Mon
11Tue3:511.82:521.89:061.39:300.77:186:53Waxing Gibbous11Tue
12Wed4:081.74:131.99:361.010:210.97:196:52Full Moon12Wed
13Thu4:241.75:272.010:160.711:141.27:196:50Full Moon13Thu
14Fri4:381.76:372.111:010.47:206:49Full Moon14Fri
15Sat4:491.77:482.112:131.411:50 AM0.27:206:48Waning Gibbous15Sat
16Sun4:531.79:052.11:381.712:440.17:216:47Waning Gibbous16Sun
17Mon10:322.01:440.17:226:46Waning Gibbous17Mon
18Tue2:480.27:226:45Third Quarter18Tue
19Wed12:042.03:560.37:236:44Third Quarter19Wed
20Thu1:182.05:070.47:246:43Third Quarter20Thu
21Fri2:081.96:190.57:246:42Third Quarter21Fri
22Sat2:421.87:260.77:256:41Waning Crescent22Sat
23Sun3:071.71:281.59:431.48:210.87:266:40Waning Crescent23Sun
24Mon3:261.72:441.59:391.29:050.97:266:39Waning Crescent24Mon
25Tue3:421.63:491.69:491.09:401.17:276:38Waning Crescent25Tue
26Wed3:521.64:471.610:050.910:101.27:286:37New Moon26Wed
27Thu3:561.55:381.710:260.710:371.37:286:37New Moon27Thu
28Fri3:481.66:271.710:510.511:071.57:296:36New Moon28Fri
29Sat3:331.67:161.811:190.411:411.67:306:35New Moon29Sat
30Sun3:201.68:091.811:500.37:306:34Waxing Crescent30Sun
31Mon9:101.812:250.37:316:33Waxing Crescent31Mon
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 11:14 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 32% 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 Third Quarter (32% 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