Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 21m at 8:29 pm (-0.3 ft)
Next high tide (tomorrow) : 6:46 am (1.5 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:251.68:351.712:021.412:450.67:137:03Waxing Crescent1Thu
2Fri5:121.69:571.812:451.61:270.57:137:02Waxing Crescent2Fri
3Sat11:271.92:160.47:147:01Waxing Crescent3Sat
4Sun3:120.37:147:00First Quarter4Sun
5Mon12:471.94:140.37:156:59First Quarter5Mon
6Tue1:462.05:230.37:156:58First Quarter6Tue
7Wed2:272.06:340.37:166:56Waxing Gibbous7Wed
8Thu2:591.97:420.47:166:55Waxing Gibbous8Thu
9Fri3:251.81:271.78:441.58:430.57:176:54Waxing Gibbous9Fri
10Sat3:491.73:001.89:061.39:380.77:186:53Waxing Gibbous10Sat
11Sun4:111.74:181.99:421.010:300.97:186:52Full Moon11Sun
12Mon4:311.75:292.010:230.711:211.27:196:51Full Moon12Mon
13Tue4:481.66:362.011:060.57:196:50Full Moon13Tue
14Wed4:591.67:442.012:191.411:52 AM0.37:206:49Waning Gibbous14Wed
15Thu4:561.78:582.01:401.612:410.37:216:48Waning Gibbous15Thu
16Fri10:221.91:320.37:216:47Waning Gibbous16Fri
17Sat11:581.92:270.37:226:46Waning Gibbous17Sat
18Sun3:260.47:236:45Third Quarter18Sun
19Mon1:151.94:280.57:236:44Third Quarter19Mon
20Tue2:051.95:320.67:246:43Third Quarter20Tue
21Wed2:361.86:350.77:256:42Third Quarter21Wed
22Thu2:581.77:320.77:256:41Waning Crescent22Thu
23Fri3:151.71:441.49:311.38:190.87:266:40Waning Crescent23Fri
24Sat3:291.62:581.59:321.28:590.97:276:39Waning Crescent24Sat
25Sun3:401.64:011.69:481.09:351.17:276:38Waning Crescent25Sun
26Mon3:471.64:571.610:090.810:101.27:286:37New Moon26Mon
27Tue3:491.65:491.710:330.610:451.47:296:36New Moon27Tue
28Wed3:481.66:411.811:000.411:231.57:296:35New Moon28Wed
29Thu3:441.67:341.911:300.37:306:34New Moon29Thu
30Fri3:241.68:351.912:091.612:070.27:316:34Waxing Crescent30Fri
31Sat9:451.912:500.17:326:33Waxing Crescent31Sat
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 1:37 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 86% 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 Waxing Gibbous (86% 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