Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 15h 13m at 1:32 am (0.2 ft)
Next high tide (tomorrow) : 9:44 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:031.96:330.37:127:05Waning Crescent1Tue
2Wed3:281.97:340.37:127:04Waning Crescent2Wed
3Thu3:491.812:381.79:071.68:310.47:137:02Waning Crescent3Thu
4Fri4:081.82:221.89:081.49:230.57:147:01Waning Crescent4Fri
5Sat4:261.73:481.99:361.110:130.87:147:00New Moon5Sat
6Sun4:421.75:051.910:150.911:031.07:156:59New Moon6Sun
7Mon4:571.66:182.011:000.611:581.37:156:58New Moon7Mon
8Tue5:091.67:312.011:490.37:166:57Waxing Crescent8Tue
9Wed5:141.78:492.01:081.512:440.27:166:55Waxing Crescent9Wed
10Thu10:172.01:430.17:176:54Waxing Crescent10Thu
11Fri11:532.02:470.27:186:53First Quarter11Fri
12Sat3:540.37:186:52First Quarter12Sat
13Sun1:182.05:040.47:196:51First Quarter13Sun
14Mon2:161.96:150.57:196:50First Quarter14Mon
15Tue2:541.97:220.67:206:49Waxing Gibbous15Tue
16Wed3:191.81:051.510:151.58:180.77:216:48Waxing Gibbous16Wed
17Thu3:381.72:251.59:551.39:030.87:216:47Waxing Gibbous17Thu
18Fri3:541.73:311.69:551.29:391.07:226:46Waxing Gibbous18Fri
19Sat4:071.64:301.610:071.010:101.17:236:45Full Moon19Sat
20Sun4:151.65:241.710:260.810:381.37:236:44Full Moon20Sun
21Mon4:151.66:151.710:500.711:081.47:246:43Full Moon21Mon
22Tue4:081.67:071.811:170.511:431.57:256:42Full Moon22Tue
23Wed4:001.68:011.811:480.47:256:41Waning Gibbous23Wed
24Thu3:441.79:041.812:391.612:230.47:266:40Waning Gibbous24Thu
25Fri10:221.91:030.37:276:39Waning Gibbous25Fri
26Sat11:521.91:490.37:276:38Waning Gibbous26Sat
27Sun11:591.91:420.36:285:37Third Quarter27Sun
28Mon2:410.36:295:36Third Quarter28Mon
29Tue12:371.93:460.46:305:35Third Quarter29Tue
30Wed1:021.84:540.46:305:34Third Quarter30Wed
31Thu1:221.810:26 AM1.57:511.46:040.66:315:34Waning Crescent31Thu
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 5:38 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 80% 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 Waning Gibbous (80% 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