Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 1:32 am (0.2 ft)
Next high tide : in 7h 08m at 9:30 am (1.3 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 - Aug 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:091.412:581.48:591.39:36-0.46:398:11Full Moon1Mon
2Tue5:371.42:231.49:361.210:20-0.36:408:10Full Moon2Tue
3Wed6:051.43:471.410:221.111:05-0.26:408:09Full Moon3Wed
4Thu6:321.35:091.311:180.911:520.16:418:09Waning Gibbous4Thu
5Fri6:591.36:321.312:240.76:428:08Waning Gibbous5Fri
6Sat7:261.38:001.212:420.31:360.56:428:07Waning Gibbous6Sat
7Sun7:531.39:401.21:350.62:450.36:438:06Waning Gibbous7Sun
8Mon8:181.311:281.32:350.93:490.16:438:05Third Quarter8Mon
9Tue8:411.33:471.14:520.06:448:04Third Quarter9Tue
10Wed1:121.38:56 AM1.35:391.35:54-0.16:458:04Third Quarter10Wed
11Thu2:441.46:54-0.16:458:03Waning Crescent11Thu
12Fri3:531.47:50-0.16:468:02Waning Crescent12Fri
13Sat4:331.48:39-0.16:468:01Waning Crescent13Sat
14Sun4:591.412:501.310:331.39:200.06:478:00Waning Crescent14Sun
15Mon5:201.42:001.310:271.29:550.16:477:59New Moon15Mon
16Tue5:401.43:021.310:351.210:240.26:487:58New Moon16Tue
17Wed6:001.34:011.210:581.110:500.36:487:57New Moon17Wed
18Thu6:191.34:591.211:320.911:150.56:497:56New Moon18Thu
19Fri6:361.35:581.212:150.86:507:55Waxing Crescent19Fri
20Sat6:501.37:031.11:030.76:507:54Waxing Crescent20Sat
21Sun6:581.38:191.112:060.81:530.66:517:53Waxing Crescent21Sun
22Mon7:021.39:531.212:340.92:400.56:517:52Waxing Crescent22Mon
23Tue7:061.31:021.13:270.46:527:51First Quarter23Tue
24Wed7:091.44:130.36:527:50First Quarter24Wed
25Thu7:041.45:020.26:537:49First Quarter25Thu
26Fri6:101.55:540.16:537:47First Quarter26Fri
27Sat6:061.56:480.06:547:46Waxing Gibbous27Sat
28Sun3:311.67:410.06:547:45Waxing Gibbous28Sun
29Mon3:551.612:071.58:101.48:320.06:557:44Waxing Gibbous29Mon
30Tue4:191.61:441.68:401.39:210.16:557:43Waxing Gibbous30Tue
31Wed4:441.53:111.69:221.110:080.26:567:42Full Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 5:31 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 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