Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 9h 51m at 11:48 pm (-0.3 ft)
Next high tide (tomorrow) : 8:41 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:23 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Aug 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:411.35:311.112:451.06:398:11Waning Gibbous1Wed
2Thu7:561.27:181.112:310.11:500.76:398:10Waning Gibbous2Thu
3Fri8:071.29:181.11:160.52:440.46:408:10Waning Gibbous3Fri
4Sat8:101.211:261.22:060.83:360.16:418:09Third Quarter4Sat
5Sun8:001.23:071.14:29-0.16:418:08Third Quarter5Sun
6Mon1:231.45:26-0.36:428:07Third Quarter6Mon
7Tue3:071.56:26-0.46:428:07Waning Crescent7Tue
8Wed4:251.67:27-0.56:438:06Waning Crescent8Wed
9Thu5:121.68:25-0.56:448:05Waning Crescent9Thu
10Fri5:411.69:19-0.46:448:04Waning Crescent10Fri
11Sat6:011.512:551.510:151.410:06-0.36:458:03New Moon11Sat
12Sun6:211.42:301.410:121.310:47-0.16:458:02New Moon12Sun
13Mon6:401.43:491.310:501.211:230.16:468:01New Moon13Mon
14Tue7:001.35:021.311:451.011:540.36:468:00New Moon14Tue
15Wed7:161.36:171.212:450.96:477:59Waxing Crescent15Wed
16Thu7:281.27:401.112:200.51:400.76:487:58Waxing Crescent16Thu
17Fri7:271.29:241.112:440.82:280.56:487:57Waxing Crescent17Fri
18Sat7:041.21:011.03:130.46:497:56Waxing Crescent18Sat
19Sun6:321.33:580.26:497:55First Quarter19Sun
20Mon5:351.44:440.16:507:54First Quarter20Mon
21Tue4:501.55:350.16:507:53First Quarter21Tue
22Wed5:111.66:280.06:517:52First Quarter22Wed
23Thu5:411.67:20-0.16:517:51Waxing Gibbous23Thu
24Fri5:591.68:09-0.16:527:50Waxing Gibbous24Fri
25Sat5:361.68:53-0.16:527:49Waxing Gibbous25Sat
26Sun5:341.612:201.59:441.59:34-0.16:537:48Waxing Gibbous26Sun
27Mon5:431.52:081.59:451.410:140.06:547:47Full Moon27Mon
28Tue5:551.53:451.510:191.210:540.26:547:46Full Moon28Tue
29Wed6:081.45:141.511:041.011:360.56:557:45Full Moon29Wed
30Thu6:191.46:401.511:550.76:557:44Waning Gibbous30Thu
31Fri6:261.48:101.512:210.812:500.46:567:42Waning Gibbous31Fri
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 4:14 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 97% 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 Full Moon (97% 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