Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 10h 30m at 7:10 pm (-0.5 ft)
Next high tide (tomorrow) : 4:54 am (1.7 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 6:43 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Aug 1957

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:341.211:041.22:200.73:520.16:398:11First Quarter1Thu
2Fri8:581.23:211.04:530.06:398:10First Quarter2Fri
3Sat12:521.29:14 AM1.34:521.25:53-0.16:408:10First Quarter3Sat
4Sun2:321.36:51-0.26:418:09Waxing Gibbous4Sun
5Mon3:571.47:46-0.26:418:08Waxing Gibbous5Mon
6Tue4:411.48:35-0.26:428:07Waxing Gibbous6Tue
7Wed5:061.49:17-0.16:428:06Waxing Gibbous7Wed
8Thu5:261.41:121.211:001.29:53-0.16:438:06Full Moon8Thu
9Fri5:471.32:271.210:421.210:240.06:438:05Full Moon9Fri
10Sat6:071.33:311.210:541.110:520.26:448:04Full Moon10Sat
11Sun6:281.34:321.111:271.011:190.36:458:03Full Moon11Sun
12Mon6:471.35:341.112:140.96:458:02Waning Gibbous12Mon
13Tue7:041.36:411.11:060.86:468:01Waning Gibbous13Tue
14Wed7:171.27:591.012:130.61:580.66:468:00Waning Gibbous14Wed
15Thu7:251.29:381.012:410.82:460.56:477:59Waning Gibbous15Thu
16Fri7:321.311:341.11:101.03:310.46:477:58Waning Gibbous16Fri
17Sat7:381.31:381.14:160.36:487:57Third Quarter17Sat
18Sun7:441.35:020.26:497:56Third Quarter18Sun
19Mon7:331.45:520.16:497:55Third Quarter19Mon
20Tue5:551.56:440.06:507:54Waning Crescent20Tue
21Wed3:411.57:36-0.16:507:53Waning Crescent21Wed
22Thu4:061.511:47 AM1.58:231.48:26-0.16:517:52Waning Crescent22Thu
23Fri4:311.51:211.58:441.39:14-0.16:517:51Waning Crescent23Fri
24Sat4:561.52:471.59:221.210:010.06:527:50New Moon24Sat
25Sun5:211.54:071.610:071.010:470.26:527:49New Moon25Sun
26Mon5:461.45:241.610:580.811:340.56:537:48New Moon26Mon
27Tue6:111.46:391.511:550.66:547:47Waxing Crescent27Tue
28Wed6:361.47:581.512:230.812:580.46:547:46Waxing Crescent28Wed
29Thu7:001.49:261.51:161.02:040.26:557:45Waxing Crescent29Thu
30Fri7:211.511:061.52:201.23:100.26:557:43First Quarter30Fri
31Sat7:341.53:521.44:150.16:567:42First Quarter31Sat
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 12:02 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 transitional phase. Tonight's moon is 22% 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 Waning Crescent (22% 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