Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 9h 35m at 9:08 pm (-0.5 ft)
Next high tide (tomorrow) : 5:45 am (1.5 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Nov 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:091.612:521.47:471.16:541.06:325:33Waning Crescent1Sun
2Mon1:211.52:121.57:550.97:451.26:325:32Waning Crescent2Mon
3Tue1:271.53:161.68:120.78:301.36:335:31Waning Crescent3Tue
4Wed1:221.54:091.78:330.59:101.46:345:31New Moon4Wed
5Thu1:021.54:531.78:570.39:481.56:355:30New Moon5Thu
6Fri12:471.65:341.89:240.210:261.66:355:29New Moon6Fri
7Sat12:411.66:161.89:540.16:365:29New Moon7Sat
8Sun7:041.810:270.06:375:28Waxing Crescent8Sun
9Mon8:031.811:050.06:385:27Waxing Crescent9Mon
10Tue11:480.06:395:27Waxing Crescent10Tue
11Wed12:421.812:370.16:395:26Waxing Crescent11Wed
12Thu1:001.711:121.71:310.16:405:26First Quarter12Thu
13Fri11:271.62:280.36:415:25First Quarter13Fri
14Sat11:411.53:300.56:425:25First Quarter14Sat
15Sun10:131.211:541.46:211.14:410.76:435:24First Quarter15Sun
16Mon12:301.36:230.86:060.96:435:24Waxing Gibbous16Mon
17Tue12:041.42:011.56:510.57:341.26:445:23Waxing Gibbous17Tue
18Wed12:131.43:131.77:280.18:521.36:455:23Waxing Gibbous18Wed
19Thu12:191.44:151.98:09-0.210:011.56:465:22Full Moon19Thu
20Fri12:251.55:101.98:52-0.46:475:22Full Moon20Fri
21Sat6:021.99:38-0.56:475:22Full Moon21Sat
22Sun6:561.810:26-0.56:485:22Waning Gibbous22Sun
23Mon7:561.711:16-0.46:495:21Waning Gibbous23Mon
24Tue9:031.612:09-0.26:505:21Waning Gibbous24Tue
25Wed10:071.51:030.06:515:21Waning Gibbous25Wed
26Thu10:461.41:550.26:525:21Third Quarter26Thu
27Fri11:101.32:440.46:525:20Third Quarter27Fri
28Sat11:271.23:310.66:535:20Third Quarter28Sat
29Sun11:460.911:381.26:390.74:220.86:545:20Third Quarter29Sun
30Mon1:361.06:490.55:421.06:555:20Waning Crescent30Mon
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 1:26 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 6% 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 Crescent (6% 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