Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 8h 46m at 9:09 pm (-0.3 ft)
Next high tide (tomorrow) : 6:50 am (1.4 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:291.67:46 AM1.54:591.55:130.16:567:41First Quarter1Wed
2Thu1:471.66:200.16:577:39First Quarter2Thu
3Fri2:451.67:240.16:577:38Waxing Gibbous3Fri
4Sat3:261.612:261.59:081.48:220.26:587:37Waxing Gibbous4Sat
5Sun3:591.61:471.59:281.39:110.36:587:36Waxing Gibbous5Sun
6Mon4:271.52:571.59:501.29:530.46:597:35Full Moon6Mon
7Tue4:521.53:591.510:151.110:280.66:597:34Full Moon7Tue
8Wed5:151.54:571.510:431.010:580.87:007:32Full Moon8Wed
9Thu5:351.55:521.511:150.911:250.97:017:31Full Moon9Thu
10Fri5:511.56:481.511:510.811:501.17:017:30Waning Gibbous10Fri
11Sat6:001.57:481.512:310.77:027:29Waning Gibbous11Sat
12Sun6:021.58:591.512:171.21:170.67:027:27Waning Gibbous12Sun
13Mon6:041.510:281.512:461.32:070.57:037:26Waning Gibbous13Mon
14Tue6:091.51:191.52:590.57:037:25Third Quarter14Tue
15Wed6:101.63:520.57:047:24Third Quarter15Wed
16Thu1:381.64:470.57:047:23Third Quarter16Thu
17Fri2:171.75:430.57:057:21Third Quarter17Fri
18Sat2:431.76:380.57:057:20Waning Crescent18Sat
19Sun3:051.710:53 AM1.58:491.57:310.57:067:19Waning Crescent19Sun
20Mon3:251.712:491.68:481.48:190.57:067:18Waning Crescent20Mon
21Tue3:451.72:171.69:021.39:050.67:077:16Waning Crescent21Tue
22Wed4:041.63:321.79:281.19:480.77:077:15New Moon22Wed
23Thu4:241.64:421.810:020.810:310.97:087:14New Moon23Thu
24Fri4:431.65:471.910:430.611:151.17:087:13New Moon24Fri
25Sat5:031.66:531.911:290.47:097:12Waxing Crescent25Sat
26Sun5:231.78:021.912:011.312:220.37:097:10Waxing Crescent26Sun
27Mon5:451.79:191.912:531.51:220.27:107:09Waxing Crescent27Mon
28Tue6:071.710:431.92:051.72:270.27:107:08Waxing Crescent28Tue
29Wed6:261.74:091.73:360.37:117:07First Quarter29Wed
30Thu12:051.84:460.47:117:06First Quarter30Thu
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 1:59 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 92% 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 Waxing Gibbous (92% 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