Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 3h 50m at 8:16 pm (-0.7 ft)
Next high tide (tomorrow) : 5:23 am (1.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:021.21:221.36:240.67:260.76:367:55Waxing Gibbous1Sat
2Sun1:451.41:431.37:460.88:040.46:367:56Waxing Gibbous2Sun
3Mon3:071.52:021.39:011.08:460.16:357:56Waxing Gibbous3Mon
4Tue4:161.72:201.310:091.19:30-0.16:347:57Full Moon4Tue
5Wed5:171.82:381.411:131.310:14-0.26:337:58Full Moon5Wed
6Thu6:131.82:561.412:201.46:327:58Full Moon6Thu
7Fri7:071.811:50-0.36:327:59Full Moon7Fri
8Sat8:011.86:317:59Waning Gibbous8Sat
9Sun8:581.712:42-0.26:308:00Waning Gibbous9Sun
10Mon9:581.61:360.06:298:01Waning Gibbous10Mon
11Tue10:561.52:330.26:298:01Third Quarter11Tue
12Wed11:421.43:280.36:288:02Third Quarter12Wed
13Thu12:161.34:230.57:301.06:278:03Third Quarter13Thu
14Fri12:411.35:200.77:340.86:278:03Third Quarter14Fri
15Sat1:161.112:581.36:250.97:530.66:268:04Waning Crescent15Sat
16Sun2:381.21:061.27:381.08:160.46:268:04Waning Crescent16Sun
17Mon3:451.312:591.28:471.18:430.36:258:05Waning Crescent17Mon
18Tue4:381.412:471.39:491.29:100.16:258:06Waning Crescent18Tue
19Wed5:201.512:491.310:461.39:400.06:248:06New Moon19Wed
20Thu5:581.610:10-0.16:248:07New Moon20Thu
21Fri6:351.610:43-0.26:238:07New Moon21Fri
22Sat7:151.711:20-0.26:238:08New Moon22Sat
23Sun7:581.76:228:09Waxing Crescent23Sun
24Mon8:461.612:00-0.26:228:09Waxing Crescent24Mon
25Tue9:341.612:46-0.16:218:10Waxing Crescent25Tue
26Wed10:171.51:360.06:218:10Waxing Crescent26Wed
27Thu10:521.48:111.12:290.25:341.16:218:11First Quarter27Thu
28Fri11:201.410:561.13:260.45:520.86:208:11First Quarter28Fri
29Sat11:421.34:290.66:260.56:208:12First Quarter29Sat
30Sun12:531.212:001.35:460.97:060.26:208:13Waxing Gibbous30Sun
31Mon2:221.412:141.37:311.17:490.06:208:13Waxing Gibbous31Mon
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 12:49 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 11% 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 (11% 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