Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 5:13 pm (-0.2 ft)
Next high tide (tomorrow) : in 12h 16m at 6:30 am (1.3 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 6:41 am
Moon phase : Third Quarter (54% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:041.47:471.312:180.81:140.86:577:41Waning Gibbous1Sat
2Sun7:141.49:081.312:501.02:050.76:577:39Waning Gibbous2Sun
3Mon7:161.410:471.31:271.12:560.66:587:38Waning Gibbous3Mon
4Tue7:171.42:131.33:460.56:587:37Third Quarter4Tue
5Wed12:251.47:19 AM1.43:281.44:360.46:597:36Third Quarter5Wed
6Thu1:411.55:280.46:597:35Third Quarter6Thu
7Fri2:321.66:190.37:007:33Third Quarter7Fri
8Sat3:081.67:100.37:007:32Waning Crescent8Sat
9Sun3:381.77:580.37:017:31Waning Crescent9Sun
10Mon4:051.712:451.59:191.48:430.37:017:30Waning Crescent10Mon
11Tue4:291.72:081.69:291.49:260.37:027:29Waning Crescent11Tue
12Wed4:541.63:241.69:521.210:080.47:027:27New Moon12Wed
13Thu5:171.64:351.710:261.010:510.67:037:26New Moon13Thu
14Fri5:401.65:451.711:080.811:370.87:037:25New Moon14Fri
15Sat6:031.66:561.711:580.77:047:24Waxing Crescent15Sat
16Sun6:251.68:121.712:271.112:550.57:047:22Waxing Crescent16Sun
17Mon6:461.69:371.71:261.31:580.47:057:21Waxing Crescent17Mon
18Tue7:061.611:071.82:491.53:030.37:057:20First Quarter18Tue
19Wed7:181.64:491.64:100.37:067:19First Quarter19Wed
20Thu12:321.85:180.37:067:18First Quarter20Thu
21Fri1:411.86:270.37:077:16First Quarter21Fri
22Sat2:341.811:35 AM1.59:281.57:320.47:077:15Waxing Gibbous22Sat
23Sun3:151.71:081.69:331.58:290.57:087:14Waxing Gibbous23Sun
24Mon3:481.72:211.69:471.49:160.67:087:13Waxing Gibbous24Mon
25Tue4:171.73:241.610:031.39:550.77:097:11Full Moon25Tue
26Wed4:411.64:201.610:211.110:280.97:097:10Full Moon26Wed
27Thu5:031.65:131.610:431.010:571.07:107:09Full Moon27Thu
28Fri5:201.66:031.611:100.911:241.17:117:08Full Moon28Fri
29Sat5:311.66:551.611:420.811:531.37:117:07Waning Gibbous29Sat
30Sun5:351.67:521.612:190.77:127:05Waning Gibbous30Sun
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 11:51 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 neap phase. Tonight's moon is 54% 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 minimum.

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 Third Quarter (54% illuminated). This places Galveston Pier 21, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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