Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 3h 19m at 2:09 am (0.4 ft)
Next high tide (tomorrow) : 9:49 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2053

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:481.47:331.31:020.76:577:40Waning Gibbous1Mon
2Tue7:031.48:541.412:360.91:500.66:577:39Waning Gibbous2Tue
3Wed7:161.410:281.41:201.12:400.56:587:38Waning Gibbous3Wed
4Thu7:291.511:581.52:141.33:340.36:587:37Third Quarter4Thu
5Fri7:411.53:251.54:320.26:597:36Third Quarter5Fri
6Sat1:111.65:340.26:597:34Third Quarter6Sat
7Sun2:081.76:380.17:007:33Waning Crescent7Sun
8Mon2:551.711:20 AM1.68:141.57:400.17:007:32Waning Crescent8Mon
9Tue3:341.712:581.68:371.48:370.27:017:31Waning Crescent9Tue
10Wed4:091.72:221.79:081.39:300.37:017:30Waning Crescent10Wed
11Thu4:411.63:371.79:461.110:180.47:027:28New Moon11Thu
12Fri5:111.64:461.710:291.011:030.67:027:27New Moon12Fri
13Sat5:391.65:511.711:150.811:470.97:037:26New Moon13Sat
14Sun6:061.56:561.712:040.77:037:25Waxing Crescent14Sun
15Mon6:301.58:051.612:331.112:570.67:047:23Waxing Crescent15Mon
16Tue6:461.59:241.61:231.31:520.57:047:22Waxing Crescent16Tue
17Wed6:451.510:551.62:331.42:480.57:057:21Waxing Crescent17Wed
18Thu3:440.57:057:20First Quarter18Thu
19Fri12:291.64:400.57:067:19First Quarter19Fri
20Sat1:431.75:380.57:067:17First Quarter20Sat
21Sun2:301.76:350.67:077:16First Quarter21Sun
22Mon3:021.77:270.67:077:15Waxing Gibbous22Mon
23Tue3:261.712:171.59:321.58:130.67:087:14Waxing Gibbous23Tue
24Wed3:481.71:501.59:271.48:540.77:087:12Waxing Gibbous24Wed
25Thu4:081.72:571.59:431.39:300.77:097:11Waxing Gibbous25Thu
26Fri4:271.63:571.610:051.110:040.87:107:10Full Moon26Fri
27Sat4:441.64:531.610:301.010:361.07:107:09Full Moon27Sat
28Sun5:001.65:481.710:590.811:101.17:117:08Full Moon28Sun
29Mon5:161.66:451.711:320.711:471.37:117:06Full Moon29Mon
30Tue5:301.67:471.812:120.67:127:05Waning Gibbous30Tue
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 5:59 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 transitional phase. Tonight's moon is 72% 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 Gibbous (72% 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