Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 1h 13m at 10:54 pm (-0.2 ft)
Next high tide (tomorrow) : 7:17 am (1.3 ft)
Sunset today : 8:13 pm
Sunrise tomorrow : 6:37 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:281.44:191.410:411.010:390.66:567:41Full Moon1Sun
2Mon5:401.45:201.311:150.911:060.76:577:40Full Moon2Mon
3Tue5:511.46:221.411:510.811:320.96:577:39Full Moon3Tue
4Wed5:591.47:271.412:300.66:587:38Waning Gibbous4Wed
5Thu6:041.48:421.412:001.11:110.56:587:37Waning Gibbous5Thu
6Fri6:081.510:151.512:301.31:560.46:597:35Waning Gibbous6Fri
7Sat6:061.51:011.42:460.36:597:34Third Quarter7Sat
8Sun5:241.63:410.27:007:33Third Quarter8Sun
9Mon4:421.74:410.27:007:32Third Quarter9Mon
10Tue5:081.75:450.17:017:31Third Quarter10Tue
11Wed3:001.76:510.17:017:29Waning Crescent11Wed
12Thu3:211.711:21 AM1.77:551.67:520.27:027:28Waning Crescent12Thu
13Fri3:431.71:161.78:171.48:490.37:027:27Waning Crescent13Fri
14Sat4:051.62:481.78:571.29:410.57:037:26New Moon14Sat
15Sun4:281.64:081.89:421.010:290.77:037:24New Moon15Sun
16Mon4:501.65:211.810:290.711:161.07:047:23New Moon16Mon
17Tue5:101.66:301.811:180.57:047:22New Moon17Tue
18Wed5:291.67:411.812:041.212:110.37:057:21Waxing Crescent18Wed
19Thu5:421.68:571.812:571.41:060.37:057:20Waxing Crescent19Thu
20Fri5:421.610:291.82:131.62:050.37:067:18Waxing Crescent20Fri
21Sat3:070.37:067:17First Quarter21Sat
22Sun12:321.84:090.47:077:16First Quarter22Sun
23Mon2:371.85:130.47:077:15First Quarter23Mon
24Tue3:141.76:150.57:087:13First Quarter24Tue
25Wed3:201.77:120.67:097:12Waxing Gibbous25Wed
26Thu3:261.78:020.77:097:11Waxing Gibbous26Thu
27Fri3:361.61:471.59:211.48:430.87:107:10Waxing Gibbous27Fri
28Sat3:481.62:581.59:281.29:180.97:107:09Waxing Gibbous28Sat
29Sun4:001.64:001.69:481.19:511.07:117:07Full Moon29Sun
30Mon4:101.64:561.610:130.910:211.17:117:06Full Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 3:05 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 100% 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 Full Moon (100% 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