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 9h 35m 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 - Dec 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:551.412:510.06:565:20Waning Gibbous1Sat
2Sun10:321.31:390.16:565:20Third Quarter2Sun
3Mon11:011.32:320.26:575:20Third Quarter3Mon
4Tue9:330.911:251.26:110.83:330.46:585:20Third Quarter4Tue
5Wed11:520.911:461.26:180.64:470.66:595:20Waning Crescent5Wed
6Thu1:201.16:420.36:140.86:595:20Waning Crescent6Thu
7Fri12:071.22:311.37:160.07:350.97:005:20Waning Crescent7Fri
8Sat12:301.23:311.47:54-0.38:381.07:015:20Waning Crescent8Sat
9Sun12:561.24:251.58:36-0.59:271.17:025:21New Moon9Sun
10Mon1:271.35:161.59:20-0.610:091.27:025:21New Moon10Mon
11Tue2:051.36:061.510:07-0.710:531.27:035:21New Moon11Tue
12Wed2:461.36:561.410:55-0.611:581.17:045:21Waxing Crescent12Wed
13Thu3:291.27:491.311:46-0.57:045:22Waxing Crescent13Thu
14Fri4:131.18:421.21:431.112:38-0.37:055:22Waxing Crescent14Fri
15Sat9:321.11:30-0.17:055:22Waxing Crescent15Sat
16Sun10:161.12:210.17:065:23First Quarter16Sun
17Mon9:260.610:511.05:450.63:120.37:075:23First Quarter17Mon
18Tue11:350.611:200.96:180.44:080.57:075:24First Quarter18Tue
19Wed1:140.76:460.25:250.67:085:24First Quarter19Wed
20Thu2:350.87:110.06:570.87:085:24Waxing Gibbous20Thu
21Fri3:310.97:37-0.18:070.87:095:25Waxing Gibbous21Fri
22Sat4:101.08:03-0.38:530.97:095:25Waxing Gibbous22Sat
23Sun4:421.18:31-0.49:260.97:105:26Waxing Gibbous23Sun
24Mon12:090.95:121.19:00-0.59:550.97:105:27Full Moon24Mon
25Tue12:421.05:441.19:29-0.610:250.97:115:27Full Moon25Tue
26Wed1:171.06:191.110:00-0.611:080.97:115:28Full Moon26Wed
27Thu1:500.96:551.110:32-0.67:115:28Full Moon27Thu
28Fri7:341.011:07-0.57:125:29Waning Gibbous28Fri
29Sat8:131.011:44-0.57:125:30Waning Gibbous29Sat
30Sun8:490.912:24-0.37:125:30Waning Gibbous30Sun
31Mon9:320.91:09-0.27:135:31Third Quarter31Mon
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