Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 3h 45m at 5:13 pm (-0.2 ft)
Next high tide (tomorrow) : 4:50 am (1.5 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 2093

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:021.43:110.36:198:14First Quarter1Mon
2Tue12:271.34:000.47:350.86:198:15First Quarter2Tue
3Wed12:441.34:540.67:390.76:198:15First Quarter3Wed
4Thu1:121.012:551.25:590.77:550.46:198:16Waxing Gibbous4Thu
5Fri2:321.11:021.27:160.98:170.26:198:16Waxing Gibbous5Fri
6Sat3:381.31:081.28:351.18:460.06:198:17Waxing Gibbous6Sat
7Sun4:341.51:161.39:451.29:20-0.36:198:17Waxing Gibbous7Sun
8Mon5:261.61:261.310:511.310:00-0.56:198:17Full Moon8Mon
9Tue6:161.710:45-0.66:198:18Full Moon9Tue
10Wed7:061.711:35-0.66:198:18Full Moon10Wed
11Thu7:591.76:198:19Waning Gibbous11Thu
12Fri8:531.612:30-0.56:198:19Waning Gibbous12Fri
13Sat9:461.51:30-0.36:198:19Waning Gibbous13Sat
14Sun10:351.47:581.12:32-0.15:141.06:198:20Third Quarter14Sun
15Mon11:161.310:301.03:360.15:590.86:198:20Third Quarter15Mon
16Tue11:511.34:420.46:440.66:198:20Third Quarter16Tue
17Wed12:291.012:211.25:550.77:260.36:198:21Third Quarter17Wed
18Thu2:061.112:441.27:240.98:040.16:208:21Waning Crescent18Thu
19Fri3:291.212:581.19:011.08:370.06:208:21Waning Crescent19Fri
20Sat4:361.39:08-0.16:208:21Waning Crescent20Sat
21Sun5:261.49:38-0.26:208:22Waning Crescent21Sun
22Mon6:061.510:07-0.36:208:22New Moon22Mon
23Tue6:411.510:38-0.36:218:22New Moon23Tue
24Wed7:171.411:10-0.26:218:22New Moon24Wed
25Thu7:541.411:46-0.26:218:22New Moon25Thu
26Fri8:341.46:228:22Waxing Crescent26Fri
27Sat9:151.412:23-0.16:228:22Waxing Crescent27Sat
28Sun9:541.31:020.06:228:22Waxing Crescent28Sun
29Mon10:271.31:420.16:238:22Waxing Crescent29Mon
30Tue10:521.28:530.82:230.26:100.76:238:22First Quarter30Tue
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 11:01 pm — 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 43% 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 (43% 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