Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 7:10 pm (-0.5 ft)
Next high tide (tomorrow) : in 6h 37m at 4:18 am (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:43 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:461.72:181.411:251.410:31-0.46:198:13Full Moon1Sun
2Mon6:351.72:541.412:261.46:198:14Full Moon2Mon
3Tue7:231.76:198:14Waning Gibbous3Tue
4Wed8:111.612:06-0.26:198:15Waning Gibbous4Wed
5Thu9:001.512:55-0.16:198:15Waning Gibbous5Thu
6Fri9:481.41:450.16:198:16Waning Gibbous6Fri
7Sat10:311.38:360.92:340.35:490.96:198:16Third Quarter7Sat
8Sun11:071.311:140.93:210.56:190.76:188:17Third Quarter8Sun
9Mon11:341.24:060.76:470.66:188:17Third Quarter9Mon
10Tue1:011.011:53 AM1.24:560.87:150.46:188:18Third Quarter10Tue
11Wed2:281.111:58 AM1.26:041.07:440.26:188:18Waning Crescent11Wed
12Thu3:381.211:47 AM1.27:411.18:140.16:188:18Waning Crescent12Thu
13Fri4:281.311:45 AM1.29:011.28:440.06:188:19Waning Crescent13Fri
14Sat5:061.412:021.310:021.29:15-0.16:198:19Waning Crescent14Sat
15Sun5:391.49:46-0.26:198:19New Moon15Sun
16Mon6:111.510:19-0.36:198:20New Moon16Mon
17Tue6:451.510:53-0.36:198:20New Moon17Tue
18Wed7:211.511:30-0.36:198:20New Moon18Wed
19Thu7:581.56:198:21Waxing Crescent19Thu
20Fri8:361.412:10-0.26:198:21Waxing Crescent20Fri
21Sat9:121.46:231.012:54-0.14:071.06:208:21Waxing Crescent21Sat
22Sun9:451.38:190.91:420.14:330.86:208:21First Quarter22Sun
23Mon10:141.310:350.92:330.35:060.66:208:21First Quarter23Mon
24Tue10:401.23:280.65:460.36:208:22First Quarter24Tue
25Wed12:261.011:02 AM1.24:310.86:300.16:218:22First Quarter25Wed
26Thu1:551.211:23 AM1.25:571.07:17-0.26:218:22Waxing Gibbous26Thu
27Fri3:091.311:44 AM1.38:041.28:05-0.46:218:22Waxing Gibbous27Fri
28Sat4:101.412:111.39:341.38:52-0.56:228:22Waxing Gibbous28Sat
29Sun5:001.512:481.310:311.39:37-0.56:228:22Full Moon29Sun
30Mon5:451.51:371.311:091.310:21-0.56:228:22Full Moon30Mon
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 11:44 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 32% 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 Third Quarter (32% 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