Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 6:20 pm (-0.1 ft)
Next high tide : in 1h 02m at 4:31 am (1.2 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:091.711:59-0.46:198:14Waxing Crescent1Fri
2Sat9:041.76:198:14Waxing Crescent2Sat
3Sun10:051.612:49-0.36:198:15Waxing Crescent3Sun
4Mon10:581.61:44-0.26:198:15Waxing Crescent4Mon
5Tue11:351.52:44-0.16:198:16First Quarter5Tue
6Wed12:031.43:460.16:381.06:198:16First Quarter6Wed
7Thu12:241.34:510.46:550.76:198:17First Quarter7Thu
8Fri12:361.112:411.26:080.77:270.36:198:17Waxing Gibbous8Fri
9Sat2:161.312:531.27:440.98:040.06:188:17Waxing Gibbous9Sat
10Sun3:391.412:531.29:271.18:43-0.26:188:18Waxing Gibbous10Sun
11Mon4:471.69:23-0.46:188:18Waxing Gibbous11Mon
12Tue5:431.710:04-0.56:198:19Full Moon12Tue
13Wed6:331.710:45-0.56:198:19Full Moon13Wed
14Thu7:201.711:28-0.46:198:19Full Moon14Thu
15Fri8:091.66:198:20Waning Gibbous15Fri
16Sat9:011.512:13-0.36:198:20Waning Gibbous16Sat
17Sun9:561.41:00-0.26:198:20Waning Gibbous17Sun
18Mon10:421.31:470.06:198:21Waning Gibbous18Mon
19Tue11:151.32:340.16:198:21Third Quarter19Tue
20Wed11:371.23:180.36:208:21Third Quarter20Wed
21Thu11:511.24:000.57:010.66:208:21Third Quarter21Thu
22Fri12:460.811:55 AM1.14:430.77:160.46:208:21Third Quarter22Fri
23Sat2:261.011:43 AM1.15:440.97:390.26:208:22Waning Crescent23Sat
24Sun3:431.111:23 AM1.27:351.18:050.06:218:22Waning Crescent24Sun
25Mon4:351.38:34-0.26:218:22Waning Crescent25Mon
26Tue5:151.49:05-0.46:218:22Waning Crescent26Tue
27Wed5:511.59:39-0.56:218:22New Moon27Wed
28Thu6:291.610:18-0.66:228:22New Moon28Thu
29Fri7:101.611:00-0.66:228:22New Moon29Fri
30Sat7:541.611:47-0.56:238:22New Moon30Sat
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 11:25 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 62% 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 First Quarter (62% 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