Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 3h 28m at 2:09 am (0.4 ft)
Next high tide (tomorrow) : 9:49 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Apr 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:221.13:171.27:570.28:320.96:076:37Waning Crescent1Sat
2Sun1:421.14:341.29:380.29:510.77:067:38Waning Crescent2Sun
3Mon3:481.24:511.210:170.410:160.67:057:38New Moon3Mon
4Tue4:491.35:061.110:560.510:470.47:047:39New Moon4Tue
5Wed5:491.45:191.111:390.711:230.27:037:40New Moon5Wed
6Thu6:491.55:311.112:310.97:027:40Waxing Crescent6Thu
7Fri7:541.55:411.212:060.11:391.17:017:41Waxing Crescent7Fri
8Sat9:051.55:461.212:56-0.13:171.26:597:41Waxing Crescent8Sat
9Sun10:241.51:53-0.16:587:42Waxing Crescent9Sun
10Mon11:431.52:55-0.16:577:42First Quarter10Mon
11Tue12:521.54:04-0.16:567:43First Quarter11Tue
12Wed1:481.55:180.06:557:44First Quarter12Wed
13Thu2:321.46:370.18:291.16:547:44Waxing Gibbous13Thu
14Fri12:261.33:071.37:510.28:501.06:537:45Waxing Gibbous14Fri
15Sat1:591.33:381.38:560.39:180.86:527:45Waxing Gibbous15Sat
16Sun3:151.44:041.29:520.59:490.66:517:46Waxing Gibbous16Sun
17Mon4:221.44:271.210:410.710:220.46:507:47Full Moon17Mon
18Tue5:221.54:461.211:280.910:550.36:497:47Full Moon18Tue
19Wed6:171.54:551.212:181.06:477:48Full Moon19Wed
20Thu7:111.54:431.21:221.16:467:48Waning Gibbous20Thu
21Fri8:061.512:050.16:457:49Waning Gibbous21Fri
22Sat9:051.512:460.16:447:50Waning Gibbous22Sat
23Sun10:121.51:300.26:437:50Waning Gibbous23Sun
24Mon11:231.52:200.26:437:51Waning Gibbous24Mon
25Tue12:251.53:140.26:427:51Third Quarter25Tue
26Wed1:121.44:120.36:417:52Third Quarter26Wed
27Thu1:481.45:130.46:407:53Third Quarter27Thu
28Fri2:151.46:160.48:471.16:397:53Third Quarter28Fri
29Sat12:111.12:371.47:170.58:450.96:387:54Waning Crescent29Sat
30Sun1:551.22:551.38:130.68:580.86:377:55Waning Crescent30Sun
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 5:59 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 72% 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 Waning Gibbous (72% 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