Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 13h 57m at 1:32 am (0.2 ft)
Next high tide (tomorrow) : 9:44 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2002

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:181.66:160.16:567:41Third Quarter1Sun
2Mon3:531.77:090.06:577:40Waning Crescent2Mon
3Tue4:221.78:010.06:577:39Waning Crescent3Tue
4Wed4:471.78:510.06:587:37Waning Crescent4Wed
5Thu5:101.71:251.69:281.59:380.06:587:36New Moon5Thu
6Fri5:331.72:571.79:471.410:250.16:597:35New Moon6Fri
7Sat5:541.64:221.710:271.211:110.46:597:34New Moon7Sat
8Sun6:141.55:441.711:170.97:007:33New Moon8Sun
9Mon6:321.57:061.712:010.612:140.77:007:32Waxing Crescent9Mon
10Tue6:471.58:351.712:551.01:160.57:017:30Waxing Crescent10Tue
11Wed6:561.510:151.72:061.32:200.37:017:29Waxing Crescent11Wed
12Thu6:451.53:581.53:240.27:027:28First Quarter12Thu
13Fri12:001.84:280.17:027:27First Quarter13Fri
14Sat1:371.95:350.17:037:25First Quarter14Sat
15Sun2:531.96:420.27:037:24Waxing Gibbous15Sun
16Mon3:461.87:450.27:047:23Waxing Gibbous16Mon
17Tue4:201.88:400.37:047:22Waxing Gibbous17Tue
18Wed4:431.71:391.510:451.59:250.47:057:21Waxing Gibbous18Wed
19Thu5:021.72:511.610:251.410:010.57:067:19Full Moon19Thu
20Fri5:181.63:531.610:281.310:310.77:067:18Full Moon20Fri
21Sat5:331.64:511.610:471.210:580.87:077:17Full Moon21Sat
22Sun5:451.55:481.611:161.011:241.07:077:16Full Moon22Sun
23Mon5:511.56:481.611:510.911:521.27:087:14Waning Gibbous23Mon
24Tue5:501.57:541.612:290.77:087:13Waning Gibbous24Tue
25Wed5:431.59:121.612:251.41:100.67:097:12Waning Gibbous25Wed
26Thu5:331.610:471.71:101.51:540.67:097:11Waning Gibbous26Thu
27Fri2:410.57:107:10Waning Gibbous27Fri
28Sat12:271.83:320.47:107:08Third Quarter28Sat
29Sun1:411.94:280.47:117:07Third Quarter29Sun
30Mon2:291.95:300.47:117:06Third Quarter30Mon
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 5:38 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 spring phase. Tonight's moon is 80% 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 maximum.

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 (80% illuminated). This places Galveston Pier 21, TX in a spring tide cycle, so tidal ranges are near their weekly maximum 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