Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 9h 18m at 10:21 pm (-0.3 ft)
Next high tide (tomorrow) : 7:01 am (1.4 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 6:37 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri6:001.42:571.43:280.36:577:41First Quarter1Fri
2Sat2:101.54:180.36:577:39First Quarter2Sat
3Sun3:221.65:110.26:587:38First Quarter3Sun
4Mon4:111.76:070.26:587:37First Quarter4Mon
5Tue4:531.77:040.26:597:36Waxing Gibbous5Tue
6Wed5:191.77:560.26:597:35Waxing Gibbous6Wed
7Thu5:191.78:410.27:007:34Waxing Gibbous7Thu
8Fri5:181.79:200.27:007:32Waxing Gibbous8Fri
9Sat5:251.61:471.510:111.49:550.37:017:31Full Moon9Sat
10Sun5:361.63:171.510:281.310:280.57:017:30Full Moon10Sun
11Mon5:461.64:381.510:561.111:010.67:027:29Full Moon11Mon
12Tue5:551.55:541.511:290.911:370.97:027:27Full Moon12Tue
13Wed6:011.57:111.612:070.77:037:26Waning Gibbous13Wed
14Thu6:021.58:361.712:181.212:520.57:037:25Waning Gibbous14Thu
15Fri5:531.510:131.81:121.41:420.37:047:24Waning Gibbous15Fri
16Sat11:591.92:380.17:047:23Third Quarter16Sat
17Sun3:410.17:057:21Third Quarter17Sun
18Mon1:381.94:490.07:057:20Third Quarter18Mon
19Tue2:552.06:020.07:067:19Third Quarter19Tue
20Wed3:391.97:140.17:067:18Waning Crescent20Wed
21Thu4:031.98:190.27:077:16Waning Crescent21Thu
22Fri4:211.81:281.79:131.69:150.37:077:15Waning Crescent22Fri
23Sat4:391.72:581.79:341.410:030.57:087:14New Moon23Sat
24Sun4:571.64:161.710:091.210:450.87:087:13New Moon24Sun
25Mon5:131.65:261.710:470.911:241.07:097:12New Moon25Mon
26Tue5:251.66:331.811:260.77:097:10New Moon26Tue
27Wed5:271.57:421.812:021.312:060.67:107:09Waxing Crescent27Wed
28Thu5:031.68:581.812:461.512:480.57:107:08Waxing Crescent28Thu
29Fri10:331.81:320.47:117:07Waxing Crescent29Fri
30Sat2:210.47:127:06Waxing Crescent30Sat
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 2:41 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 99% 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 Full Moon (99% 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