Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 10:21 pm (-0.3 ft)
Next high tide : in 1h 15m at 6:50 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 - Oct 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:441.712:261.68:051.57:480.67:127:05Waning Crescent1Wed
2Thu3:051.72:051.78:261.38:440.77:127:04Waning Crescent2Thu
3Fri3:261.73:261.89:001.09:370.97:137:03New Moon3Fri
4Sat3:471.74:381.99:410.710:261.17:137:02New Moon4Sat
5Sun4:081.75:442.010:250.511:141.37:147:01New Moon5Sun
6Mon4:291.76:482.011:130.37:146:59New Moon6Mon
7Tue4:491.77:542.012:041.512:050.27:156:58Waxing Crescent7Tue
8Wed5:091.89:062.01:021.71:020.27:166:57Waxing Crescent8Wed
9Thu5:221.810:281.92:371.82:040.27:166:56Waxing Crescent9Thu
10Fri11:551.83:090.37:176:55First Quarter10Fri
11Sat4:160.57:176:54First Quarter11Sat
12Sun1:021.85:230.67:186:53First Quarter12Sun
13Mon1:431.86:290.77:196:51First Quarter13Mon
14Tue2:131.712:391.59:101.47:300.87:196:50Waxing Gibbous14Tue
15Wed2:361.72:001.59:051.38:211.07:206:49Waxing Gibbous15Wed
16Thu2:561.63:071.69:141.19:031.17:206:48Waxing Gibbous16Thu
17Fri3:121.64:061.69:301.09:381.27:216:47Waxing Gibbous17Fri
18Sat3:231.64:571.79:510.810:091.37:226:46Full Moon18Sat
19Sun3:291.65:431.710:160.610:391.47:226:45Full Moon19Sun
20Mon3:311.66:271.810:440.511:081.57:236:44Full Moon20Mon
21Tue3:371.77:131.811:140.411:371.67:246:43Full Moon21Tue
22Wed3:461.78:041.811:480.47:246:42Waning Gibbous22Wed
23Thu3:501.79:031.812:081.712:260.37:256:41Waning Gibbous23Thu
24Fri10:131.81:090.37:266:40Waning Gibbous24Fri
25Sat11:241.81:580.47:266:39Waning Gibbous25Sat
26Sun11:131.81:530.46:275:38Third Quarter26Sun
27Mon11:451.82:520.56:285:37Third Quarter27Mon
28Tue3:570.66:285:37Third Quarter28Tue
29Wed12:101.710:21 AM1.56:271.35:090.86:295:36Waning Crescent29Wed
30Thu12:321.612:201.56:401.16:240.96:305:35Waning Crescent30Thu
31Fri12:531.61:461.77:100.87:331.16:315:34Waning Crescent31Fri
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 2:35 pm — 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