Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 8:16 pm (-0.7 ft)
Next high tide : in 5h 11m at 4:37 am (1.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Crescent (19% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:291.66:231.710:590.711:111.47:127:04Full Moon1Fri
2Sat4:291.67:141.711:310.611:371.57:137:03Full Moon2Sat
3Sun4:311.68:091.712:060.57:137:02Waning Gibbous3Sun
4Mon4:361.79:161.812:051.612:470.57:147:01Waning Gibbous4Mon
5Tue4:311.710:411.812:331.71:320.57:147:00Waning Gibbous5Tue
6Wed2:220.57:156:59Waning Gibbous6Wed
7Thu12:221.83:170.57:156:57Third Quarter7Thu
8Fri1:161.84:150.57:166:56Third Quarter8Fri
9Sat1:411.85:170.57:176:55Third Quarter9Sat
10Sun2:011.86:220.67:176:54Waning Crescent10Sun
11Mon2:191.712:231.68:031.47:270.77:186:53Waning Crescent11Mon
12Tue2:371.72:051.78:171.28:270.97:186:52Waning Crescent12Tue
13Wed2:551.73:251.88:480.99:231.17:196:51Waning Crescent13Wed
14Thu3:131.64:362.09:260.610:141.37:206:50New Moon14Thu
15Fri3:311.75:402.110:090.311:031.57:206:49New Moon15Fri
16Sat3:491.76:412.110:550.111:521.67:216:48New Moon16Sat
17Sun4:091.87:442.111:450.17:216:46Waxing Crescent17Sun
18Mon4:291.88:512.012:471.712:410.17:226:45Waxing Crescent18Mon
19Tue4:461.810:081.92:191.81:410.17:236:44Waxing Crescent19Tue
20Wed11:291.82:460.37:236:43First Quarter20Wed
21Thu3:520.47:246:42First Quarter21Thu
22Fri12:341.84:590.67:256:41First Quarter22Fri
23Sat1:141.76:070.77:256:41First Quarter23Sat
24Sun1:431.712:381.48:441.37:120.97:266:40Waxing Gibbous24Sun
25Mon2:071.62:041.58:481.18:091.07:276:39Waxing Gibbous25Mon
26Tue2:261.63:151.59:021.08:571.27:286:38Waxing Gibbous26Tue
27Wed2:411.54:151.69:190.89:371.37:286:37Waxing Gibbous27Wed
28Thu2:491.55:051.79:400.610:111.47:296:36Full Moon28Thu
29Fri2:481.65:491.710:050.510:411.57:306:35Full Moon29Fri
30Sat2:451.66:301.810:320.411:101.67:306:34Full Moon30Sat
31Sun1:521.66:131.810:020.310:391.66:315:33Full Moon31Sun
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 12:26 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 19% 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 Crescent (19% 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