Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 12:57 am (0.5 ft)
Next high tide : in 30m at 7:25 pm (0.9 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:151.67:061.711:460.711:471.47:127:05Full Moon1Sat
2Sun5:101.68:121.712:200.67:127:04Waning Gibbous2Sun
3Mon5:001.69:291.812:251.512:580.57:137:03Waning Gibbous3Mon
4Tue11:041.81:400.47:137:01Waning Gibbous4Tue
5Wed2:290.47:147:00Third Quarter5Wed
6Thu12:451.93:250.37:156:59Third Quarter6Thu
7Fri1:592.04:290.37:156:58Third Quarter7Fri
8Sat2:392.05:370.37:166:57Third Quarter8Sat
9Sun3:032.06:470.37:166:56Waning Crescent9Sun
10Mon3:211.911:26 AM1.79:051.77:520.47:176:55Waning Crescent10Mon
11Tue3:381.81:401.88:461.58:510.67:176:53Waning Crescent11Tue
12Wed3:551.73:151.89:101.29:450.87:186:52New Moon12Wed
13Thu4:101.74:351.99:470.910:381.07:196:51New Moon13Thu
14Fri4:241.65:482.010:300.611:321.37:196:50New Moon14Fri
15Sat4:341.66:582.111:150.37:206:49New Moon15Sat
16Sun4:351.78:092.112:401.612:040.27:216:48Waxing Crescent16Sun
17Mon9:292.112:570.17:216:47Waxing Crescent17Mon
18Tue11:042.01:540.17:226:46Waxing Crescent18Tue
19Wed2:560.27:226:45First Quarter19Wed
20Thu12:502.04:010.37:236:44First Quarter20Thu
21Fri2:011.95:090.57:246:43First Quarter21Fri
22Sat2:391.96:170.67:246:42First Quarter22Sat
23Sun2:591.87:190.77:256:41Waxing Gibbous23Sun
24Mon3:121.71:161.410:101.48:100.87:266:40Waxing Gibbous24Mon
25Tue3:231.62:391.59:381.28:520.97:276:39Waxing Gibbous25Tue
26Wed3:321.63:461.59:421.09:281.17:276:38Waxing Gibbous26Wed
27Thu3:381.64:461.69:580.810:021.27:286:37Full Moon27Thu
28Fri3:381.65:391.710:190.610:361.47:296:36Full Moon28Fri
29Sat3:331.66:281.810:430.511:141.57:296:36Full Moon29Sat
30Sun2:261.66:181.810:110.311:051.66:305:35Full Moon30Sun
31Mon2:111.67:131.910:420.26:315:34Waning Gibbous31Mon
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 10:11 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 84% 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 (84% 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