Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 30, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 11:24 pm (-0.1 ft)
Next high tide : in 5h 02m at 7:17 am (1.3 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:38 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2080

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:441.68:041.812:010.57:137:03Waning Gibbous1Tue
2Wed4:261.79:201.912:271.612:400.37:137:02Waning Gibbous2Wed
3Thu10:562.01:280.27:147:01Waning Gibbous3Thu
4Fri2:240.27:147:00Third Quarter4Fri
5Sat1:092.03:290.27:156:59Third Quarter5Sat
6Sun3:022.04:390.27:156:58Third Quarter6Sun
7Mon3:062.05:540.27:166:56Third Quarter7Mon
8Tue3:051.97:060.37:176:55Waning Crescent8Tue
9Wed3:161.812:271.78:341.68:120.57:176:54Waning Crescent9Wed
10Thu3:311.72:181.88:481.39:100.77:186:53Waning Crescent10Thu
11Fri3:461.73:451.89:211.010:031.07:186:52New Moon11Fri
12Sat4:001.65:001.99:590.710:551.27:196:51New Moon12Sat
13Sun4:101.66:092.010:380.511:501.57:206:50New Moon13Sun
14Mon4:111.67:142.011:190.37:206:49New Moon14Mon
15Tue3:411.78:212.01:171.712:020.27:216:48Waxing Crescent15Tue
16Wed9:392.012:480.27:216:47Waxing Crescent16Wed
17Thu11:401.91:380.27:226:46Waxing Crescent17Thu
18Fri2:340.37:236:45First Quarter18Fri
19Sat1:571.93:350.47:236:44First Quarter19Sat
20Sun2:441.94:380.57:246:43First Quarter20Sun
21Mon3:031.85:420.67:256:42First Quarter21Mon
22Tue2:581.86:410.77:256:41First Quarter22Tue
23Wed2:581.77:340.87:266:40Waxing Gibbous23Wed
24Thu3:021.62:051.49:191.28:200.97:276:39Waxing Gibbous24Thu
25Fri3:071.63:241.59:231.09:031.17:276:38Waxing Gibbous25Fri
26Sat3:091.64:291.69:390.89:441.27:286:37Waxing Gibbous26Sat
27Sun3:081.65:251.79:590.610:271.47:296:36Full Moon27Sun
28Mon3:031.66:171.910:230.311:161.67:306:35Full Moon28Mon
29Tue2:551.67:091.910:530.27:306:34Full Moon29Tue
30Wed8:062.011:280.07:316:34Waning Gibbous30Wed
31Thu9:142.012:11-0.17:326:33Waning Gibbous31Thu
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 3:20 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