Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 1h 04m at 3:07 pm (0.5 ft)
Next high tide : 9:30 pm (1.0 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Dec 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:171.24:081.48:310.09:571.16:565:20Waning Crescent1Tue
2Wed1:101.24:561.48:57-0.16:575:20New Moon2Wed
3Thu5:371.59:24-0.26:575:20New Moon3Thu
4Fri6:171.59:52-0.36:585:20New Moon4Fri
5Sat6:591.410:24-0.36:595:20New Moon5Sat
6Sun7:471.410:59-0.37:005:20Waxing Crescent6Sun
7Mon8:441.311:37-0.37:005:20Waxing Crescent7Mon
8Tue9:431.312:18-0.27:015:21Waxing Crescent8Tue
9Wed10:271.31:01-0.17:025:21Waxing Crescent9Wed
10Thu10:561.21:450.07:025:21First Quarter10Thu
11Fri11:161.22:310.17:035:21First Quarter11Fri
12Sat11:301.13:210.37:045:22First Quarter12Sat
13Sun11:500.711:391.06:470.54:260.57:045:22First Quarter13Sun
14Mon1:260.96:500.25:530.77:055:22Waxing Gibbous14Mon
15Tue2:361.17:08-0.17:260.97:065:23Waxing Gibbous15Tue
16Wed3:331.37:37-0.48:391.07:065:23Waxing Gibbous16Wed
17Thu12:011.14:241.48:13-0.69:351.17:075:23Full Moon17Thu
18Fri12:191.25:141.58:54-0.810:121.27:075:24Full Moon18Fri
19Sat12:501.26:031.59:39-1.010:331.27:085:24Full Moon19Sat
20Sun1:341.36:541.410:29-1.010:591.27:095:25Waning Gibbous20Sun
21Mon2:311.27:481.311:22-0.911:591.17:095:25Waning Gibbous21Mon
22Tue3:341.28:421.212:19-0.77:105:26Waning Gibbous22Tue
23Wed4:431.09:301.12:051.01:17-0.57:105:26Waning Gibbous23Wed
24Thu6:120.810:101.03:310.82:16-0.27:105:27Third Quarter24Thu
25Fri8:410.710:430.94:390.63:160.17:115:27Third Quarter25Fri
26Sat11:060.611:110.85:350.34:250.47:115:28Third Quarter26Sat
27Sun1:010.76:210.06:080.67:125:28Waning Crescent27Sun
28Mon2:410.87:00-0.28:190.77:125:29Waning Crescent28Mon
29Tue3:541.07:34-0.47:125:30Waning Crescent29Tue
30Wed4:371.08:05-0.57:135:30Waning Crescent30Wed
31Thu5:081.18:35-0.67:135:31Waning Crescent31Thu
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 6:18 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 transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 (75% illuminated). This places Galveston Pier 21, TX in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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