Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, August 1, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 4h 25m at 12:24 am (0.3 ft)
Next high tide (tomorrow) : 8:00 am (1.2 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:261.51:380.06:198:14Waxing Crescent1Sat
2Sun11:521.52:260.16:198:14First Quarter2Sun
3Mon12:081.43:150.26:198:15First Quarter3Mon
4Tue12:171.34:070.47:050.86:198:15First Quarter4Tue
5Wed12:191.25:080.77:100.56:198:16First Quarter5Wed
6Thu1:491.212:141.26:310.97:330.16:198:16Waxing Gibbous6Thu
7Fri3:131.411:59 AM1.28:271.28:08-0.26:198:17Waxing Gibbous7Fri
8Sat4:211.68:49-0.56:188:17Waxing Gibbous8Sat
9Sun5:181.89:35-0.76:188:17Full Moon9Sun
10Mon6:121.910:24-0.86:188:18Full Moon10Mon
11Tue7:041.811:16-0.76:188:18Full Moon11Tue
12Wed7:581.76:188:19Waning Gibbous12Wed
13Thu8:541.612:13-0.66:198:19Waning Gibbous13Thu
14Fri9:501.51:13-0.46:198:19Waning Gibbous14Fri
15Sat10:351.42:13-0.26:198:20Waning Gibbous15Sat
16Sun11:081.39:081.03:110.15:550.96:198:20Third Quarter16Sun
17Mon11:331.211:490.94:070.46:290.76:198:20Third Quarter17Mon
18Tue11:501.25:030.77:010.46:198:20Third Quarter18Tue
19Wed1:491.011:55 AM1.16:170.97:310.26:198:21Third Quarter19Wed
20Thu3:391.211:04 AM1.18:451.17:580.06:208:21Waning Crescent20Thu
21Fri4:591.38:26-0.26:208:21Waning Crescent21Fri
22Sat5:411.58:55-0.36:208:21Waning Crescent22Sat
23Sun6:101.59:27-0.36:208:22Waning Crescent23Sun
24Mon6:371.510:00-0.46:208:22New Moon24Mon
25Tue7:071.510:35-0.46:218:22New Moon25Tue
26Wed7:431.511:12-0.46:218:22New Moon26Wed
27Thu8:231.511:49-0.36:218:22New Moon27Thu
28Fri9:051.46:228:22Waxing Crescent28Fri
29Sat9:421.412:28-0.26:228:22Waxing Crescent29Sat
30Sun10:081.31:08-0.16:228:22Waxing Crescent30Sun
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 4:12 am — 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 91% 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 (91% 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