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 5h 00m 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 2086

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:281.512:52-0.16:208:14Waning Gibbous1Sat
2Sun10:061.51:410.06:198:15Waning Gibbous2Sun
3Mon10:371.49:001.02:340.25:200.96:198:15Third Quarter3Mon
4Tue11:021.311:351.13:310.55:450.76:198:16Third Quarter4Tue
5Wed11:231.34:340.76:220.46:198:16Third Quarter5Wed
6Thu1:211.211:39 AM1.35:581.07:050.16:198:16Waning Crescent6Thu
7Fri2:461.411:52 AM1.37:531.27:50-0.26:198:17Waning Crescent7Fri
8Sat3:561.512:011.39:361.38:35-0.46:198:17Waning Crescent8Sat
9Sun4:531.69:21-0.56:198:18Waning Crescent9Sun
10Mon5:421.710:06-0.56:198:18New Moon10Mon
11Tue6:281.710:51-0.46:198:19New Moon11Tue
12Wed7:111.611:35-0.36:198:19New Moon12Wed
13Thu7:541.56:198:19Waxing Crescent13Thu
14Fri8:371.412:19-0.26:198:20Waxing Crescent14Fri
15Sat9:181.31:030.06:198:20Waxing Crescent15Sat
16Sun9:541.37:030.91:440.24:500.96:198:20Waxing Crescent16Sun
17Mon10:231.29:510.82:220.45:210.76:198:21First Quarter17Mon
18Tue10:431.22:560.65:530.56:198:21First Quarter18Tue
19Wed12:120.910:50 AM1.13:250.86:250.36:208:21First Quarter19Wed
20Thu10:281.16:580.26:208:21First Quarter20Thu
21Fri9:591.27:320.06:208:21Waxing Gibbous21Fri
22Sat4:471.38:07-0.26:208:22Waxing Gibbous22Sat
23Sun5:051.48:41-0.36:218:22Waxing Gibbous23Sun
24Mon5:291.49:16-0.46:218:22Waxing Gibbous24Mon
25Tue5:561.59:52-0.46:218:22Full Moon25Tue
26Wed6:261.510:29-0.46:228:22Full Moon26Wed
27Thu6:591.511:08-0.46:228:22Full Moon27Thu
28Fri7:311.411:49-0.36:228:22Full Moon28Fri
29Sat8:041.44:211.22:151.26:238:22Waning Gibbous29Sat
30Sun8:341.36:081.012:33-0.22:511.06:238:22Waning Gibbous30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
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