Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 34m at 1:31 pm (1.1 ft)
Next high tide : 3:56 pm (1.1 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Dec 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:541.32:040.36:565:20Third Quarter1Wed
2Thu11:001.22:500.56:565:20Third Quarter2Thu
3Fri11:340.910:581.16:090.63:470.76:575:20Third Quarter3Fri
4Sat1:181.16:180.35:190.96:585:20Waning Crescent4Sat
5Sun2:321.36:410.07:341.16:595:20Waning Crescent5Sun
6Mon3:301.57:15-0.36:595:20Waning Crescent6Mon
7Tue4:201.67:54-0.67:005:20New Moon7Tue
8Wed5:091.78:39-0.87:015:20New Moon8Wed
9Thu5:571.69:27-0.99:411.57:025:21New Moon9Thu
10Fri12:511.56:471.510:19-0.99:541.47:025:21New Moon10Fri
11Sat2:031.57:371.411:13-0.810:301.37:035:21Waxing Crescent11Sat
12Sun3:151.48:261.212:09-0.67:045:21Waxing Crescent12Sun
13Mon4:281.29:071.11:06-0.37:045:22Waxing Crescent13Mon
14Tue5:591.09:411.02:410.92:020.07:055:22First Quarter14Tue
15Wed8:280.810:081.04:040.72:580.37:055:22First Quarter15Wed
16Thu11:020.810:280.95:050.44:010.67:065:23First Quarter16Thu
17Fri1:130.95:540.15:530.87:075:23First Quarter17Fri
18Sat3:141.06:34-0.17:075:24Waxing Gibbous18Sat
19Sun4:181.27:09-0.37:085:24Waxing Gibbous19Sun
20Mon4:531.27:42-0.47:085:24Waxing Gibbous20Mon
21Tue5:191.28:14-0.57:095:25Waxing Gibbous21Tue
22Wed5:441.28:47-0.67:095:25Full Moon22Wed
23Thu6:111.29:20-0.67:105:26Full Moon23Thu
24Fri6:421.19:53-0.69:541.17:105:26Full Moon24Fri
25Sat7:151.110:27-0.67:115:27Full Moon25Sat
26Sun7:481.011:00-0.67:115:28Waning Gibbous26Sun
27Mon8:181.011:32-0.57:115:28Waning Gibbous27Mon
28Tue8:410.912:04-0.37:125:29Waning Gibbous28Tue
29Wed8:560.912:36-0.17:125:30Waning Gibbous29Wed
30Thu6:410.59:010.84:050.51:090.17:125:30Third Quarter30Thu
31Fri9:540.58:450.84:180.21:460.37:135:31Third Quarter31Fri
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 2:43 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 96% 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 (96% 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