Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 7:04 pm (-0.2 ft)
Next high tide : in 2h 51m at 5:07 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:411.611:15-0.26:198:14Full Moon1Wed
2Thu7:261.611:55-0.16:198:15Full Moon2Thu
3Fri8:131.56:198:15Waning Gibbous3Fri
4Sat9:011.512:360.06:198:16Waning Gibbous4Sat
5Sun9:491.41:190.16:198:16Waning Gibbous5Sun
6Mon10:341.42:040.26:198:17Waning Gibbous6Mon
7Tue11:111.32:490.36:198:17Third Quarter7Tue
8Wed11:391.311:420.83:350.56:540.76:198:17Third Quarter8Wed
9Thu12:011.24:230.67:110.66:198:18Third Quarter9Thu
10Fri1:220.912:141.25:190.87:360.46:198:18Third Quarter10Fri
11Sat2:371.012:221.26:350.98:020.26:198:19Waning Crescent11Sat
12Sun3:371.212:311.28:001.18:300.06:198:19Waning Crescent12Sun
13Mon4:241.312:451.29:111.18:59-0.16:198:19Waning Crescent13Mon
14Tue5:061.41:051.310:091.29:31-0.36:198:20New Moon14Tue
15Wed5:461.51:291.311:011.310:07-0.46:198:20New Moon15Wed
16Thu6:261.61:591.311:551.310:46-0.46:198:20New Moon16Thu
17Fri7:091.611:30-0.46:198:21New Moon17Fri
18Sat7:531.66:208:21Waxing Crescent18Sat
19Sun8:381.512:18-0.36:208:21Waxing Crescent19Sun
20Mon9:231.46:401.11:11-0.23:531.06:208:21Waxing Crescent20Mon
21Tue10:051.48:341.02:080.04:380.86:208:22First Quarter21Tue
22Wed10:421.310:451.03:070.35:240.66:208:22First Quarter22Wed
23Thu11:161.24:090.56:120.46:218:22First Quarter23Thu
24Fri12:341.011:47 AM1.25:220.86:590.16:218:22First Quarter24Fri
25Sat2:041.212:141.27:031.07:45-0.16:218:22Waxing Gibbous25Sat
26Sun3:211.312:361.28:521.18:28-0.26:228:22Waxing Gibbous26Sun
27Mon4:241.412:451.210:271.29:08-0.36:228:22Waxing Gibbous27Mon
28Tue5:141.49:46-0.36:228:22Full Moon28Tue
29Wed5:561.410:22-0.36:238:22Full Moon29Wed
30Thu6:341.410:57-0.36:238:22Full Moon30Thu
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 12:05 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 71% 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 Waxing Gibbous (71% 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