Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 7:04 pm (-0.2 ft)
Next high tide (tomorrow) : in 9h 07m at 5:07 am (1.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:591.61:110.06:377:55Waning Gibbous1Sun
2Mon11:121.62:000.16:367:55Waning Gibbous2Mon
3Tue12:191.52:550.26:357:56Third Quarter3Tue
4Wed1:071.53:530.36:347:57Third Quarter4Wed
5Thu1:411.44:530.46:347:57Third Quarter5Thu
6Fri2:051.45:550.59:121.16:337:58Third Quarter6Fri
7Sat2:231.36:570.68:430.96:327:58Waning Crescent7Sat
8Sun1:481.12:371.37:540.78:540.76:317:59Waning Crescent8Sun
9Mon3:041.22:461.38:470.89:130.56:318:00Waning Crescent9Mon
10Tue4:071.42:511.39:370.99:350.36:308:00Waning Crescent10Tue
11Wed5:031.52:541.310:301.110:020.16:298:01New Moon11Wed
12Thu5:541.62:541.311:321.210:34-0.16:288:02New Moon12Thu
13Fri6:461.711:12-0.26:288:02New Moon13Fri
14Sat7:391.811:56-0.36:278:03Waxing Crescent14Sat
15Sun8:381.86:278:03Waxing Crescent15Sun
16Mon9:441.812:48-0.36:268:04Waxing Crescent16Mon
17Tue10:511.71:48-0.26:258:05Waxing Crescent17Tue
18Wed11:481.62:52-0.16:258:05First Quarter18Wed
19Thu12:311.54:010.16:248:06First Quarter19Thu
20Fri1:051.45:130.37:271.06:248:06First Quarter20Fri
21Sat1:321.46:310.57:550.76:238:07Waxing Gibbous21Sat
22Sun1:431.31:561.37:510.78:280.56:238:08Waxing Gibbous22Sun
23Mon3:081.42:151.39:080.99:020.26:228:08Waxing Gibbous23Mon
24Tue4:211.52:271.210:241.19:360.06:228:09Waxing Gibbous24Tue
25Wed5:221.62:111.311:551.210:09-0.16:228:09Full Moon25Wed
26Thu6:151.710:43-0.26:218:10Full Moon26Thu
27Fri7:031.711:18-0.26:218:11Full Moon27Fri
28Sat7:511.711:56-0.26:218:11Full Moon28Sat
29Sun8:411.66:208:12Waning Gibbous29Sun
30Mon9:371.612:37-0.16:208:12Waning Gibbous30Mon
31Tue10:361.51:230.06:208:13Waning Gibbous31Tue
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 62% 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 First Quarter (62% 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