Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 9:10 pm (-0.8 ft)
Next high tide (tomorrow) : in 8h 42m at 5:23 am (1.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Feb 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:460.85:25-0.67:085:57First Quarter1Mon
2Tue5:310.96:15-0.77:075:58Waxing Gibbous2Tue
3Wed4:040.97:05-0.88:080.87:065:59Waxing Gibbous3Wed
4Thu4:180.97:52-0.97:570.87:066:00Waxing Gibbous4Thu
5Fri12:050.94:390.98:37-0.98:270.77:056:00Full Moon5Fri
6Sat1:300.95:010.89:22-0.89:100.57:046:01Full Moon6Sat
7Sun2:500.95:240.810:07-0.710:010.37:046:02Full Moon7Sun
8Mon4:060.95:480.710:52-0.510:590.17:036:03Waning Gibbous8Mon
9Tue5:210.96:100.711:38-0.27:026:04Waning Gibbous9Tue
10Wed6:410.86:320.712:04-0.112:260.17:016:04Waning Gibbous10Wed
11Thu8:120.76:510.71:11-0.31:140.47:016:05Waning Gibbous11Thu
12Fri9:570.77:030.72:18-0.52:020.67:006:06Third Quarter12Fri
13Sat11:530.86:500.83:26-0.62:380.86:596:07Third Quarter13Sat
14Sun3:440.94:34-0.66:586:08Third Quarter14Sun
15Mon4:160.95:43-0.66:576:08Waning Crescent15Mon
16Tue4:340.96:47-0.66:566:09Waning Crescent16Tue
17Wed4:230.87:43-0.69:380.86:566:10Waning Crescent17Wed
18Thu12:100.84:250.88:28-0.59:130.76:556:11Waning Crescent18Thu
19Fri1:210.84:360.89:05-0.49:130.66:546:11New Moon19Fri
20Sat2:200.84:510.79:36-0.39:330.56:536:12New Moon20Sat
21Sun3:140.85:070.710:03-0.210:040.46:526:13New Moon21Sun
22Mon4:060.75:210.710:29-0.110:410.26:516:13New Moon22Mon
23Tue5:000.75:320.710:550.111:230.16:506:14Waxing Crescent23Tue
24Wed5:570.75:380.711:220.36:496:15Waxing Crescent24Wed
25Thu7:020.75:430.712:080.011:49 AM0.46:486:16Waxing Crescent25Thu
26Fri8:230.75:470.812:55-0.112:160.66:476:16Waxing Crescent26Fri
27Sat10:040.75:510.81:43-0.212:370.76:466:17First Quarter27Sat
28Sun5:450.92:34-0.26:456:18First Quarter28Sun
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 1:16 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 11% 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 Crescent (11% 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