Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 3:46 am (0.4 ft)
Next high tide : in 4h 14m at 9:25 pm (1.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Feb 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:560.86:11-0.57:085:57Waxing Gibbous1Sat
2Sun5:070.86:59-0.67:075:58Waxing Gibbous2Sun
3Mon4:500.87:42-0.67:065:59Waxing Gibbous3Mon
4Tue4:450.88:20-0.68:550.77:065:59Waxing Gibbous4Tue
5Wed12:040.74:560.88:53-0.69:110.67:056:00Full Moon5Wed
6Thu1:170.75:110.79:24-0.69:400.57:046:01Full Moon6Thu
7Fri2:210.75:290.79:53-0.510:170.47:046:02Full Moon7Fri
8Sat3:210.75:470.710:21-0.410:580.37:036:03Full Moon8Sat
9Sun4:210.66:030.710:49-0.211:410.27:026:03Waning Gibbous9Sun
10Mon5:240.66:170.711:19-0.17:026:04Waning Gibbous10Mon
11Tue6:360.66:270.712:270.011:52 AM0.17:016:05Waning Gibbous11Tue
12Wed8:030.66:340.71:16-0.112:260.37:006:06Waning Gibbous12Wed
13Thu9:460.66:400.72:07-0.31:030.56:596:07Third Quarter13Thu
14Fri11:300.76:430.83:03-0.41:390.76:586:07Third Quarter14Fri
15Sat6:460.94:05-0.66:576:08Third Quarter15Sat
16Sun7:340.95:11-0.76:576:09Waning Crescent16Sun
17Mon2:500.96:18-0.75:490.96:566:10Waning Crescent17Mon
18Tue3:210.97:19-0.87:170.86:556:10Waning Crescent18Tue
19Wed12:081.03:500.98:15-0.78:040.76:546:11Waning Crescent19Wed
20Thu1:361.04:170.89:06-0.68:500.56:536:12New Moon20Thu
21Fri2:511.04:440.89:53-0.49:390.36:526:13New Moon21Fri
22Sat4:001.05:110.810:37-0.210:300.16:516:13New Moon22Sat
23Sun5:060.95:360.811:200.011:240.06:506:14Waxing Crescent23Sun
24Mon6:120.95:580.812:020.26:496:15Waxing Crescent24Mon
25Tue7:240.86:140.812:20-0.112:440.46:486:15Waxing Crescent25Tue
26Wed8:480.86:160.81:17-0.21:220.66:476:16Waxing Crescent26Wed
27Thu10:310.86:020.82:15-0.21:450.76:466:17First Quarter27Thu
28Fri5:360.83:13-0.26:456:17First Quarter28Fri
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 12:35 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 transitional phase. Tonight's moon is 38% 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 (38% 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