Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 1h 01m at 2:09 am (0.4 ft)
Next high tide : 9:49 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:25 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Feb 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:410.87:40-0.67:085:57Waning Crescent1Tue
2Wed4:520.88:17-0.77:075:57Waning Crescent2Wed
3Thu5:110.88:52-0.79:350.77:075:58New Moon3Thu
4Fri12:160.75:330.89:26-0.79:400.77:065:59New Moon4Fri
5Sat1:240.75:570.89:58-0.710:060.67:066:00New Moon5Sat
6Sun2:240.76:230.810:30-0.610:480.67:056:01New Moon6Sun
7Mon3:230.76:480.811:02-0.511:430.57:046:01Waxing Crescent7Mon
8Tue4:260.67:100.711:36-0.47:036:02Waxing Crescent8Tue
9Wed5:380.67:290.712:420.312:12-0.27:036:03Waxing Crescent9Wed
10Thu7:070.57:430.61:340.212:520.07:026:04Waxing Crescent10Thu
11Fri9:040.57:520.62:240.01:370.37:016:05First Quarter11Fri
12Sat11:010.67:570.73:15-0.22:290.57:006:05First Quarter12Sat
13Sun12:360.84:10-0.43:410.77:006:06First Quarter13Sun
14Mon1:520.95:11-0.66:596:07Waxing Gibbous14Mon
15Tue2:501.06:12-0.86:586:08Waxing Gibbous15Tue
16Wed3:351.07:12-0.88:300.96:576:09Waxing Gibbous16Wed
17Thu4:131.08:08-0.98:380.86:566:09Waxing Gibbous17Thu
18Fri12:581.04:471.09:00-0.89:040.76:556:10Full Moon18Fri
19Sat2:141.05:200.99:49-0.79:430.66:546:11Full Moon19Sat
20Sun3:241.05:500.810:36-0.610:320.46:536:11Full Moon20Sun
21Mon4:290.96:200.811:21-0.311:290.36:526:12Waning Gibbous21Mon
22Tue5:360.96:470.712:05-0.16:526:13Waning Gibbous22Tue
23Wed6:480.87:110.712:320.212:480.26:516:14Waning Gibbous23Wed
24Thu8:140.77:240.71:330.01:300.46:506:14Waning Gibbous24Thu
25Fri9:570.77:030.72:30-0.12:110.66:496:15Third Quarter25Fri
26Sat11:520.85:500.73:26-0.12:450.76:486:16Third Quarter26Sat
27Sun3:280.84:21-0.26:476:16Third Quarter27Sun
28Mon3:520.95:18-0.36:456:17Third Quarter28Mon
29Tue3:560.96:14-0.36:446:18Waning Crescent29Tue
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 5:59 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 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 Third 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