Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 7h 44m at 9:10 pm (-0.8 ft)
Next high tide (tomorrow) : 6:05 am (1.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waning Crescent (4% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Feb 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu4:080.66:560.711:24-0.37:075:57Waxing Crescent1Thu
2Fri5:260.57:010.612:450.311:49 AM-0.17:075:58Waxing Crescent2Fri
3Sat7:020.46:580.61:340.112:140.17:065:59Waxing Crescent3Sat
4Sun9:130.46:470.62:14-0.112:370.47:065:59First Quarter4Sun
5Mon6:240.72:53-0.37:056:00First Quarter5Mon
6Tue5:020.83:37-0.57:046:01First Quarter6Tue
7Wed4:490.94:29-0.67:046:02First Quarter7Wed
8Thu5:111.05:28-0.87:036:03Waxing Gibbous8Thu
9Fri5:151.16:30-0.97:026:04Waxing Gibbous9Fri
10Sat4:431.07:29-1.07:221.07:016:04Waxing Gibbous10Sat
11Sun4:561.08:24-1.17:490.97:006:05Full Moon11Sun
12Mon12:441.15:140.99:16-1.08:390.77:006:06Full Moon12Mon
13Tue2:171.15:330.810:05-0.89:370.56:596:07Full Moon13Tue
14Wed3:421.05:520.710:53-0.510:410.26:586:07Full Moon14Wed
15Thu5:030.96:100.711:41-0.211:480.06:576:08Waning Gibbous15Thu
16Fri6:260.96:250.712:300.16:566:09Waning Gibbous16Fri
17Sat8:000.86:290.712:54-0.21:240.46:556:10Waning Gibbous17Sat
18Sun9:520.86:040.81:58-0.42:340.76:546:10Third Quarter18Sun
19Mon12:270.92:59-0.56:546:11Third Quarter19Mon
20Tue3:151.04:02-0.66:536:12Third Quarter20Tue
21Wed4:111.05:07-0.66:526:13Third Quarter21Wed
22Thu4:591.06:12-0.56:516:13Waning Crescent22Thu
23Fri5:371.07:11-0.56:506:14Waning Crescent23Fri
24Sat5:430.98:00-0.56:496:15Waning Crescent24Sat
25Sun5:060.98:40-0.58:560.86:486:15Waning Crescent25Sun
26Mon12:360.95:020.89:13-0.49:080.76:476:16New Moon26Mon
27Tue2:010.85:080.89:43-0.39:420.66:466:17New Moon27Tue
28Wed3:100.85:160.810:10-0.110:200.46:456:18New Moon28Wed
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 1:37 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 spring phase. Tonight's moon is 4% 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 (4% 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