Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, August 10, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 05m at 9:08 pm (-0.5 ft)
Next high tide (tomorrow) : 5:45 am (1.5 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 6:44 am
Moon phase : Waning Crescent (6% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:141.76:377:55Waning Gibbous1Fri
2Sat9:131.712:18-0.16:367:55Waning Gibbous2Sat
3Sun10:221.71:07-0.16:357:56Waning Gibbous3Sun
4Mon11:291.62:03-0.16:347:57Waning Gibbous4Mon
5Tue12:131.63:030.06:337:57Third Quarter5Tue
6Wed12:391.54:060.26:337:58Third Quarter6Wed
7Thu1:001.45:150.47:001.06:327:59Third Quarter7Thu
8Fri12:061.21:161.36:320.67:260.76:317:59Waning Crescent8Fri
9Sat1:571.41:301.37:560.88:040.46:308:00Waning Crescent9Sat
10Sun3:231.61:401.39:181.18:440.06:308:00Waning Crescent10Sun
11Mon4:341.71:431.310:381.39:26-0.26:298:01New Moon11Mon
12Tue5:351.810:10-0.36:288:02New Moon12Tue
13Wed6:301.910:55-0.46:288:02New Moon13Wed
14Thu7:231.911:42-0.36:278:03New Moon14Thu
15Fri8:171.86:268:04Waxing Crescent15Fri
16Sat9:181.712:32-0.26:268:04Waxing Crescent16Sat
17Sun10:241.61:26-0.16:258:05Waxing Crescent17Sun
18Mon11:221.52:200.16:258:05Waxing Crescent18Mon
19Tue12:001.43:140.36:248:06First Quarter19Tue
20Wed12:241.34:040.58:051.06:248:07First Quarter20Wed
21Thu12:401.34:540.77:270.86:238:07First Quarter21Thu
22Fri12:571.012:481.25:500.87:430.66:238:08First Quarter22Fri
23Sat2:321.212:421.27:041.08:060.46:228:08Waxing Gibbous23Sat
24Sun3:481.312:081.28:361.28:320.26:228:09Waxing Gibbous24Sun
25Mon4:431.49:000.06:218:10Waxing Gibbous25Mon
26Tue5:251.69:29-0.16:218:10Waxing Gibbous26Tue
27Wed6:021.710:01-0.36:218:11Full Moon27Wed
28Thu6:391.710:36-0.36:208:11Full Moon28Thu
29Fri7:211.711:16-0.36:208:12Full Moon29Fri
30Sat8:071.76:208:12Waning Gibbous30Sat
31Sun8:581.612:00-0.36:208:13Waning Gibbous31Sun
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 1:26 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 6% 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 (6% 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