Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 3h 56m at 12:19 am (0.3 ft)
Next high tide (tomorrow) : 7:11 am (1.3 ft)
Sunset today : 8:00 pm
Sunrise tomorrow : 6:47 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:161.65:281.710:250.810:361.26:126:06Full Moon1Wed
2Thu4:181.66:351.810:580.611:201.56:126:04Waning Gibbous2Thu
3Fri4:151.67:501.811:380.46:136:03Waning Gibbous3Fri
4Sat3:521.79:181.912:341.712:260.36:136:02Waning Gibbous4Sat
5Sun10:532.01:210.26:146:01Third Quarter5Sun
6Mon2:230.26:146:00Third Quarter6Mon
7Tue12:162.03:320.26:155:58Third Quarter7Tue
8Wed1:132.04:460.26:155:57Third Quarter8Wed
9Thu1:502.06:000.36:165:56Waning Crescent9Thu
10Fri2:161.911:09 AM1.77:561.77:070.46:175:55Waning Crescent10Fri
11Sat2:391.81:001.88:001.48:060.66:175:54Waning Crescent11Sat
12Sun3:001.72:261.88:271.28:580.86:185:53New Moon12Sun
13Mon3:191.73:401.99:020.99:451.16:185:52New Moon13Mon
14Tue3:351.64:481.99:390.710:331.36:195:51New Moon14Tue
15Wed3:451.65:521.910:180.511:281.56:205:50New Moon15Wed
16Thu3:391.66:581.910:580.46:205:48Waxing Crescent16Thu
17Fri8:101.911:410.36:215:47Waxing Crescent17Fri
18Sat9:391.912:270.36:225:46Waxing Crescent18Sat
19Sun11:391.91:180.46:225:45Waxing Crescent19Sun
20Mon2:150.46:235:44First Quarter20Mon
21Tue12:541.93:150.56:245:43First Quarter21Tue
22Wed1:291.94:190.66:245:42First Quarter22Wed
23Thu1:461.85:210.66:255:41First Quarter23Thu
24Fri1:581.86:180.76:265:40Waxing Gibbous24Fri
25Sat2:091.712:131.48:351.47:070.86:265:39Waxing Gibbous25Sat
26Sun2:201.71:441.58:281.27:500.96:275:39Waxing Gibbous26Sun
27Mon2:281.62:541.68:401.08:311.16:285:38Waxing Gibbous27Mon
28Tue2:341.63:541.78:580.79:121.26:285:37Full Moon28Tue
29Wed2:371.64:511.89:210.59:551.46:295:36Full Moon29Wed
30Thu2:371.65:461.99:500.310:461.66:305:35Full Moon30Thu
31Fri2:321.66:452.010:250.16:315:34Waning Gibbous31Fri
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 3:45 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 5% 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 Waxing Crescent (5% 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