Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 12h 29m at 7:25 pm (-0.6 ft)
Next high tide (tomorrow) : 4:37 am (1.6 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waning Crescent (19% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Nov 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:131.63:001.87:520.58:231.36:325:33Waning Crescent1Tue
2Wed1:291.64:001.98:280.39:121.46:325:32New Moon2Wed
3Thu1:491.64:562.09:080.09:551.56:335:31New Moon3Thu
4Fri2:131.75:512.09:53-0.110:341.66:345:31New Moon4Fri
5Sat2:421.76:482.010:43-0.211:161.76:355:30Waxing Crescent5Sat
6Sun3:181.87:491.911:38-0.16:355:29Waxing Crescent6Sun
7Mon3:581.78:541.812:241.712:380.06:365:29Waxing Crescent7Mon
8Tue4:441.69:561.72:401.61:420.26:375:28First Quarter8Tue
9Wed10:481.62:480.46:385:27First Quarter9Wed
10Thu8:241.311:281.55:381.33:560.66:395:27First Quarter10Thu
11Fri10:531.36:231.15:080.86:395:26First Quarter11Fri
12Sat12:011.512:331.36:590.96:241.06:405:26Waxing Gibbous12Sat
13Sun12:291.41:561.47:300.77:351.16:415:25Waxing Gibbous13Sun
14Mon12:511.43:031.57:570.58:341.26:425:25Waxing Gibbous14Mon
15Tue1:071.43:561.58:220.49:191.36:435:24Waxing Gibbous15Tue
16Wed1:091.44:391.68:460.29:521.46:435:24Full Moon16Wed
17Thu12:551.45:171.69:120.110:131.46:445:23Full Moon17Thu
18Fri12:561.55:541.69:400.110:301.46:455:23Full Moon18Fri
19Sat1:151.56:331.610:110.010:511.56:465:22Full Moon19Sat
20Sun1:351.57:171.610:450.06:475:22Waning Gibbous20Sun
21Mon8:061.511:210.06:475:22Waning Gibbous21Mon
22Tue8:581.511:590.16:485:21Waning Gibbous22Tue
23Wed9:441.512:400.26:495:21Waning Gibbous23Wed
24Thu10:181.41:230.36:505:21Third Quarter24Thu
25Fri10:431.42:100.46:515:21Third Quarter25Fri
26Sat8:421.011:011.35:580.93:030.66:525:21Third Quarter26Sat
27Sun11:321.011:161.36:010.74:090.86:525:20Third Quarter27Sun
28Mon1:051.26:210.45:361.06:535:20Waning Crescent28Mon
29Tue2:161.46:520.17:091.16:545:20Waning Crescent29Tue
30Wed3:161.57:29-0.18:161.26:555:20Waning Crescent30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
What time does the tide turn (slack tide) in Galveston Pier 21, TX today?

Slack tide in Galveston Pier 21, TX is approximately 12:01 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 19% 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 (19% 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