Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 24, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 7:47 pm (-0.3 ft)
Next high tide : in 5h 00m at 5:44 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jan 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:520.88:330.91:340.812:27-0.57:135:32Waxing Crescent1Mon
2Tue9:150.81:11-0.37:135:33Waxing Crescent2Tue
3Wed9:500.81:52-0.17:135:33First Quarter3Wed
4Thu9:120.410:180.75:050.32:300.17:145:34First Quarter4Thu
5Fri11:370.410:360.75:380.13:050.37:145:35First Quarter5Fri
6Sat1:310.56:090.03:460.57:145:36First Quarter6Sat
7Sun3:050.76:39-0.26:220.67:145:36Waxing Gibbous7Sun
8Mon3:470.87:10-0.48:080.77:145:37Waxing Gibbous8Mon
9Tue4:150.97:42-0.57:145:38Waxing Gibbous9Tue
10Wed4:420.98:13-0.77:145:39Waxing Gibbous10Wed
11Thu5:101.08:46-0.89:580.87:145:40Full Moon11Thu
12Fri12:140.85:401.09:18-0.810:140.87:145:40Full Moon12Fri
13Sat1:020.86:121.09:52-0.810:290.87:145:41Full Moon13Sat
14Sun1:520.86:470.910:27-0.811:020.87:145:42Full Moon14Sun
15Mon2:470.87:210.911:05-0.77:145:43Waning Gibbous15Mon
16Tue3:520.77:550.812:140.711:46 AM-0.67:135:44Waning Gibbous16Tue
17Wed5:090.68:250.71:330.512:30-0.47:135:45Waning Gibbous17Wed
18Thu6:440.58:510.72:300.31:17-0.27:135:45Third Quarter18Thu
19Fri8:530.59:140.73:220.12:070.17:135:46Third Quarter19Fri
20Sat11:010.59:330.74:14-0.13:030.37:125:47Third Quarter20Sat
21Sun12:420.75:07-0.44:270.67:125:48Third Quarter21Sun
22Mon2:050.86:02-0.67:330.77:125:49Waning Crescent22Mon
23Tue3:080.96:55-0.87:115:50Waning Crescent23Tue
24Wed3:571.07:45-0.99:300.87:115:50Waning Crescent24Wed
25Thu4:391.08:34-1.09:410.87:115:51New Moon25Thu
26Fri12:570.85:160.99:20-1.09:490.77:105:52New Moon26Fri
27Sat2:000.85:520.910:03-0.910:100.77:105:53New Moon27Sat
28Sun2:580.86:260.810:44-0.810:490.67:095:54New Moon28Sun
29Mon3:520.77:000.711:24-0.611:500.57:095:55Waxing Crescent29Mon
30Tue4:460.67:320.712:01-0.47:085:56Waxing Crescent30Tue
31Wed5:470.58:000.61:040.412:36-0.27:085:56Waxing Crescent31Wed
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 12:45 pm — 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 79% 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 Waxing Gibbous (79% 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