Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 6h 40m at 3:07 pm (0.5 ft)
Next high tide : 9:30 pm (1.0 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 6:40 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jan 2089

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:200.78:340.91:400.51:10-0.27:135:32Waning Gibbous1Sat
2Sun8:030.69:130.82:570.32:020.07:135:33Third Quarter2Sun
3Mon10:040.59:500.84:060.12:550.37:135:34Third Quarter3Mon
4Tue12:010.65:08-0.14:010.57:145:34Third Quarter4Tue
5Wed1:520.76:03-0.36:350.77:145:35Waning Crescent5Wed
6Thu3:290.86:51-0.49:040.77:145:36Waning Crescent6Thu
7Fri4:120.97:32-0.57:145:37Waning Crescent7Fri
8Sat4:360.98:08-0.67:145:37Waning Crescent8Sat
9Sun4:570.98:41-0.67:145:38Waning Crescent9Sun
10Mon5:190.99:12-0.79:420.77:145:39New Moon10Mon
11Tue12:410.85:440.89:42-0.69:490.77:145:40New Moon11Tue
12Wed1:380.86:100.810:12-0.610:240.67:145:41New Moon12Wed
13Thu2:310.76:370.810:42-0.511:210.67:145:41New Moon13Thu
14Fri3:230.67:040.811:11-0.57:145:42Waxing Crescent14Fri
15Sat4:200.67:300.712:420.511:42 AM-0.37:135:43Waxing Crescent15Sat
16Sun5:250.57:520.71:490.412:13-0.27:135:44Waxing Crescent16Sun
17Mon6:510.48:100.72:390.212:450.07:135:45Waxing Crescent17Mon
18Tue9:020.38:240.73:210.11:210.27:135:46First Quarter18Tue
19Wed11:140.48:380.74:02-0.12:030.47:135:46First Quarter19Wed
20Thu12:480.64:45-0.32:580.57:125:47First Quarter20Thu
21Fri1:570.75:33-0.54:250.77:125:48Waxing Gibbous21Fri
22Sat2:480.86:23-0.76:550.87:125:49Waxing Gibbous22Sat
23Sun3:300.97:14-0.97:440.87:115:50Waxing Gibbous23Sun
24Mon4:080.98:04-1.08:170.77:115:51Waxing Gibbous24Mon
25Tue12:500.94:430.98:53-1.08:550.67:105:52Full Moon25Tue
26Wed2:020.95:180.99:41-0.99:400.57:105:52Full Moon26Wed
27Thu3:120.95:520.810:28-0.810:350.47:105:53Full Moon27Thu
28Fri4:210.96:260.811:16-0.611:410.27:095:54Waning Gibbous28Fri
29Sat5:310.87:000.712:04-0.37:095:55Waning Gibbous29Sat
30Sun6:470.67:330.712:540.112:51-0.17:085:56Waning Gibbous30Sun
31Mon8:190.58:050.62:04-0.11:370.27:085:57Third Quarter31Mon
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 6:18 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 75% 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 Waning Gibbous (75% 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