Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, August 7, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 17m at 6:10 pm (-0.4 ft)
Next high tide (tomorrow) : 4:18 am (1.6 ft)
Sunset today : 8:06 pm
Sunrise tomorrow : 6:43 am
Moon phase : Third Quarter (32% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jan 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:470.81:45-0.27:135:32First Quarter1Sun
2Mon8:330.510:020.84:240.42:380.17:135:32First Quarter2Mon
3Tue11:200.610:100.74:540.13:420.47:135:33First Quarter3Tue
4Wed1:100.85:34-0.35:440.77:135:34Waxing Gibbous4Wed
5Thu2:341.06:19-0.67:145:35Waxing Gibbous5Thu
6Fri3:381.17:05-0.87:145:35Waxing Gibbous6Fri
7Sat4:281.27:53-1.07:145:36Waxing Gibbous7Sat
8Sun5:131.28:40-1.17:145:37Full Moon8Sun
9Mon5:551.19:27-1.110:351.07:145:38Full Moon9Mon
10Tue12:531.06:371.010:13-1.010:170.97:145:38Full Moon10Tue
11Wed2:021.07:180.910:59-0.910:460.87:145:39Waning Gibbous11Wed
12Thu2:590.97:580.811:42-0.77:145:40Waning Gibbous12Thu
13Fri3:530.88:340.712:320.712:23-0.57:145:41Waning Gibbous13Fri
14Sat4:550.69:030.72:190.612:59-0.37:145:42Waning Gibbous14Sat
15Sun6:280.49:240.63:230.41:300.07:145:43Third Quarter15Sun
16Mon9:330.39:300.64:110.21:520.27:135:43Third Quarter16Mon
17Tue8:550.64:520.07:135:44Third Quarter17Tue
18Wed7:390.65:30-0.27:135:45Third Quarter18Wed
19Thu5:100.86:07-0.47:135:46Waning Crescent19Thu
20Fri4:480.96:45-0.67:125:47Waning Crescent20Fri
21Sat4:460.97:23-0.77:125:48Waning Crescent21Sat
22Sun5:011.08:01-0.87:125:48Waning Crescent22Sun
23Mon5:241.08:38-0.97:125:49New Moon23Mon
24Tue5:521.09:16-1.09:210.97:115:50New Moon24Tue
25Wed12:160.96:200.99:54-1.09:310.87:115:51New Moon25Wed
26Thu1:330.96:490.910:33-0.910:130.77:105:52New Moon26Thu
27Fri2:500.87:150.811:14-0.811:180.67:105:53Waxing Crescent27Fri
28Sat4:130.77:380.711:56-0.67:095:54Waxing Crescent28Sat
29Sun5:450.67:570.712:420.412:41-0.37:095:54Waxing Crescent29Sun
30Mon7:380.58:100.61:530.11:290.07:085:55First Quarter30Mon
31Tue9:540.68:140.62:54-0.12:220.37:085:56First Quarter31Tue
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 11:14 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 32% 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 Third Quarter (32% 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