Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 9h 07m at 7:04 pm (-0.2 ft)
Next high tide (tomorrow) : 5:44 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jan 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:360.610:280.84:440.13:270.37:135:32Third Quarter1Sun
2Mon12:240.75:36-0.14:540.57:135:33Third Quarter2Mon
3Tue1:520.86:26-0.47:040.77:135:33Waning Crescent3Tue
4Wed3:020.97:13-0.68:380.87:145:34Waning Crescent4Wed
5Thu3:561.07:57-0.79:420.87:145:35Waning Crescent5Thu
6Fri12:170.84:401.08:38-0.810:210.87:145:36New Moon6Fri
7Sat12:460.85:191.09:17-0.810:390.87:145:37New Moon7Sat
8Sun1:190.85:551.09:55-0.810:430.87:145:37New Moon8Sun
9Mon1:540.86:320.910:31-0.710:560.77:145:38New Moon9Mon
10Tue2:320.87:080.811:06-0.611:510.77:145:39Waxing Crescent10Tue
11Wed3:140.77:440.811:41-0.57:145:40Waxing Crescent11Wed
12Thu4:020.68:180.71:270.612:16-0.37:145:41Waxing Crescent12Thu
13Fri5:030.58:480.72:370.512:49-0.27:145:41Waxing Crescent13Fri
14Sat6:320.49:110.73:310.31:220.07:145:42First Quarter14Sat
15Sun9:450.39:240.64:180.11:530.27:135:43First Quarter15Sun
16Mon12:030.45:000.02:240.37:135:44First Quarter16Mon
17Tue9:330.65:39-0.27:135:45First Quarter17Tue
18Wed2:510.66:17-0.45:590.67:135:46Waxing Gibbous18Wed
19Thu3:250.86:53-0.58:000.77:135:46Waxing Gibbous19Thu
20Fri3:550.97:30-0.78:450.77:125:47Waxing Gibbous20Fri
21Sat4:260.98:07-0.89:030.87:125:48Waxing Gibbous21Sat
22Sun12:050.84:580.98:45-0.99:140.87:125:49Full Moon22Sun
23Mon1:060.85:310.99:25-1.09:360.77:115:50Full Moon23Mon
24Tue2:100.96:040.910:07-0.910:140.67:115:51Full Moon24Tue
25Wed3:160.86:380.810:51-0.811:080.57:115:52Waning Gibbous25Wed
26Thu4:260.87:110.811:38-0.67:105:52Waning Gibbous26Thu
27Fri5:430.77:440.712:200.312:27-0.47:105:53Waning Gibbous27Fri
28Sat7:130.68:150.71:370.11:19-0.17:095:54Waning Gibbous28Sat
29Sun9:020.58:460.72:46-0.12:130.27:095:55Third Quarter29Sun
30Mon10:570.69:150.73:52-0.33:150.47:085:56Third Quarter30Mon
31Tue12:400.74:56-0.55:270.67:085:57Third 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 12:24 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 transitional phase. Tonight's moon is 71% 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 (71% 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