Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 8h 48m at 6:20 pm (-0.1 ft)
Next high tide (tomorrow) : 5:07 am (1.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jan 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:161.28:43-0.87:135:31New Moon1Sun
2Mon5:531.19:20-0.87:135:32New Moon2Mon
3Tue6:301.19:57-0.87:135:33New Moon3Tue
4Wed7:091.010:34-0.79:580.97:145:33New Moon4Wed
5Thu12:141.07:500.911:10-0.710:280.97:145:34Waxing Crescent5Thu
6Fri12:540.98:290.911:47-0.67:145:35Waxing Crescent6Fri
7Sat9:020.812:24-0.47:145:36Waxing Crescent7Sat
8Sun9:260.812:58-0.37:145:36Waxing Crescent8Sun
9Mon9:400.71:30-0.17:145:37First Quarter9Mon
10Tue8:360.39:430.74:540.31:590.17:145:38First Quarter10Tue
11Wed12:050.45:160.02:270.47:145:39First Quarter11Wed
12Thu9:180.75:43-0.27:145:40First Quarter12Thu
13Fri3:100.86:13-0.47:145:40Waxing Gibbous13Fri
14Sat3:430.96:46-0.67:145:41Waxing Gibbous14Sat
15Sun4:161.07:23-0.87:145:42Waxing Gibbous15Sun
16Mon4:511.18:04-1.07:145:43Waxing Gibbous16Mon
17Tue5:281.18:47-1.19:291.07:145:44Full Moon17Tue
18Wed12:061.06:051.19:33-1.29:250.97:135:45Full Moon18Wed
19Thu1:291.06:431.010:21-1.19:590.87:135:45Full Moon19Thu
20Fri2:491.07:180.911:11-1.010:590.77:135:46Waning Gibbous20Fri
21Sat4:090.97:500.812:02-0.87:135:47Waning Gibbous21Sat
22Sun5:350.78:190.712:330.512:54-0.57:125:48Waning Gibbous22Sun
23Mon7:210.68:440.62:040.31:47-0.17:125:49Third Quarter23Mon
24Tue9:320.59:040.63:150.02:430.27:125:50Third Quarter24Tue
25Wed11:420.69:120.64:17-0.34:040.57:115:51Third Quarter25Wed
26Thu1:470.85:16-0.57:115:51Third Quarter26Thu
27Fri3:340.96:11-0.77:115:52Waning Crescent27Fri
28Sat4:251.07:03-0.87:105:53Waning Crescent28Sat
29Sun4:571.07:50-0.97:105:54Waning Crescent29Sun
30Mon5:220.98:33-0.97:095:55Waning Crescent30Mon
31Tue5:440.99:12-0.87:095:56New Moon31Tue
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 11:43 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 62% 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 First Quarter (62% 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