Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 3h 29m at 7:47 pm (-0.3 ft)
Next high tide (tomorrow) : 6:19 am (1.5 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 - Dec 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:551.33:311.58:04-0.18:581.16:555:20Waxing Gibbous1Sat
2Sun1:211.34:261.58:42-0.29:511.26:565:20Full Moon2Sun
3Mon1:461.35:151.69:21-0.310:401.26:575:20Full Moon3Mon
4Tue2:071.36:031.510:01-0.411:331.26:585:20Full Moon4Tue
5Wed2:241.36:511.510:40-0.46:585:20Waning Gibbous5Wed
6Thu7:421.411:21-0.36:595:20Waning Gibbous6Thu
7Fri8:351.312:03-0.27:005:20Waning Gibbous7Fri
8Sat9:271.212:460.07:015:20Waning Gibbous8Sat
9Sun10:121.21:280.17:015:21Third Quarter9Sun
10Mon10:471.12:110.37:025:21Third Quarter10Mon
11Tue11:131.12:540.47:035:21Third Quarter11Tue
12Wed11:420.711:331.06:310.53:420.67:035:21Third Quarter12Wed
13Thu1:140.86:480.34:490.77:045:22Waning Crescent13Thu
14Fri2:230.97:120.16:210.87:055:22Waning Crescent14Fri
15Sat3:141.07:38-0.17:370.97:055:22Waning Crescent15Sat
16Sun3:541.18:06-0.28:311.07:065:23Waning Crescent16Sun
17Mon12:151.04:311.28:35-0.49:101.07:065:23New Moon17Mon
18Tue12:391.15:081.39:05-0.59:381.07:075:23New Moon18Tue
19Wed1:081.15:471.39:39-0.610:021.17:085:24New Moon19Wed
20Thu1:431.16:281.310:16-0.610:331.17:085:24New Moon20Thu
21Fri2:241.17:111.210:57-0.611:261.07:095:25Waxing Crescent21Fri
22Sat3:151.07:561.211:43-0.57:095:25Waxing Crescent22Sat
23Sun4:220.98:391.11:300.912:33-0.47:105:26Waxing Crescent23Sun
24Mon5:480.89:191.02:510.81:26-0.27:105:26First Quarter24Mon
25Tue7:530.79:551.03:500.52:230.07:115:27First Quarter25Tue
26Wed10:210.610:280.94:440.33:260.37:115:27First Quarter26Wed
27Thu12:120.75:350.04:510.57:115:28First Quarter27Thu
28Fri1:400.96:24-0.26:440.77:125:29Waxing Gibbous28Fri
29Sat2:521.07:10-0.48:140.87:125:29Waxing Gibbous29Sat
30Sun3:481.17:53-0.69:180.87:125:30Waxing Gibbous30Sun
31Mon12:280.94:341.18:34-0.710:090.97:135:31Full Moon31Mon
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 1:03 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 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