Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 6h 07m at 11:13 pm (-0.3 ft)
Next high tide (tomorrow) : 8:10 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:23 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Dec 2008

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:171.411:51-0.26:565:20Waxing Crescent1Mon
2Tue12:151.410:111.412:32-0.16:575:20Waxing Crescent2Tue
3Wed10:301.31:130.06:575:20Waxing Crescent3Wed
4Thu10:431.21:520.26:585:20First Quarter4Thu
5Fri10:501.22:340.46:595:20First Quarter5Fri
6Sat11:000.810:501.16:130.63:250.67:005:20First Quarter6Sat
7Sun1:020.96:120.44:450.87:005:20Waxing Gibbous7Sun
8Mon2:201.26:300.07:041.07:015:21Waxing Gibbous8Mon
9Tue3:191.46:59-0.37:025:21Waxing Gibbous9Tue
10Wed4:091.57:37-0.67:035:21Waxing Gibbous10Wed
11Thu4:561.68:19-0.87:035:21Full Moon11Thu
12Fri5:441.69:06-0.99:541.47:045:22Full Moon12Fri
13Sat12:241.46:331.59:57-1.09:491.47:045:22Full Moon13Sat
14Sun1:391.47:231.410:50-0.910:151.37:055:22Waning Gibbous14Sun
15Mon2:531.48:111.211:45-0.711:181.27:065:23Waning Gibbous15Mon
16Tue4:071.38:541.112:42-0.57:065:23Waning Gibbous16Tue
17Wed5:301.09:281.01:531.01:38-0.27:075:23Third Quarter17Wed
18Thu7:300.89:560.93:280.72:320.17:075:24Third Quarter18Thu
19Fri10:090.710:170.94:350.43:290.47:085:24Third Quarter19Fri
20Sat12:280.85:290.15:000.77:095:25Third Quarter20Sat
21Sun2:531.06:14-0.17:095:25Waning Crescent21Sun
22Mon4:171.16:54-0.37:105:26Waning Crescent22Mon
23Tue4:541.27:30-0.57:105:26Waning Crescent23Tue
24Wed5:201.28:04-0.67:105:27Waning Crescent24Wed
25Thu5:421.28:37-0.67:115:27New Moon25Thu
26Fri6:051.19:11-0.77:115:28New Moon26Fri
27Sat6:321.19:45-0.79:191.17:125:29New Moon27Sat
28Sun7:031.010:19-0.79:361.07:125:29New Moon28Sun
29Mon12:181.07:351.010:53-0.67:125:30Waxing Crescent29Mon
30Tue8:041.011:25-0.57:135:30Waxing Crescent30Tue
31Wed8:150.911:56-0.47:135:31Waxing Crescent31Wed
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 3:41 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 spring phase. Tonight's moon is 100% 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 near their weekly maximum.

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 Full Moon (100% illuminated). This places Galveston Pier 21, TX in a spring tide cycle, so tidal ranges are near their weekly maximum 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