Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 3h 25m at 12:57 am (0.0 ft)
Next high tide (tomorrow) : 9:30 am (1.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:121.410:341.51:441.12:400.36:567:41Waxing Crescent1Mon
2Tue6:571.53:071.43:380.16:577:40First Quarter2Tue
3Wed12:221.74:400.06:577:39First Quarter3Wed
4Thu1:551.85:45-0.16:587:38First Quarter4Thu
5Fri3:101.86:52-0.16:587:37Waxing Gibbous5Fri
6Sat4:031.87:56-0.16:597:35Waxing Gibbous6Sat
7Sun4:371.88:540.06:597:34Waxing Gibbous7Sun
8Mon5:021.71:391.610:051.59:440.17:007:33Waxing Gibbous8Mon
9Tue5:241.63:021.610:081.410:260.37:007:32Full Moon9Tue
10Wed5:451.64:131.610:321.311:030.57:017:31Full Moon10Wed
11Thu6:041.55:181.511:081.111:360.77:017:29Full Moon11Thu
12Fri6:191.56:241.511:490.97:027:28Waning Gibbous12Fri
13Sat6:281.47:341.512:060.912:320.87:027:27Waning Gibbous13Sat
14Sun6:231.48:561.512:371.21:170.77:037:26Waning Gibbous14Sun
15Mon6:011.510:381.61:131.42:030.57:037:25Waning Gibbous15Mon
16Tue5:261.52:341.52:520.57:047:23Waning Gibbous16Tue
17Wed12:471.73:430.47:047:22Third Quarter17Wed
18Thu2:181.74:370.47:057:21Third Quarter18Thu
19Fri3:071.85:350.47:057:20Third Quarter19Fri
20Sat3:421.86:340.37:067:18Third Quarter20Sat
21Sun4:051.87:290.37:067:17Waning Crescent21Sun
22Mon4:211.88:180.37:077:16Waning Crescent22Mon
23Tue4:351.812:541.69:481.69:020.47:077:15Waning Crescent23Tue
24Wed4:491.72:331.79:471.49:440.57:087:13New Moon24Wed
25Thu5:021.73:571.710:071.210:260.77:097:12New Moon25Thu
26Fri5:141.65:131.810:391.011:090.97:097:11New Moon26Fri
27Sat5:241.66:271.811:200.711:571.27:107:10New Moon27Sat
28Sun5:301.67:441.912:070.47:107:09Waxing Crescent28Sun
29Mon5:291.69:082.012:571.51:000.37:117:07Waxing Crescent29Mon
30Tue10:422.01:590.17:117:06Waxing Crescent30Tue
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 5:13 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 88% 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 Waning Gibbous (88% 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