Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 6:20 pm (-0.1 ft)
Next high tide : in 4h 40m at 4:31 am (1.2 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (53% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 1984

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:201.44:041.43:520.16:567:41First Quarter1Sat
2Sun12:301.74:550.06:577:39First Quarter2Sun
3Mon2:111.75:580.06:577:38First Quarter3Mon
4Tue3:301.87:020.06:587:37Waxing Gibbous4Tue
5Wed4:231.88:010.16:587:36Waxing Gibbous5Wed
6Thu4:561.78:520.26:597:35Waxing Gibbous6Thu
7Fri5:151.79:340.27:007:33Waxing Gibbous7Fri
8Sat5:311.62:221.510:381.410:090.47:007:32Full Moon8Sat
9Sun5:461.53:311.510:331.310:390.57:017:31Full Moon9Sun
10Mon6:011.54:331.510:551.211:060.67:017:30Full Moon10Mon
11Tue6:131.55:351.411:301.111:320.87:027:29Full Moon11Tue
12Wed6:211.56:401.412:100.97:027:27Waning Gibbous12Wed
13Thu6:231.57:531.412:520.87:037:26Waning Gibbous13Thu
14Fri6:181.59:201.512:301.21:350.67:037:25Waning Gibbous14Fri
15Sat6:091.511:061.61:071.42:190.57:047:24Waning Gibbous15Sat
16Sun5:321.62:131.53:050.47:047:23Third Quarter16Sun
17Mon12:531.73:540.47:057:21Third Quarter17Mon
18Tue2:071.84:500.37:057:20Third Quarter18Tue
19Wed2:571.95:510.27:067:19Third Quarter19Wed
20Thu3:311.96:530.27:067:18Waning Crescent20Thu
21Fri3:561.97:530.27:077:16Waning Crescent21Fri
22Sat4:171.812:331.79:071.78:480.27:077:15Waning Crescent22Sat
23Sun4:361.82:191.89:111.59:390.47:087:14New Moon23Sun
24Mon4:541.73:481.89:441.210:290.67:087:13New Moon24Mon
25Tue5:121.65:081.910:270.911:190.97:097:12New Moon25Tue
26Wed5:281.66:251.911:160.77:097:10New Moon26Wed
27Thu5:401.67:421.912:131.212:090.47:107:09Waxing Crescent27Thu
28Fri5:451.69:072.01:231.51:070.37:107:08Waxing Crescent28Fri
29Sat5:281.710:442.03:231.72:080.27:117:07Waxing Crescent29Sat
30Sun3:110.27:127:05First Quarter30Sun
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 11:25 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 neap phase. Tonight's moon is 53% 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 minimum.

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 (53% illuminated). This places Galveston Pier 21, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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