Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 5:35 pm (0.0 ft)
Next high tide : in 41m at 9:01 am (1.1 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 - Jun 1985

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:451.79:26-0.46:198:14Full Moon1Sat
2Sun5:451.810:11-0.66:198:14Full Moon2Sun
3Mon6:401.911:00-0.66:198:15Full Moon3Mon
4Tue7:341.811:51-0.66:198:15Full Moon4Tue
5Wed8:311.76:198:16Waning Gibbous5Wed
6Thu9:321.612:47-0.46:198:16Waning Gibbous6Thu
7Fri10:331.51:45-0.26:198:16Waning Gibbous7Fri
8Sat11:211.42:430.06:198:17Third Quarter8Sat
9Sun11:541.33:390.26:188:17Third Quarter9Sun
10Mon12:161.24:320.47:290.86:188:18Third Quarter10Mon
11Tue12:140.912:321.25:260.77:380.56:188:18Third Quarter11Tue
12Wed2:021.012:361.16:320.97:560.36:198:19Waning Crescent12Wed
13Thu3:331.212:121.18:041.18:190.16:198:19Waning Crescent13Thu
14Fri4:411.38:44-0.16:198:19Waning Crescent14Fri
15Sat5:261.49:11-0.26:198:20Waning Crescent15Sat
16Sun6:011.59:41-0.36:198:20New Moon16Sun
17Mon6:341.610:13-0.46:198:20New Moon17Mon
18Tue7:091.610:48-0.46:198:20New Moon18Tue
19Wed7:501.611:26-0.46:198:21New Moon19Wed
20Thu8:361.56:208:21Waxing Crescent20Thu
21Fri9:261.512:07-0.46:208:21Waxing Crescent21Fri
22Sat10:101.512:52-0.36:208:21Waxing Crescent22Sat
23Sun10:411.41:40-0.16:208:22Waxing Crescent23Sun
24Mon11:021.38:210.92:310.16:010.96:208:22First Quarter24Mon
25Tue11:151.211:270.93:240.36:000.66:218:22First Quarter25Tue
26Wed11:231.24:230.66:250.36:218:22First Quarter26Wed
27Thu1:241.111:21 AM1.15:420.97:00-0.16:218:22Waxing Gibbous27Thu
28Fri2:541.311:03 AM1.28:101.27:42-0.46:228:22Waxing Gibbous28Fri
29Sat4:061.58:27-0.66:228:22Waxing Gibbous29Sat
30Sun5:041.79:14-0.76:228:22Waxing Gibbous30Sun
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 1:18 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 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