Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, July 19, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 3:02 am (0.7 ft)
Next high tide : in 5h 33m at 10:10 pm (0.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:32 am
Moon phase : First Quarter (33% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jul 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:201.39:07-0.36:238:22Waxing Gibbous1Mon
2Tue5:421.49:41-0.36:248:22Full Moon2Tue
3Wed6:081.410:15-0.36:248:22Full Moon3Wed
4Thu6:361.410:48-0.36:258:22Full Moon4Thu
5Fri7:061.411:23-0.36:258:22Full Moon5Fri
6Sat7:361.46:258:22Waning Gibbous6Sat
7Sun8:061.35:201.012:01-0.12:371.06:268:22Waning Gibbous7Sun
8Mon8:341.36:570.912:410.03:110.86:268:22Waning Gibbous8Mon
9Tue9:001.28:540.91:260.23:470.66:278:21Waning Gibbous9Tue
10Wed9:221.211:000.92:140.54:280.36:278:21Third Quarter10Wed
11Thu9:421.23:070.75:140.16:288:21Third Quarter11Thu
12Fri12:441.110:00 AM1.24:071.06:03-0.16:288:21Third Quarter12Fri
13Sat2:091.210:20 AM1.25:351.26:56-0.36:298:20Waning Crescent13Sat
14Sun3:181.310:50 AM1.38:061.37:48-0.46:298:20Waning Crescent14Sun
15Mon4:131.411:40 AM1.39:181.38:39-0.56:308:20Waning Crescent15Mon
16Tue4:581.412:461.39:531.39:28-0.56:318:19Waning Crescent16Tue
17Wed5:361.41:571.310:201.210:13-0.46:318:19New Moon17Wed
18Thu6:121.43:061.310:531.210:56-0.36:328:19New Moon18Thu
19Fri6:461.34:131.211:401.111:37-0.16:328:18New Moon19Fri
20Sat7:191.35:191.112:440.96:338:18Waxing Crescent20Sat
21Sun7:511.26:281.012:140.11:510.86:338:17Waxing Crescent21Sun
22Mon8:201.27:480.912:500.32:500.76:348:17Waxing Crescent22Mon
23Tue8:451.19:310.91:220.53:400.56:348:16Waxing Crescent23Tue
24Wed9:001.111:310.91:500.74:260.46:358:16First Quarter24Wed
25Thu8:561.12:100.95:100.26:368:15First Quarter25Thu
26Fri8:351.15:530.16:368:15First Quarter26Fri
27Sat8:261.26:370.06:378:14First Quarter27Sat
28Sun7:581.27:21-0.16:378:13Waxing Gibbous28Sun
29Mon5:481.38:02-0.26:388:13Waxing Gibbous29Mon
30Tue4:581.38:41-0.26:388:12Waxing Gibbous30Tue
31Wed5:121.411:54 AM1.39:481.39:18-0.26:398:11Waxing Gibbous31Wed
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 12:36 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 33% 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 First Quarter (33% 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