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 : 3:57 pm (0.4 ft)
Next high tide : in 3h 36m at 9:10 am (1.1 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 - Jun 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:391.49:030.06:198:14Waxing Gibbous1Sat
2Sun5:181.49:33-0.16:198:15Waxing Gibbous2Sun
3Mon5:511.510:04-0.16:198:15Full Moon3Mon
4Tue6:241.510:36-0.26:198:16Full Moon4Tue
5Wed6:581.511:09-0.26:198:16Full Moon5Wed
6Thu7:351.511:44-0.16:198:16Full Moon6Thu
7Fri8:141.56:198:17Waning Gibbous7Fri
8Sat8:541.512:23-0.16:198:17Waning Gibbous8Sat
9Sun9:321.41:040.06:198:18Waning Gibbous9Sun
10Mon10:051.47:321.01:500.25:180.96:198:18Third Quarter10Mon
11Tue10:331.310:150.92:400.35:290.76:198:19Third Quarter11Tue
12Wed10:561.33:350.65:550.56:198:19Third Quarter12Wed
13Thu12:211.011:15 AM1.24:380.86:320.26:198:19Third Quarter13Thu
14Fri1:511.211:33 AM1.36:031.07:14-0.16:198:20Waning Crescent14Fri
15Sat3:051.411:54 AM1.37:541.28:00-0.36:198:20Waning Crescent15Sat
16Sun4:061.512:201.39:201.38:46-0.46:198:20Waning Crescent16Sun
17Mon4:591.612:581.410:171.39:33-0.56:198:21New Moon17Mon
18Tue5:471.61:481.410:591.310:21-0.56:198:21New Moon18Tue
19Wed6:311.62:471.411:401.311:08-0.56:208:21New Moon19Wed
20Thu7:151.53:501.312:361.36:208:21New Moon20Thu
21Fri7:571.44:541.21:511.16:208:21Waxing Crescent21Fri
22Sat8:391.46:031.112:42-0.13:001.06:208:22Waxing Crescent22Sat
23Sun9:191.37:280.91:280.13:590.96:218:22Waxing Crescent23Sun
24Mon9:561.29:270.82:110.34:490.76:218:22First Quarter24Mon
25Tue10:261.211:340.82:510.55:320.56:218:22First Quarter25Tue
26Wed10:481.13:240.76:110.36:228:22First Quarter26Wed
27Thu1:260.910:52 AM1.13:490.96:480.26:228:22First Quarter27Thu
28Fri10:121.17:230.06:228:22Waxing Gibbous28Fri
29Sat9:361.27:58-0.16:238:22Waxing Gibbous29Sat
30Sun5:021.38:33-0.26:238:22Waxing 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 12:33 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 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