Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 5h 31m at 3:46 am (0.4 ft)
Next high tide (tomorrow) : 10:56 am (1.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (38% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:541.43:370.16:198:14Third Quarter1Tue
2Wed12:271.34:410.37:340.96:198:14Third Quarter2Wed
3Thu12:531.35:460.67:520.76:198:15Third Quarter3Thu
4Fri1:281.11:121.26:580.88:140.56:198:15Waning Crescent4Fri
5Sat2:581.21:201.28:161.08:360.36:198:16Waning Crescent5Sat
6Sun4:131.31:031.29:391.18:590.16:198:16Waning Crescent6Sun
7Mon5:101.49:23-0.16:198:17Waning Crescent7Mon
8Tue5:521.59:49-0.26:198:17New Moon8Tue
9Wed6:291.510:19-0.26:198:18New Moon9Wed
10Thu7:051.610:51-0.36:198:18New Moon10Thu
11Fri7:441.611:26-0.36:198:18New Moon11Fri
12Sat8:281.56:198:19Waxing Crescent12Sat
13Sun9:191.512:04-0.26:198:19Waxing Crescent13Sun
14Mon10:111.512:46-0.26:198:19Waxing Crescent14Mon
15Tue10:521.51:31-0.16:198:20Waxing Crescent15Tue
16Wed11:211.42:180.06:198:20First Quarter16Wed
17Thu11:401.39:370.93:080.26:490.86:198:20First Quarter17Thu
18Fri11:531.24:020.46:420.66:198:21First Quarter18Fri
19Sat12:231.011:59 AM1.25:060.77:010.36:198:21First Quarter19Sat
20Sun2:031.211:58 AM1.26:350.97:33-0.16:208:21Waxing Gibbous20Sun
21Mon3:211.411:52 AM1.28:341.28:12-0.46:208:21Waxing Gibbous21Mon
22Tue4:261.68:56-0.66:208:21Waxing Gibbous22Tue
23Wed5:221.79:43-0.76:208:22Full Moon23Wed
24Thu6:131.710:32-0.86:218:22Full Moon24Thu
25Fri7:031.711:24-0.76:218:22Full Moon25Fri
26Sat7:541.66:218:22Waning Gibbous26Sat
27Sun8:441.512:18-0.56:228:22Waning Gibbous27Sun
28Mon9:331.41:14-0.36:228:22Waning Gibbous28Mon
29Tue10:161.32:11-0.16:228:22Waning Gibbous29Tue
30Wed10:501.29:480.93:040.25:440.86:238:22Third Quarter30Wed
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 7:21 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 38% 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 (38% 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