Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 3:46 am (0.4 ft)
Next high tide : in 24m at 9:25 pm (1.0 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 - May 2031

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:281.36:010.77:520.86:377:55First Quarter1Thu
2Fri1:271.11:431.37:070.88:140.76:367:56Waxing Gibbous2Fri
3Sat2:431.31:531.38:130.98:390.46:357:56Waxing Gibbous3Sat
4Sun3:441.42:021.39:121.09:060.26:347:57Waxing Gibbous4Sun
5Mon4:391.62:121.310:061.29:380.06:337:57Full Moon5Mon
6Tue5:291.72:261.410:571.310:15-0.16:337:58Full Moon6Tue
7Wed6:181.82:441.411:491.410:57-0.26:327:59Full Moon7Wed
8Thu7:081.83:071.512:531.56:317:59Full Moon8Thu
9Fri8:021.86:308:00Waning Gibbous9Fri
10Sat8:581.712:39-0.26:308:01Waning Gibbous10Sat
11Sun9:561.61:38-0.16:298:01Waning Gibbous11Sun
12Mon10:501.57:421.32:420.05:051.26:288:02Third Quarter12Mon
13Tue11:351.510:141.23:480.25:551.16:288:02Third Quarter13Tue
14Wed12:121.44:580.56:440.86:278:03Third Quarter14Wed
15Thu12:181.212:441.36:170.77:280.66:268:04Waning Crescent15Thu
16Fri1:531.31:121.37:430.98:090.46:268:04Waning Crescent16Fri
17Sat3:141.41:351.39:061.18:460.26:258:05Waning Crescent17Sat
18Sun4:211.51:501.310:221.29:200.16:258:06Waning Crescent18Sun
19Mon5:151.69:520.06:248:06New Moon19Mon
20Tue6:001.610:24-0.16:248:07New Moon20Tue
21Wed6:411.610:56-0.16:238:07New Moon21Wed
22Thu7:221.611:310.06:238:08New Moon22Thu
23Fri8:031.66:228:09Waxing Crescent23Fri
24Sat8:481.512:080.06:228:09Waxing Crescent24Sat
25Sun9:351.512:490.16:228:10Waxing Crescent25Sun
26Mon10:191.41:310.26:218:10Waxing Crescent26Mon
27Tue10:551.42:140.36:218:11First Quarter27Tue
28Wed11:221.39:150.92:570.56:290.96:218:11First Quarter28Wed
29Thu11:411.33:410.66:450.76:208:12First Quarter29Thu
30Fri12:131.011:52 AM1.34:320.87:070.56:208:13First Quarter30Fri
31Sat1:461.111:57 AM1.35:381.07:320.36:208:13Waxing Gibbous31Sat
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 12:35 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