Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 6h 54m at 10:37 pm (-0.4 ft)
Next high tide (tomorrow) : 7:38 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:22 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:431.712:17-0.26:377:55Waning Gibbous1Sat
2Sun9:471.61:07-0.16:367:56Waning Gibbous2Sun
3Mon10:571.52:010.16:357:56Waning Gibbous3Mon
4Tue11:571.52:560.26:347:57Third Quarter4Tue
5Wed12:341.43:510.46:337:57Third Quarter5Wed
6Thu12:571.34:470.58:561.16:327:58Third Quarter6Thu
7Fri1:141.35:450.77:510.96:327:59Third Quarter7Fri
8Sat1:191.11:251.36:480.88:060.76:317:59Waning Crescent8Sat
9Sun2:421.21:271.27:551.08:280.56:308:00Waning Crescent9Sun
10Mon3:491.31:221.39:001.18:530.36:308:01Waning Crescent10Mon
11Tue4:421.51:151.310:021.29:200.16:298:01Waning Crescent11Tue
12Wed5:271.61:111.311:081.39:49-0.16:288:02New Moon12Wed
13Thu6:091.710:22-0.26:288:02New Moon13Thu
14Fri6:521.710:59-0.26:278:03New Moon14Fri
15Sat7:381.811:42-0.36:268:04New Moon15Sat
16Sun8:301.76:268:04Waxing Crescent16Sun
17Mon9:271.712:31-0.26:258:05Waxing Crescent17Mon
18Tue10:221.61:26-0.26:258:06Waxing Crescent18Tue
19Wed11:051.52:240.06:248:06First Quarter19Wed
20Thu11:371.49:341.23:250.25:541.16:248:07First Quarter20Thu
21Fri12:021.44:300.56:250.86:238:07First Quarter21Fri
22Sat12:041.212:231.35:450.77:040.56:238:08Waxing Gibbous22Sat
23Sun1:491.312:391.37:221.07:460.26:228:09Waxing Gibbous23Sun
24Mon3:151.512:471.39:071.28:27-0.16:228:09Waxing Gibbous24Mon
25Tue4:251.69:08-0.26:218:10Waxing Gibbous25Tue
26Wed5:221.79:49-0.36:218:10Full Moon26Wed
27Thu6:111.810:30-0.46:218:11Full Moon27Thu
28Fri6:561.711:11-0.36:208:11Full Moon28Fri
29Sat7:421.711:54-0.26:208:12Full Moon29Sat
30Sun8:291.66:208:13Waning Gibbous30Sun
31Mon9:181.512:37-0.16:208:13Waning Gibbous31Mon
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 3:07 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 spring phase. Tonight's moon is 100% 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 maximum.

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 Full Moon (100% illuminated). This places Galveston Pier 21, TX in a spring tide cycle, so tidal ranges are near their weekly maximum 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