Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Friday, August 7, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 6:10 pm (-0.4 ft)
Next high tide : in 5h 28m at 4:50 am (1.5 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (43% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 2094

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:451.63:391.312:291.26:367:55Full Moon1Sat
2Sun7:371.76:357:56Waning Gibbous2Sun
3Mon8:351.712:08-0.16:347:57Waning Gibbous3Mon
4Tue9:401.712:55-0.16:347:57Waning Gibbous4Tue
5Wed10:501.71:50-0.16:337:58Waning Gibbous5Wed
6Thu11:521.72:520.06:327:59Third Quarter6Thu
7Fri12:411.63:590.16:317:59Third Quarter7Fri
8Sat1:191.55:120.27:471.26:318:00Third Quarter8Sat
9Sun1:491.46:290.47:560.96:308:00Waning Crescent9Sun
10Mon1:181.32:161.37:460.68:250.76:298:01Waning Crescent10Mon
11Tue2:471.42:401.38:570.89:000.46:298:02Waning Crescent11Tue
12Wed4:021.52:591.310:021.09:360.26:288:02Waning Crescent12Wed
13Thu5:071.73:131.311:081.110:130.06:278:03New Moon13Thu
14Fri6:061.73:131.312:261.36:278:04New Moon14Fri
15Sat7:001.811:30-0.16:268:04New Moon15Sat
16Sun7:531.76:258:05Waxing Crescent16Sun
17Mon8:501.712:11-0.16:258:05Waxing Crescent17Mon
18Tue9:511.612:560.06:248:06Waxing Crescent18Tue
19Wed10:551.61:450.16:248:07Waxing Crescent19Wed
20Thu11:501.52:360.26:238:07First Quarter20Thu
21Fri12:301.43:300.36:238:08First Quarter21Fri
22Sat12:591.44:240.46:238:09First Quarter22Sat
23Sun1:211.35:200.68:070.96:228:09First Quarter23Sun
24Mon12:521.01:361.36:200.78:170.76:228:10Waxing Gibbous24Mon
25Tue2:201.11:441.27:250.88:360.56:218:10Waxing Gibbous25Tue
26Wed3:281.21:451.28:301.08:590.36:218:11Waxing Gibbous26Wed
27Thu4:251.41:411.29:311.19:240.16:218:11Waxing Gibbous27Thu
28Fri5:141.51:381.310:331.29:52-0.16:208:12Full Moon28Fri
29Sat6:001.610:25-0.36:208:12Full Moon29Sat
30Sun6:461.711:04-0.46:208:13Full Moon30Sun
31Mon7:351.711:48-0.46:208:14Full Moon31Mon
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 11:30 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 neap phase. Tonight's moon is 43% 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 minimum.

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 Third Quarter (43% illuminated). This places Galveston Pier 21, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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