Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 5:13 pm (-0.2 ft)
Next high tide : in 23m at 6:30 am (1.3 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 - Oct 2092

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:531.75:121.810:360.910:531.07:137:03New Moon1Wed
2Thu5:101.76:151.811:120.711:361.27:137:02New Moon2Thu
3Fri5:241.67:211.911:540.57:147:01Waxing Crescent3Fri
4Sat5:381.78:331.912:251.412:440.47:147:00Waxing Crescent4Sat
5Sun5:481.79:531.91:311.61:410.37:156:59Waxing Crescent5Sun
6Mon11:171.92:440.37:156:57First Quarter6Mon
7Tue3:510.37:166:56First Quarter7Tue
8Wed12:311.95:020.37:176:55First Quarter8Wed
9Thu1:291.96:150.47:176:54First Quarter9Thu
10Fri2:141.911:52 AM1.68:551.57:250.57:186:53Waxing Gibbous10Fri
11Sat2:511.81:301.69:041.48:270.77:186:52Waxing Gibbous11Sat
12Sun3:231.72:481.79:251.29:200.87:196:51Waxing Gibbous12Sun
13Mon3:511.73:551.79:491.110:051.07:206:50Full Moon13Mon
14Tue4:151.74:541.710:160.910:431.17:206:49Full Moon14Tue
15Wed4:351.65:491.810:430.811:181.37:216:48Full Moon15Wed
16Thu4:481.66:421.811:130.611:531.47:216:46Full Moon16Thu
17Fri4:501.67:361.811:450.67:226:45Waning Gibbous17Fri
18Sat4:381.68:341.812:331.512:220.57:236:44Waning Gibbous18Sat
19Sun4:201.69:431.81:561.61:030.57:236:43Waning Gibbous19Sun
20Mon11:011.81:490.57:246:42Waning Gibbous20Mon
21Tue2:400.57:256:41Third Quarter21Tue
22Wed12:131.83:340.67:256:40Third Quarter22Wed
23Thu1:031.84:320.67:266:40Third Quarter23Thu
24Fri1:381.85:310.77:276:39Third Quarter24Fri
25Sat2:061.86:320.77:276:38Waning Crescent25Sat
26Sun2:291.712:511.48:561.37:300.87:286:37Waning Crescent26Sun
27Mon2:491.72:191.59:011.18:230.97:296:36Waning Crescent27Mon
28Tue3:061.63:291.69:160.99:111.07:306:35Waning Crescent28Tue
29Wed3:211.64:321.79:390.79:581.17:306:34New Moon29Wed
30Thu3:361.65:301.910:100.410:431.37:316:33New Moon30Thu
31Fri3:511.66:281.910:470.211:311.57:326:33New Moon31Fri
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 11:51 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