Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 7:04 pm (-0.2 ft)
Next high tide : in 3h 59m at 5:07 am (1.4 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:34 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 2072

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:451.63:411.310:421.010:140.16:367:56Full Moon1Sun
2Mon5:431.74:041.311:411.110:550.06:357:56Full Moon2Mon
3Tue6:381.74:211.312:471.26:347:57Full Moon3Tue
4Wed7:321.74:251.32:141.36:337:58Waning Gibbous4Wed
5Thu8:281.712:220.06:337:58Waning Gibbous5Thu
6Fri9:271.61:090.16:327:59Waning Gibbous6Fri
7Sat10:291.51:590.26:317:59Waning Gibbous7Sat
8Sun11:261.52:510.36:308:00Third Quarter8Sun
9Mon12:131.43:450.46:308:01Third Quarter9Mon
10Tue12:491.44:420.58:391.06:298:01Third Quarter10Tue
11Wed1:181.35:420.68:050.96:288:02Third Quarter11Wed
12Thu1:171.11:401.36:460.88:190.76:288:03Waning Crescent12Thu
13Fri2:301.21:571.37:490.98:410.66:278:03Waning Crescent13Fri
14Sat3:311.32:101.38:461.09:050.46:268:04Waning Crescent14Sat
15Sun4:231.42:201.39:371.19:310.26:268:04Waning Crescent15Sun
16Mon5:091.52:321.310:251.19:590.16:258:05New Moon16Mon
17Tue5:521.62:471.311:161.210:300.06:258:06New Moon17Tue
18Wed6:361.63:031.312:221.36:248:06New Moon18Wed
19Thu7:221.711:46-0.16:248:07New Moon19Thu
20Fri8:121.76:238:07Waxing Crescent20Fri
21Sat9:051.712:33-0.16:238:08Waxing Crescent21Sat
22Sun10:011.61:25-0.16:228:09Waxing Crescent22Sun
23Mon10:521.52:230.06:228:09First Quarter23Mon
24Tue11:351.59:511.13:250.26:121.06:228:10First Quarter24Tue
25Wed12:121.44:310.46:450.86:218:10First Quarter25Wed
26Thu12:021.112:451.35:460.67:230.66:218:11Waxing Gibbous26Thu
27Fri1:381.21:141.37:110.88:030.36:218:12Waxing Gibbous27Fri
28Sat2:571.41:411.38:361.08:430.16:208:12Waxing Gibbous28Sat
29Sun4:051.52:051.39:511.19:21-0.16:208:13Waxing Gibbous29Sun
30Mon5:031.62:221.311:001.210:00-0.26:208:13Full Moon30Mon
31Tue5:541.62:221.312:191.36:208:14Full Moon31Tue
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 12:05 pm — 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 71% 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 Waxing Gibbous (71% 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