Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Sunday, July 5, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide (tomorrow) : in 4h 41m at 2:09 am (0.4 ft)
Next high tide (tomorrow) : 9:49 am (1.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:25 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - May 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:081.33:101.39:050.79:190.56:367:55Waning Crescent1Mon
2Tue4:111.43:231.39:550.99:460.36:357:56New Moon2Tue
3Wed5:091.63:351.310:461.010:190.16:357:56New Moon3Wed
4Thu6:051.73:471.311:441.210:58-0.16:347:57New Moon4Thu
5Fri7:011.83:571.41:041.36:337:58New Moon5Fri
6Sat8:001.86:327:58Waxing Crescent6Sat
7Sun9:041.812:35-0.26:317:59Waxing Crescent7Sun
8Mon10:131.71:33-0.26:318:00Waxing Crescent8Mon
9Tue11:191.72:37-0.16:308:00First Quarter9Tue
10Wed12:141.63:460.16:298:01First Quarter10Wed
11Thu12:581.54:580.27:321.16:298:01First Quarter11Thu
12Fri1:351.46:150.48:000.96:288:02Waxing Gibbous12Fri
13Sat1:091.22:061.37:340.68:320.76:278:03Waxing Gibbous13Sat
14Sun2:341.32:321.38:460.89:030.56:278:03Waxing Gibbous14Sun
15Mon3:471.42:541.39:511.09:330.36:268:04Waxing Gibbous15Mon
16Tue4:501.53:071.210:521.110:020.26:258:05Full Moon16Tue
17Wed5:431.62:551.212:031.26:258:05Full Moon17Wed
18Thu6:301.611:010.06:248:06Full Moon18Thu
19Fri7:151.611:340.06:248:06Full Moon19Fri
20Sat8:011.66:238:07Waning Gibbous20Sat
21Sun8:511.612:110.06:238:08Waning Gibbous21Sun
22Mon9:461.512:520.06:238:08Waning Gibbous22Mon
23Tue10:421.51:380.16:228:09Waning Gibbous23Tue
24Wed11:311.52:270.26:228:09Third Quarter24Wed
25Thu12:081.43:180.36:218:10Third Quarter25Thu
26Fri12:361.44:090.46:218:11Third Quarter26Fri
27Sat12:571.35:050.57:520.86:218:11Third Quarter27Sat
28Sun12:481.01:131.36:090.78:000.66:208:12Waning Crescent28Sun
29Mon2:161.11:241.37:220.88:180.46:208:12Waning Crescent29Mon
30Tue3:251.31:341.38:341.08:440.16:208:13Waning Crescent30Tue
31Wed4:241.51:441.39:401.19:17-0.16:208:13Waning Crescent31Wed
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 5:59 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 72% 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 Waning Gibbous (72% 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