Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 5h 39m at 5:07 pm (0.5 ft)
Next high tide : 11:02 pm (0.8 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:25 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Sep 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:481.411:161.52:161.13:190.36:567:41Third Quarter1Wed
2Thu7:591.43:361.34:180.26:577:40Third Quarter2Thu
3Fri12:451.65:210.16:577:39Third Quarter3Fri
4Sat1:571.76:250.06:587:38Waning Crescent4Sat
5Sun2:541.77:290.06:587:37Waning Crescent5Sun
6Mon3:411.712:141.69:191.58:270.16:597:35Waning Crescent6Mon
7Tue4:191.71:421.69:331.49:200.26:597:34Waning Crescent7Tue
8Wed4:521.62:571.69:561.310:060.37:007:33New Moon8Wed
9Thu5:221.64:051.610:271.210:480.57:007:32New Moon9Thu
10Fri5:501.65:071.611:031.111:260.67:017:31New Moon10Fri
11Sat6:151.56:081.511:450.97:017:29New Moon11Sat
12Sun6:371.57:121.512:010.812:300.87:027:28Waxing Crescent12Sun
13Mon6:511.48:221.512:361.01:190.77:027:27Waxing Crescent13Mon
14Tue6:511.49:461.51:131.22:090.67:037:26Waxing Crescent14Tue
15Wed6:301.511:241.51:591.43:000.67:037:25Waxing Crescent15Wed
16Thu5:581.53:491.53:520.57:047:23First Quarter16Thu
17Fri12:581.64:450.57:047:22First Quarter17Fri
18Sat2:041.75:410.57:057:21First Quarter18Sat
19Sun2:471.76:360.57:057:20First Quarter19Sun
20Mon3:171.77:280.57:067:18Waxing Gibbous20Mon
21Tue3:431.78:150.57:067:17Waxing Gibbous21Tue
22Wed4:051.71:151.59:371.48:570.57:077:16Waxing Gibbous22Wed
23Thu4:271.72:371.69:461.39:360.67:077:15Full Moon23Thu
24Fri4:471.73:481.610:051.210:140.77:087:13Full Moon24Fri
25Sat5:061.74:541.710:321.010:530.87:087:12Full Moon25Sat
26Sun5:241.65:591.711:080.811:361.07:097:11Full Moon26Sun
27Mon5:421.67:071.811:500.77:107:10Waning Gibbous27Mon
28Tue5:581.68:211.812:241.312:400.57:107:09Waning Gibbous28Tue
29Wed6:121.69:431.91:261.51:370.47:117:07Waning Gibbous29Wed
30Thu6:221.711:111.93:111.62:390.37:117:06Third Quarter30Thu
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 8:04 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 62% 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 Third Quarter (62% 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