Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Wednesday, July 22, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 34m at 6:20 pm (-0.1 ft)
Next high tide (tomorrow) : 5:07 am (1.4 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 6:33 am
Moon phase : First Quarter (62% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jun 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:261.52:130.16:208:13Waning Gibbous1Wed
2Thu12:011.43:030.26:198:14Third Quarter2Thu
3Fri12:251.33:520.46:198:14Third Quarter3Fri
4Sat12:431.34:430.57:480.86:198:15Third Quarter4Sat
5Sun12:370.912:541.25:390.77:540.66:198:15Third Quarter5Sun
6Mon2:121.012:581.26:490.88:100.36:198:16Waning Crescent6Mon
7Tue3:231.212:571.28:081.08:320.16:198:16Waning Crescent7Tue
8Wed4:211.412:551.29:251.29:00-0.16:198:17Waning Crescent8Wed
9Thu5:101.612:501.310:441.39:32-0.36:188:17New Moon9Thu
10Fri5:571.710:10-0.56:188:18New Moon10Fri
11Sat6:451.710:54-0.66:188:18New Moon11Sat
12Sun7:351.711:43-0.66:188:18New Moon12Sun
13Mon8:281.76:198:19Waxing Crescent13Mon
14Tue9:241.612:38-0.56:198:19Waxing Crescent14Tue
15Wed10:161.51:38-0.36:198:19Waxing Crescent15Wed
16Thu10:591.48:001.12:41-0.15:281.06:198:20First Quarter16Thu
17Fri11:331.310:431.03:440.26:030.86:198:20First Quarter17Fri
18Sat12:011.24:510.46:450.56:198:20First Quarter18Sat
19Sun12:451.112:241.26:100.77:260.26:198:21Waxing Gibbous19Sun
20Mon2:241.212:401.27:521.08:050.06:198:21Waxing Gibbous20Mon
21Tue3:481.312:401.29:491.18:42-0.26:208:21Waxing Gibbous21Tue
22Wed4:541.49:16-0.36:208:21Waxing Gibbous22Wed
23Thu5:441.59:50-0.46:208:21Full Moon23Thu
24Fri6:251.510:23-0.46:208:22Full Moon24Fri
25Sat7:031.510:57-0.36:218:22Full Moon25Sat
26Sun7:411.511:34-0.36:218:22Full Moon26Sun
27Mon8:221.46:218:22Waning Gibbous27Mon
28Tue9:061.412:12-0.26:228:22Waning Gibbous28Tue
29Wed9:471.312:53-0.16:228:22Waning Gibbous29Wed
30Thu10:221.31:340.06:228:22Waning Gibbous30Thu
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 11:43 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 First 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