Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 5h 39m at 8:29 pm (-0.3 ft)
Next high tide (tomorrow) : 6:46 am (1.5 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Jul 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:091.510:59-0.36:238:22New Moon1Wed
2Thu7:471.411:35-0.36:248:22New Moon2Thu
3Fri8:261.46:248:22Waxing Crescent3Fri
4Sat9:061.312:12-0.26:258:22Waxing Crescent4Sat
5Sun9:441.312:51-0.16:258:22Waxing Crescent5Sun
6Mon10:141.21:300.16:268:22Waxing Crescent6Mon
7Tue10:361.28:050.72:080.25:480.76:268:22First Quarter7Tue
8Wed10:491.111:280.82:450.46:020.56:278:22First Quarter8Wed
9Thu10:511.13:230.66:230.36:278:21First Quarter9Thu
10Fri1:210.910:42 AM1.14:110.86:480.16:288:21First Quarter10Fri
11Sat2:411.110:32 AM1.15:271.07:17-0.16:288:21Waxing Gibbous11Sat
12Sun3:411.37:52-0.36:298:21Waxing Gibbous12Sun
13Mon4:281.48:32-0.56:298:20Waxing Gibbous13Mon
14Tue5:111.59:16-0.76:308:20Waxing Gibbous14Tue
15Wed5:531.610:02-0.76:308:20Full Moon15Wed
16Thu6:351.61:181.410:261.410:52-0.76:318:19Full Moon16Thu
17Fri7:161.52:521.410:551.311:44-0.66:318:19Full Moon17Fri
18Sat7:561.44:271.311:541.26:328:19Waning Gibbous18Sat
19Sun8:341.36:031.212:39-0.41:401.16:328:18Waning Gibbous19Sun
20Mon9:081.27:491.11:37-0.13:040.86:338:18Waning Gibbous20Mon
21Tue9:391.29:541.02:360.24:080.56:338:17Third Quarter21Tue
22Wed10:061.111:581.13:380.55:050.36:348:17Third Quarter22Wed
23Thu10:281.14:520.85:580.16:358:16Third Quarter23Thu
24Fri1:471.210:35 AM1.16:521.16:48-0.16:358:16Third Quarter24Fri
25Sat3:241.37:35-0.26:368:15Waning Crescent25Sat
26Sun4:361.48:18-0.36:368:14Waning Crescent26Sun
27Mon5:221.58:58-0.36:378:14Waning Crescent27Mon
28Tue5:551.59:35-0.36:378:13Waning Crescent28Tue
29Wed6:231.410:10-0.36:388:12New Moon29Wed
30Thu6:481.410:43-0.26:398:12New Moon30Thu
31Fri7:141.411:16-0.16:398:11New 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 1:37 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 spring phase. Tonight's moon is 86% 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 maximum.

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 (86% illuminated). This places Galveston Pier 21, TX in a spring tide cycle, so tidal ranges are near their weekly maximum 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