Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide (tomorrow) : 1:32 am (0.2 ft)
Next high tide : in 4h 15m at 9:30 am (1.3 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:24 am
Moon phase : Waning Gibbous (80% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Feb 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:150.96:080.810:04-0.99:340.77:085:57New Moon1Sat
2Sun2:250.86:360.810:44-0.810:130.67:075:58New Moon2Sun
3Mon3:250.87:030.711:21-0.611:170.57:075:58Waxing Crescent3Mon
4Tue4:250.77:260.611:55-0.47:065:59Waxing Crescent4Tue
5Wed5:330.57:430.612:390.412:26-0.27:056:00Waxing Crescent5Wed
6Thu7:050.47:490.61:470.212:530.17:056:01Waxing Crescent6Thu
7Fri9:200.47:320.62:400.01:150.37:046:02First Quarter7Fri
8Sat7:030.63:28-0.17:036:02First Quarter8Sat
9Sun6:150.74:15-0.37:036:03First Quarter9Sun
10Mon4:290.85:04-0.47:026:04First Quarter10Mon
11Tue4:270.95:53-0.57:016:05Waxing Gibbous11Tue
12Wed4:321.06:42-0.67:006:06Waxing Gibbous12Wed
13Thu4:431.07:28-0.76:596:06Waxing Gibbous13Thu
14Fri5:001.08:11-0.89:270.96:596:07Waxing Gibbous14Fri
15Sat5:201.08:53-0.89:000.96:586:08Full Moon15Sat
16Sun1:000.95:400.99:33-0.89:220.86:576:09Full Moon16Sun
17Mon2:200.96:010.910:14-0.710:050.66:566:09Full Moon17Mon
18Tue3:390.96:200.810:56-0.511:000.46:556:10Waning Gibbous18Tue
19Wed4:590.96:360.711:41-0.26:546:11Waning Gibbous19Wed
20Thu6:240.86:490.712:020.212:290.16:536:12Waning Gibbous20Thu
21Fri8:020.86:540.71:06-0.11:210.46:526:12Waning Gibbous21Fri
22Sat9:540.96:440.82:09-0.32:260.76:516:13Third Quarter22Sat
23Sun11:471.03:12-0.56:506:14Third Quarter23Sun
24Mon1:371.14:17-0.66:496:15Third Quarter24Mon
25Tue3:131.15:26-0.76:486:15Waning Crescent25Tue
26Wed4:001.16:34-0.76:476:16Waning Crescent26Wed
27Thu4:231.17:36-0.76:466:17Waning Crescent27Thu
28Fri4:421.08:30-0.69:230.96:456:17Waning Crescent28Fri
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 5:31 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 spring phase. Tonight's moon is 80% 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 Waning Gibbous (80% 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