Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Saturday, July 25, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 8:29 pm (-0.3 ft)
Next high tide : in 2h 45m at 6:19 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 - Feb 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:590.67:520.71:060.11:12-0.17:085:57Waxing Crescent1Thu
2Fri8:390.68:270.72:21-0.12:070.17:075:57First Quarter2Fri
3Sat10:300.69:000.63:30-0.23:080.47:075:58First Quarter3Sat
4Sun12:200.64:35-0.44:470.57:065:59First Quarter4Sun
5Mon2:050.75:37-0.57:520.67:056:00First Quarter5Mon
6Tue3:220.86:34-0.57:056:01Waxing Gibbous6Tue
7Wed4:000.87:23-0.67:046:02Waxing Gibbous7Wed
8Thu4:230.88:04-0.69:530.77:036:02Waxing Gibbous8Thu
9Fri4:430.88:40-0.69:320.77:036:03Waxing Gibbous9Fri
10Sat12:590.75:040.89:12-0.69:340.67:026:04Full Moon10Sat
11Sun1:530.75:260.89:42-0.59:550.57:016:05Full Moon11Sun
12Mon2:440.75:480.710:10-0.410:300.57:006:06Full Moon12Mon
13Tue3:350.76:100.710:38-0.311:160.47:006:06Full Moon13Tue
14Wed4:280.66:310.711:07-0.26:596:07Waning Gibbous14Wed
15Thu5:250.66:480.712:080.311:36 AM-0.16:586:08Waning Gibbous15Thu
16Fri6:310.57:010.71:000.212:070.16:576:09Waning Gibbous16Fri
17Sat7:550.57:100.71:480.112:410.36:566:09Waning Gibbous17Sat
18Sun9:410.67:180.72:35-0.11:190.46:556:10Third Quarter18Sun
19Mon11:220.77:250.73:23-0.22:030.66:546:11Third Quarter19Mon
20Tue12:440.84:16-0.33:000.76:536:12Third Quarter20Tue
21Wed1:460.95:13-0.54:290.86:526:12Third Quarter21Wed
22Thu2:330.96:12-0.67:020.96:516:13Waning Crescent22Thu
23Fri3:111.07:09-0.77:270.86:506:14Waning Crescent23Fri
24Sat3:461.08:03-0.78:030.76:496:14Waning Crescent24Sat
25Sun1:181.04:181.08:54-0.78:440.66:486:15New Moon25Sun
26Mon2:351.14:490.99:43-0.59:310.46:476:16New Moon26Mon
27Tue3:461.15:200.910:32-0.410:240.36:466:17New Moon27Tue
28Wed4:541.15:500.911:22-0.111:220.16:456:17Waxing Crescent28Wed
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 1:24 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 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