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 2h 59m 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 - Jan 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:041.38:36-1.07:135:31New Moon1Wed
2Thu5:481.29:22-1.17:135:32New Moon2Thu
3Fri6:331.110:08-1.010:211.07:135:33New Moon3Fri
4Sat1:051.07:171.010:54-0.910:270.97:145:34Waxing Crescent4Sat
5Sun2:071.08:020.911:40-0.711:300.97:145:34Waxing Crescent5Sun
6Mon2:510.98:430.812:24-0.57:145:35Waxing Crescent6Mon
7Tue9:170.81:04-0.37:145:36Waxing Crescent7Tue
8Wed9:410.71:40-0.17:145:37First Quarter8Wed
9Thu8:360.49:550.74:430.32:100.17:145:37First Quarter9Thu
10Fri11:430.49:510.65:120.12:290.47:145:38First Quarter10Fri
11Sat9:030.75:42-0.17:145:39First Quarter11Sat
12Sun4:490.76:14-0.37:145:40Waxing Gibbous12Sun
13Mon4:260.96:48-0.57:145:41Waxing Gibbous13Mon
14Tue4:380.97:22-0.77:145:42Waxing Gibbous14Tue
15Wed4:581.07:57-0.87:145:42Waxing Gibbous15Wed
16Thu5:241.08:33-0.97:145:43Full Moon16Thu
17Fri5:541.09:10-1.07:145:44Full Moon17Fri
18Sat6:271.09:47-1.09:470.97:135:45Full Moon18Sat
19Sun1:050.97:000.910:26-1.010:140.87:135:46Full Moon19Sun
20Mon2:190.97:300.911:07-0.911:180.77:135:47Waning Gibbous20Mon
21Tue3:400.87:570.811:50-0.77:135:47Waning Gibbous21Tue
22Wed5:100.78:180.712:570.512:34-0.47:125:48Waning Gibbous22Wed
23Thu6:580.58:340.62:080.31:21-0.17:125:49Third Quarter23Thu
24Fri9:160.58:430.63:050.02:100.27:125:50Third Quarter24Fri
25Sat11:280.68:360.63:59-0.33:070.57:115:51Third Quarter25Sat
26Sun1:190.84:55-0.67:115:52Third Quarter26Sun
27Mon2:490.95:51-0.87:105:53Waning Crescent27Mon
28Tue3:491.06:47-0.97:105:53Waning Crescent28Tue
29Wed4:311.07:41-1.07:095:54Waning Crescent29Wed
30Thu5:061.08:32-1.07:095:55New Moon30Thu
31Fri5:370.99:20-1.09:350.87:085:56New Moon31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8771450)

Common Questions About Galveston Pier 21, TX Tides

Show All
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