Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in Galveston Pier 21, TX.
Next low tide : 11:13 pm (-0.3 ft)
Next high tide : in 4h 55m at 7:38 am (1.4 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 6:23 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Oct 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:521.63:001.69:331.29:200.97:127:04Waxing Gibbous1Thu
2Fri3:591.64:071.69:521.09:531.07:137:03Full Moon2Fri
3Sat4:051.65:071.710:160.810:271.27:137:02Full Moon3Sat
4Sun4:081.66:041.810:420.711:021.47:147:01Full Moon4Sun
5Mon4:091.67:001.911:120.511:401.67:147:00Full Moon5Mon
6Tue4:071.78:011.911:470.37:156:58Waning Gibbous6Tue
7Wed3:531.79:121.912:181.712:300.27:156:57Waning Gibbous7Wed
8Thu10:432.01:210.27:166:56Waning Gibbous8Thu
9Fri2:210.27:176:55Third Quarter9Fri
10Sat2:532.03:280.27:176:54Third Quarter10Sat
11Sun3:102.04:390.37:186:53Third Quarter11Sun
12Mon2:021.95:520.47:186:52Third Quarter12Mon
13Tue2:171.811:02 AM1.78:021.67:050.67:196:51Waning Crescent13Tue
14Wed2:341.71:161.78:101.48:120.87:206:50Waning Crescent14Wed
15Thu2:521.72:501.88:411.19:121.07:206:48Waning Crescent15Thu
16Fri3:101.64:081.99:170.810:071.27:216:47New Moon16Fri
17Sat3:251.65:152.09:540.511:001.47:226:46New Moon17Sat
18Sun3:351.66:162.010:320.311:571.67:226:45New Moon18Sun
19Mon3:311.77:142.011:120.27:236:44New Moon19Mon
20Tue8:142.011:530.27:236:43Waxing Crescent20Tue
21Wed9:231.912:380.27:246:42Waxing Crescent21Wed
22Thu1:270.37:256:41Waxing Crescent22Thu
23Fri1:311.92:220.47:266:40Waxing Crescent23Fri
24Sat2:141.83:200.57:266:39First Quarter24Sat
25Sun2:251.84:180.67:276:39First Quarter25Sun
26Mon2:011.75:160.77:286:38First Quarter26Mon
27Tue2:001.76:140.87:286:37First Quarter27Tue
28Wed2:071.612:521.38:541.37:100.97:296:36Waxing Gibbous28Wed
29Thu2:151.62:271.48:441.18:041.17:306:35Waxing Gibbous29Thu
30Fri2:201.63:381.58:580.88:551.27:306:34Waxing Gibbous30Fri
31Sat2:211.54:361.79:170.69:441.37:316:33Waxing Gibbous31Sat
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 3:25 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 100% 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 Full Moon (100% 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