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 1h 20m 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 - Jul 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:081.27:15-0.26:238:22Waxing Gibbous1Wed
2Thu4:541.47:57-0.36:238:22Waxing Gibbous2Thu
3Fri5:431.58:37-0.46:248:22Waxing Gibbous3Fri
4Sat6:161.59:15-0.46:248:22Waxing Gibbous4Sat
5Sun6:381.59:51-0.46:258:22Full Moon5Sun
6Mon6:571.410:26-0.46:258:22Full Moon6Mon
7Tue7:171.411:00-0.36:268:22Full Moon7Tue
8Wed7:401.311:32-0.26:268:22Full Moon8Wed
9Thu8:041.36:268:21Waning Gibbous9Thu
10Fri8:271.312:04-0.16:278:21Waning Gibbous10Fri
11Sat8:471.212:340.16:278:21Waning Gibbous11Sat
12Sun9:011.27:500.81:040.34:140.76:288:21Waning Gibbous12Sun
13Mon9:061.110:400.81:340.54:350.56:288:20Third Quarter13Mon
14Tue9:031.12:050.74:590.26:298:20Third Quarter14Tue
15Wed8:531.25:300.06:308:20Third Quarter15Wed
16Thu8:271.26:08-0.26:308:19Third Quarter16Thu
17Fri6:001.46:54-0.46:318:19Waning Crescent17Fri
18Sat4:251.57:44-0.66:318:19Waning Crescent18Sat
19Sun5:021.68:36-0.76:328:18Waning Crescent19Sun
20Mon5:361.611:34 AM1.59:101.59:28-0.76:328:18New Moon20Mon
21Tue6:091.51:201.59:171.410:20-0.76:338:17New Moon21Tue
22Wed6:391.42:551.510:011.311:10-0.56:338:17New Moon22Wed
23Thu7:071.34:261.411:031.16:348:16Waxing Crescent23Thu
24Fri7:341.35:561.312:01-0.312:250.96:358:16Waxing Crescent24Fri
25Sat7:591.27:311.112:510.11:490.66:358:15Waxing Crescent25Sat
26Sun8:211.29:211.11:420.42:590.46:368:15Waxing Crescent26Sun
27Mon8:381.111:271.12:350.73:590.16:368:14First Quarter27Mon
28Tue8:371.23:361.04:540.06:378:13First Quarter28Tue
29Wed2:061.25:48-0.26:378:13First Quarter29Wed
30Thu4:251.46:40-0.26:388:12First Quarter30Thu
31Fri5:171.57:31-0.26:398:11Waxing Gibbous31Fri
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