Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 2h 49m at 11:13 pm (-0.3 ft)
Next high tide (tomorrow) : 8:10 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 - May 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:251.810:59-0.26:367:55Full Moon1Mon
2Tue7:181.811:39-0.26:357:56Full Moon2Tue
3Wed8:121.86:347:57Waning Gibbous3Wed
4Thu9:111.712:23-0.16:347:57Waning Gibbous4Thu
5Fri10:231.61:120.06:337:58Waning Gibbous5Fri
6Sat11:471.52:050.16:327:58Waning Gibbous6Sat
7Sun12:381.53:000.26:317:59Third Quarter7Sun
8Mon1:001.43:550.36:318:00Third Quarter8Mon
9Tue1:141.44:500.56:308:00Third Quarter9Tue
10Wed1:241.35:460.68:020.96:298:01Third Quarter10Wed
11Thu1:151.11:301.36:480.88:120.76:298:02Waning Crescent11Thu
12Fri2:451.21:271.37:551.08:310.46:288:02Waning Crescent12Fri
13Sat3:541.41:171.39:051.18:540.26:278:03Waning Crescent13Sat
14Sun4:491.51:051.310:171.39:200.06:278:03Waning Crescent14Sun
15Mon5:361.79:51-0.26:268:04New Moon15Mon
16Tue6:211.810:27-0.36:258:05New Moon16Tue
17Wed7:081.811:10-0.46:258:05New Moon17Wed
18Thu8:001.811:58-0.46:248:06Waxing Crescent18Thu
19Fri8:591.86:248:07Waxing Crescent19Fri
20Sat10:041.712:54-0.36:238:07Waxing Crescent20Sat
21Sun11:001.61:55-0.26:238:08Waxing Crescent21Sun
22Mon11:371.52:580.06:238:08First Quarter22Mon
23Tue12:031.44:030.26:171.06:228:09First Quarter23Tue
24Wed12:241.35:120.56:520.76:228:10First Quarter24Wed
25Thu12:511.212:401.36:360.87:310.46:218:10Waxing Gibbous25Thu
26Fri2:321.412:491.28:191.18:100.16:218:11Waxing Gibbous26Fri
27Sat3:561.512:361.310:171.28:48-0.16:218:11Waxing Gibbous27Sat
28Sun5:021.79:25-0.36:208:12Waxing Gibbous28Sun
29Mon5:541.710:01-0.36:208:12Full Moon29Mon
30Tue6:391.710:39-0.36:208:13Full Moon30Tue
31Wed7:221.711:18-0.36:208:13Full Moon31Wed
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 3:41 am — 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