Tides Today & Tomorrow in Galveston Pier 21, TX

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Galveston Pier 21, TX.
Next low tide : in 13h 37m at 10:03 pm (-0.8 ft)
Next high tide (tomorrow) : 6:44 am (1.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 6:28 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8771450
Common Questions About Tides

Galveston Pier 21, TX Tides - Dec 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:011.88:33-0.66:555:20Full Moon1Sat
2Sun5:511.89:20-0.710:191.56:565:20Full Moon2Sun
3Mon12:471.66:431.710:10-0.810:161.56:575:20Full Moon3Mon
4Tue1:521.67:381.511:04-0.710:401.56:585:20Waning Gibbous4Tue
5Wed2:591.58:331.412:01-0.56:595:20Waning Gibbous5Wed
6Thu4:081.49:221.31:00-0.36:595:20Waning Gibbous6Thu
7Fri5:261.29:591.22:441.21:580.07:005:20Third Quarter7Fri
8Sat7:351.010:281.14:090.92:560.37:015:21Third Quarter8Sat
9Sun10:230.910:521.15:110.63:580.57:015:21Third Quarter9Sun
10Mon12:340.95:590.35:310.87:025:21Third Quarter10Mon
11Tue2:321.16:380.18:111.07:035:21Waning Crescent11Tue
12Wed3:581.27:12-0.17:035:21Waning Crescent12Wed
13Thu4:411.37:43-0.37:045:22Waning Crescent13Thu
14Fri5:101.38:14-0.47:055:22Waning Crescent14Fri
15Sat5:351.38:45-0.57:055:22New Moon15Sat
16Sun6:031.39:17-0.57:065:23New Moon16Sun
17Mon6:351.29:51-0.57:075:23New Moon17Mon
18Tue7:111.210:25-0.59:481.27:075:23New Moon18Tue
19Wed12:001.27:501.211:00-0.57:085:24Waxing Crescent19Wed
20Thu8:261.111:34-0.47:085:24Waxing Crescent20Thu
21Fri8:541.112:09-0.37:095:25Waxing Crescent21Fri
22Sat9:141.012:43-0.17:095:25Waxing Crescent22Sat
23Sun9:250.91:180.17:105:26First Quarter23Sun
24Mon8:530.59:270.94:430.41:570.37:105:26First Quarter24Mon
25Tue11:490.69:200.94:550.12:460.67:115:27First Quarter25Tue
26Wed1:320.95:22-0.24:060.87:115:28First Quarter26Wed
27Thu2:431.16:00-0.57:115:28Waxing Gibbous27Thu
28Fri3:361.26:45-0.77:125:29Waxing Gibbous28Fri
29Sat4:211.37:33-1.07:125:29Waxing Gibbous29Sat
30Sun5:041.38:24-1.19:111.27:125:30Full Moon30Sun
31Mon5:461.29:15-1.29:101.17:135:31Full Moon31Mon
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 2:23 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 1% 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 New Moon (1% 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.

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