Tides Today & Tomorrow in Clear Lake, Galveston Bay, TX

TIDE TIMES for Thursday, July 23, 2026
The tide is currently falling in Clear Lake, Galveston Bay, TX.
Next low tide : in 1h 42m at 11:49 pm (-0.2 ft)
Next high tide (tomorrow) : 11:32 am (1.1 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 6:35 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8770933
Common Questions About Tides

Clear Lake, Galveston Bay, TX Tides - Sep 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:350.811:021.04:320.34:400.66:587:41New Moon1Tue
2Wed10:350.85:230.65:160.46:587:40Waxing Crescent2Wed
3Thu1:021.19:16 AM0.96:190.85:550.26:597:39Waxing Crescent3Thu
4Fri2:481.16:400.16:597:38Waxing Crescent4Fri
5Sat5:461.27:350.17:007:37Waxing Crescent5Sat
6Sun7:201.38:420.17:007:36First Quarter6Sun
7Mon8:321.49:580.17:017:34First Quarter7Mon
8Tue9:321.411:150.17:017:33First Quarter8Tue
9Wed10:151.47:027:32Waxing Gibbous9Wed
10Thu10:451.412:240.17:027:31Waxing Gibbous10Thu
11Fri11:031.31:220.17:037:29Waxing Gibbous11Fri
12Sat11:031.22:100.27:037:28Waxing Gibbous12Sat
13Sun10:421.19:131.02:530.33:410.97:047:27Full Moon13Sun
14Mon10:371.110:521.13:340.54:080.77:047:26Full Moon14Mon
15Tue10:171.04:150.74:390.57:057:24Full Moon15Tue
16Wed12:181.19:15 AM1.04:570.95:110.47:057:23Waning Gibbous16Wed
17Thu1:461.27:51 AM1.15:431.15:420.37:067:22Waning Gibbous17Thu
18Fri4:011.26:140.37:067:21Waning Gibbous18Fri
19Sat5:301.36:500.37:077:20Waning Gibbous19Sat
20Sun6:371.37:370.37:087:18Third Quarter20Sun
21Mon7:331.48:400.37:087:17Third Quarter21Mon
22Tue8:231.49:500.37:097:16Third Quarter22Tue
23Wed9:051.510:560.27:097:15Third Quarter23Wed
24Thu9:391.511:560.27:107:13Third Quarter24Thu
25Fri10:041.57:107:12Waning Crescent25Fri
26Sat10:071.412:520.27:117:11Waning Crescent26Sat
27Sun9:571.37:031.21:450.32:311.17:117:10Waning Crescent27Sun
28Mon9:531.29:181.32:380.52:550.97:127:08New Moon28Mon
29Tue9:211.110:561.43:330.83:250.67:127:07New Moon29Tue
30Wed8:121.14:321.03:580.47:137:06New Moon30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8770933)

Common Questions About Clear Lake, Galveston Bay, TX Tides

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What time does the tide turn (slack tide) in Clear Lake, Galveston Bay, TX today?

Slack tide in Clear Lake, Galveston Bay, TX is approximately 5:40 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 Clear Lake, Galveston Bay, TX?

Clear Lake, Galveston Bay, TX is currently in a transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

What datum are Clear Lake, Galveston Bay, 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 Clear Lake, Galveston Bay, TX?

Tide predictions for Clear Lake, Galveston Bay, 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 Clear Lake, Galveston Bay, TX?

Tide data for Clear Lake, Galveston Bay, TX is sourced from NOAA Station #8770933. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8770933.

What is the moon phase in Clear Lake, Galveston Bay, TX tonight?

Tonight the moon over Clear Lake, Galveston Bay, TX is Waxing Gibbous (71% illuminated). This places Clear Lake, Galveston Bay, TX in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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