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

TIDE TIMES for Thursday, August 13, 2026
The tide is currently falling in Clear Lake, Galveston Bay, TX.
Next low tide : in 5h 15m at 4:25 am (-0.3 ft)
Next high tide : 1:47 pm (1.0 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 6:46 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8770933
Common Questions About Tides

Clear Lake, Galveston Bay, TX Tides - Oct 2100

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:181.37:391.32:100.32:481.17:137:05Waning Crescent1Fri
2Sat10:061.29:501.33:020.53:100.87:147:04New Moon2Sat
3Sun9:151.111:261.43:570.83:380.67:147:03New Moon3Sun
4Mon7:271.14:581.14:090.47:157:02New Moon4Mon
5Tue12:541.54:450.27:157:01Waxing Crescent5Tue
6Wed2:361.65:270.17:167:00Waxing Crescent6Wed
7Thu4:511.66:210.27:176:58Waxing Crescent7Thu
8Fri6:231.77:300.27:176:57First Quarter8Fri
9Sat7:411.78:500.37:186:56First Quarter9Sat
10Sun8:381.710:100.37:186:55First Quarter10Sun
11Mon9:111.611:220.37:196:54First Quarter11Mon
12Tue9:301.57:206:53Waxing Gibbous12Tue
13Wed9:361.512:210.47:206:52Waxing Gibbous13Wed
14Thu9:161.48:031.11:070.63:581.07:216:50Waxing Gibbous14Thu
15Fri8:591.39:501.21:450.83:270.87:226:49Waxing Gibbous15Fri
16Sat8:311.211:571.22:191.03:240.67:226:48Full Moon16Sat
17Sun7:021.32:521.23:410.57:236:47Full Moon17Sun
18Mon5:491.44:010.47:236:46Full Moon18Mon
19Tue6:011.44:200.47:246:45Full Moon19Tue
20Wed3:511.54:400.47:256:44Waning Gibbous20Wed
21Thu4:321.55:090.37:256:43Waning Gibbous21Thu
22Fri5:181.56:010.37:266:42Waning Gibbous22Fri
23Sat6:101.67:150.37:276:41Waning Gibbous23Sat
24Sun6:591.68:340.27:276:40Third Quarter24Sun
25Mon7:411.79:450.27:286:39Third Quarter25Mon
26Tue8:131.710:490.27:296:38Third Quarter26Tue
27Wed8:301.611:480.37:306:38Third Quarter27Wed
28Thu8:291.57:306:37Waning Crescent28Thu
29Fri8:261.37:421.212:460.51:461.07:316:36Waning Crescent29Fri
30Sat8:111.29:251.41:460.72:030.77:326:35Waning Crescent30Sat
31Sun6:581.110:511.52:541.02:290.47:326:34New Moon31Sun
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 9:06 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 spring phase. Tonight's moon is 0% 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 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 New Moon (0% illuminated). This places Clear Lake, Galveston Bay, 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