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

TIDE TIMES for Monday, July 27, 2026
The tide is currently rising in Clear Lake, Galveston Bay, TX.
Next low tide (tomorrow) : 2:57 am (-0.2 ft)
Next high tide : in 12h 54m at 3:17 pm (1.1 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 6:37 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8770933
Common Questions About Tides

Clear Lake, Galveston Bay, TX Tides - Mar 2071

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:040.610:560.62:420.52:50-0.16:456:19New Moon1Sun
2Mon7:370.511:060.53:230.43:380.06:446:20New Moon2Mon
3Tue9:220.610:560.54:040.34:310.16:436:20New Moon3Tue
4Wed11:170.610:360.54:470.25:280.26:416:21Waxing Crescent4Wed
5Thu1:090.75:320.16:280.46:406:22Waxing Crescent5Thu
6Fri2:430.76:230.07:310.66:396:22Waxing Crescent6Fri
7Sat4:260.87:19-0.16:386:23First Quarter7Sat
8Sun7:420.89:20-0.17:377:24First Quarter8Sun
9Mon8:520.910:24-0.27:367:24First Quarter9Mon
10Tue9:470.911:29-0.27:357:25First Quarter10Tue
11Wed10:290.912:31-0.27:347:26Waxing Gibbous11Wed
12Thu10:570.91:28-0.17:327:26Waxing Gibbous12Thu
13Fri10:550.82:20-0.17:317:27Waxing Gibbous13Fri
14Sat7:100.810:550.82:430.73:100.07:307:28Full Moon14Sat
15Sun9:060.811:070.73:230.63:580.27:297:28Full Moon15Sun
16Mon10:410.811:170.74:050.44:480.37:287:29Full Moon16Mon
17Tue12:010.94:480.35:390.57:277:29Full Moon17Tue
18Wed1:180.95:320.26:320.67:257:30Waning Gibbous18Wed
19Thu2:371.06:180.17:247:31Waning Gibbous19Thu
20Fri4:141.07:060.17:237:31Waning Gibbous20Fri
21Sat6:171.07:570.17:227:32Third Quarter21Sat
22Sun7:311.08:500.17:217:32Third Quarter22Sun
23Mon8:301.09:440.27:197:33Third Quarter23Mon
24Tue9:171.010:370.27:187:34Third Quarter24Tue
25Wed9:541.011:270.37:177:34Third Quarter25Wed
26Thu10:131.012:150.37:167:35Waning Crescent26Thu
27Fri9:421.01:010.37:157:35Waning Crescent27Fri
28Sat9:491.01:490.37:137:36Waning Crescent28Sat
29Sun7:010.99:590.92:330.82:390.47:127:37Waning Crescent29Sun
30Mon8:501.09:420.93:060.73:320.57:117:37New Moon30Mon
31Tue10:361.09:180.93:420.54:270.77:107:38New Moon31Tue
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 9:07 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 Clear Lake, Galveston Bay, TX?

Clear Lake, Galveston Bay, TX is currently in a spring phase. Tonight's moon is 97% 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 Full Moon (97% 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