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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Clear Lake, Galveston Bay, TX.
Next low tide : in 2h 48m at 11:13 pm (0.5 ft)
Next high tide (tomorrow) : 5:43 am (0.7 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 6:20 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8770933
Common Questions About Tides

Clear Lake, Galveston Bay, TX Tides - Dec 2024

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:481.22:29-0.26:585:21New Moon1Sun
2Mon2:341.23:28-0.36:585:21New Moon2Mon
3Tue3:291.34:36-0.36:595:21Waxing Crescent3Tue
4Wed4:201.35:42-0.47:005:21Waxing Crescent4Wed
5Thu5:001.36:42-0.47:015:21Waxing Crescent5Thu
6Fri5:261.27:37-0.37:015:21Waxing Crescent6Fri
7Sat5:361.18:28-0.27:025:21First Quarter7Sat
8Sun5:191.09:180.17:035:21First Quarter8Sun
9Mon5:070.85:100.611:180.410:130.47:045:21First Quarter9Mon
10Tue4:350.77:120.711:180.111:180.67:045:22Waxing Gibbous10Tue
11Wed3:080.79:060.911:43-0.17:055:22Waxing Gibbous11Wed
12Thu10:231.012:16-0.47:065:22Waxing Gibbous12Thu
13Fri11:281.112:57-0.57:065:22Full Moon13Fri
14Sat1:47-0.67:075:23Full Moon14Sat
15Sun12:341.12:45-0.67:075:23Full Moon15Sun
16Mon1:421.13:47-0.67:085:23Full Moon16Mon
17Tue2:471.14:50-0.67:095:24Waning Gibbous17Tue
18Wed3:381.05:47-0.67:095:24Waning Gibbous18Wed
19Thu4:111.06:35-0.57:105:25Waning Gibbous19Thu
20Fri4:270.97:14-0.37:105:25Waning Gibbous20Fri
21Sat4:150.87:44-0.17:115:26Third Quarter21Sat
22Sun3:580.73:420.212:440.27:115:26Third Quarter22Sun
23Mon3:410.611:450.07:125:27Third Quarter23Mon
24Tue2:260.611:00-0.17:125:27Third Quarter24Tue
25Wed1:220.611:11-0.37:135:28Waning Crescent25Wed
26Thu1:150.711:33-0.47:135:28Waning Crescent26Thu
27Fri1:300.712:03-0.57:135:29Waning Crescent27Fri
28Sat1:480.812:45-0.67:145:30Waning Crescent28Sat
29Sun1:010.81:41-0.67:145:30New Moon29Sun
30Mon1:570.92:44-0.77:145:31New Moon30Mon
31Tue2:550.93:46-0.87:145:32New Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8770933)

Common Questions About Clear Lake, Galveston Bay, TX Tides

Show All
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 2:28 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 neap phase. Tonight's moon is 48% 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 minimum.

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 First Quarter (48% illuminated). This places Clear Lake, Galveston Bay, TX in a neap tide cycle, so tidal ranges are near their weekly minimum 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