Tides Today & Tomorrow in Port Lavaca, TX

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Port Lavaca, TX.
Next low tide : in 4h 41m at 5:05 am (-0.1 ft)
Next high tide : 3:09 pm (0.9 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 6:39 am
Moon phase : Waxing Crescent (15% illuminated)
Tide Station Location : Station #8773259
Common Questions About Tides

Port Lavaca, TX Tides - Sep 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:521.210:010.37:037:47Third Quarter1Thu
2Fri8:591.311:200.27:047:46Waning Crescent2Fri
3Sat10:031.47:047:45Waning Crescent3Sat
4Sun11:021.412:250.27:057:44Waning Crescent4Sun
5Mon11:541.41:210.27:057:42New Moon5Mon
6Tue5:191.32:120.37:057:41New Moon6Tue
7Wed12:411.23:000.42:441.17:067:40New Moon7Wed
8Thu12:201.03:490.63:201.07:067:39New Moon8Thu
9Fri10:060.910:581.24:410.74:010.87:077:38Waxing Crescent9Fri
10Sat8:391.05:470.94:440.77:077:37Waxing Crescent10Sat
11Sun1:361.25:310.57:087:35Waxing Crescent11Sun
12Mon3:571.36:270.57:087:34First Quarter12Mon
13Tue5:441.37:420.57:097:33First Quarter13Tue
14Wed6:571.39:130.47:097:32First Quarter14Wed
15Thu7:551.310:380.47:107:31First Quarter15Thu
16Fri8:451.311:440.47:107:29Waxing Gibbous16Fri
17Sat9:281.27:117:28Waxing Gibbous17Sat
18Sun10:011.212:350.37:117:27Waxing Gibbous18Sun
19Mon10:211.11:140.47:127:26Waxing Gibbous19Mon
20Tue10:221.15:361.01:470.42:371.07:127:25Full Moon20Tue
21Wed10:011.06:571.02:170.52:310.97:137:24Full Moon21Wed
22Thu9:261.08:211.02:470.62:410.87:137:22Full Moon22Thu
23Fri8:430.99:531.13:230.72:590.77:147:21Full Moon23Fri
24Sat8:041.011:351.14:090.93:240.67:147:20Waning Gibbous24Sat
25Sun7:231.05:181.03:560.57:157:19Waning Gibbous25Sun
26Mon1:211.24:360.57:157:18Waning Gibbous26Mon
27Tue3:121.35:300.57:167:16Waning Gibbous27Tue
28Wed4:581.46:450.57:167:15Third Quarter28Wed
29Thu6:231.58:190.57:177:14Third Quarter29Thu
30Fri7:281.59:510.57:177:13Third Quarter30Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8773259)

Common Questions About Port Lavaca, TX Tides

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What time does the tide turn (slack tide) in Port Lavaca, TX today?

Slack tide in Port Lavaca, TX is approximately 10:07 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 Port Lavaca, TX?

Port Lavaca, TX is currently in a spring phase. Tonight's moon is 15% 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 Port Lavaca, 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 Port Lavaca, TX?

Tide predictions for Port Lavaca, 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 Port Lavaca, TX?

Tide data for Port Lavaca, TX is sourced from NOAA Station #8773259. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8773259.

What is the moon phase in Port Lavaca, TX tonight?

Tonight the moon over Port Lavaca, TX is Waxing Crescent (15% illuminated). This places Port Lavaca, 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