Tides Today & Tomorrow in Port Lavaca, TX

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Port Lavaca, TX.
Next low tide : 10:41 pm (0.1 ft)
Next high tide : in 2h 12m at 8:35 am (1.0 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 6:58 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8773259
Common Questions About Tides

Port Lavaca, TX Tides - May 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:250.85:541.01:420.711:45 AM0.76:448:00Waning Crescent1Sun
2Mon9:260.95:121.01:260.512:330.86:438:00Waning Crescent2Mon
3Tue11:141.04:141.01:310.42:001.06:438:01New Moon3Tue
4Wed12:191.11:420.36:428:02New Moon4Wed
5Thu1:061.22:000.26:418:02New Moon5Thu
6Fri1:541.22:270.26:408:03New Moon6Fri
7Sat2:491.23:050.16:408:03New Moon7Sat
8Sun3:511.33:540.16:398:04Waxing Crescent8Sun
9Mon4:491.34:500.16:388:05Waxing Crescent9Mon
10Tue5:351.45:480.16:378:05Waxing Crescent10Tue
11Wed6:041.46:420.16:378:06Waxing Crescent11Wed
12Thu6:191.47:330.16:368:06First Quarter12Thu
13Fri6:221.38:230.26:358:07First Quarter13Fri
14Sat6:111.29:130.46:358:08First Quarter14Sat
15Sun5:311.010:090.66:348:08Waxing Gibbous15Sun
16Mon6:050.94:251.012:040.711:16 AM0.86:348:09Waxing Gibbous16Mon
17Tue8:551.13:161.112:110.512:571.06:338:09Waxing Gibbous17Tue
18Wed10:481.312:360.36:338:10Full Moon18Wed
19Thu12:141.41:130.26:328:10Full Moon19Thu
20Fri1:321.52:010.16:328:11Full Moon20Fri
21Sat2:481.53:010.16:318:12Full Moon21Sat
22Sun3:581.54:080.06:318:12Waning Gibbous22Sun
23Mon4:561.55:140.06:308:13Waning Gibbous23Mon
24Tue5:361.46:150.06:308:13Waning Gibbous24Tue
25Wed5:541.37:080.16:308:14Third Quarter25Wed
26Thu5:501.27:540.26:298:14Third Quarter26Thu
27Fri5:251.08:340.36:298:15Third Quarter27Fri
28Sat4:420.99:110.56:298:16Third Quarter28Sat
29Sun6:400.74:010.912:210.59:44 AM0.66:288:16Waning Crescent29Sun
30Mon3:180.912:080.46:288:17Waning Crescent30Mon
31Tue11:050.912:170.26:288:17Waning Crescent31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8773259)

Common Questions About Port Lavaca, TX Tides

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

Slack tide in Port Lavaca, TX is approximately 3:38 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 Port Lavaca, TX?

Port Lavaca, TX is currently in a transitional phase. Tonight's moon is 65% 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 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 First Quarter (65% illuminated). This places Port Lavaca, 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