Tides Today & Tomorrow in Port Aransas, TX

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Port Aransas, TX.
Next low tide (tomorrow) : 1:57 am (0.9 ft)
Next high tide : in 8h 06m at 10:31 pm (0.9 ft)
Sunset today : 8:05 pm
Sunrise tomorrow : 7:01 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8775237
Common Questions About Tides

Port Aransas, TX Tides - Feb 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:550.77:00-0.87:166:10Waning Crescent1Fri
2Sat11:430.77:51-0.87:156:11New Moon2Sat
3Sun8:43-0.77:156:11New Moon3Sun
4Mon1:180.64:350.49:36-0.68:180.37:146:12New Moon4Mon
5Tue2:420.64:390.310:32-0.410:330.17:146:13Waxing Crescent5Tue
6Wed4:010.54:520.311:29-0.111:41-0.17:136:14Waxing Crescent6Wed
7Thu5:300.45:060.412:230.17:136:15Waxing Crescent7Thu
8Fri8:450.45:180.412:38-0.31:150.37:126:15First Quarter8Fri
9Sat5:050.51:32-0.47:116:16First Quarter9Sat
10Sun2:360.62:29-0.57:116:17First Quarter10Sun
11Mon3:220.73:32-0.57:106:17First Quarter11Mon
12Tue4:050.74:39-0.57:096:18Waxing Gibbous12Tue
13Wed4:490.75:41-0.57:086:19Waxing Gibbous13Wed
14Thu5:330.66:32-0.57:086:20Waxing Gibbous14Thu
15Fri6:220.67:15-0.48:550.57:076:20Waxing Gibbous15Fri
16Sat7:52-0.47:066:21Full Moon16Sat
17Sun12:270.68:27-0.37:056:22Full Moon17Sun
18Mon1:310.54:140.49:00-0.28:410.37:046:22Full Moon18Mon
19Tue2:300.54:070.49:35-0.19:490.27:036:23Full Moon19Tue
20Wed3:260.54:080.410:120.010:400.17:036:24Waning Gibbous20Wed
21Thu4:240.54:110.410:510.211:240.07:026:24Waning Gibbous21Thu
22Fri5:300.54:100.511:280.37:016:25Waning Gibbous22Fri
23Sat7:180.54:050.512:05-0.111:50 AM0.57:006:26Waning Gibbous23Sat
24Sun3:500.612:47-0.26:596:26Third Quarter24Sun
25Mon3:350.71:33-0.36:586:27Third Quarter25Mon
26Tue3:490.82:27-0.46:576:28Third Quarter26Tue
27Wed4:220.93:31-0.46:566:28Third Quarter27Wed
28Thu5:030.94:42-0.46:556:29Waning Crescent28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8775237)

Common Questions About Port Aransas, TX Tides

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

Slack tide in Port Aransas, TX is approximately 12:14 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 Aransas, TX?

Port Aransas, TX is currently in a transitional phase. Tonight's moon is 27% 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 Aransas, 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 Aransas, TX?

Tide predictions for Port Aransas, 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 Aransas, TX?

Tide data for Port Aransas, TX is sourced from NOAA Station #8775237. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8775237.

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

Tonight the moon over Port Aransas, TX is Waxing Crescent (27% illuminated). This places Port Aransas, 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