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 1h 44m 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 - Aug 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:580.82:380.63:13-0.16:528:19Third Quarter1Wed
2Thu6:370.84:08-0.26:538:18Third Quarter2Thu
3Fri4:001.05:06-0.26:538:17Third Quarter3Fri
4Sat4:451.06:03-0.26:548:17Waning Crescent4Sat
5Sun5:291.16:54-0.26:548:16Waning Crescent5Sun
6Mon6:161.07:39-0.26:558:15Waning Crescent6Mon
7Tue7:091.08:18-0.26:558:14Waning Crescent7Tue
8Wed8:171.08:55-0.16:568:14New Moon8Wed
9Thu12:300.99:31-0.16:578:13New Moon9Thu
10Fri1:530.910:070.06:578:12New Moon10Fri
11Sat3:050.910:430.16:588:11New Moon11Sat
12Sun5:520.84:090.811:420.711:210.36:588:10Waxing Crescent12Sun
13Mon5:460.85:140.812:250.66:598:10Waxing Crescent13Mon
14Tue5:450.86:300.812:000.41:030.46:598:09Waxing Crescent14Tue
15Wed5:440.88:540.812:340.61:400.37:008:08Waxing Crescent15Wed
16Thu5:380.912:450.82:200.27:008:07First Quarter16Thu
17Fri5:181.03:060.07:018:06First Quarter17Fri
18Sat4:541.14:01-0.17:018:05First Quarter18Sat
19Sun5:081.25:06-0.27:028:04First Quarter19Sun
20Mon5:451.36:13-0.27:028:03Waxing Gibbous20Mon
21Tue6:341.37:16-0.27:038:02Waxing Gibbous21Tue
22Wed10:101.38:13-0.27:038:01Waxing Gibbous22Wed
23Thu12:121.29:09-0.17:048:00Full Moon23Thu
24Fri1:501.210:040.17:047:59Full Moon24Fri
25Sat4:500.93:201.28:580.811:030.37:057:58Full Moon25Sat
26Sun4:500.94:421.110:330.67:057:57Waning Gibbous26Sun
27Mon5:000.96:061.112:040.611:43 AM0.47:067:56Waning Gibbous27Mon
28Tue5:131.08:341.11:040.812:410.37:067:55Waning Gibbous28Tue
29Wed5:221.12:051.01:320.27:077:54Waning Gibbous29Wed
30Thu12:091.22:230.17:077:53Third Quarter30Thu
31Fri2:101.33:150.17:077:52Third Quarter31Fri
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