Tides Today & Tomorrow in Southport, CT

TIDE TIMES for Monday, August 17, 2026
The tide is currently rising in Southport, CT.
Next low tide : 9:56 pm (0.3 ft)
Next high tide : in 3h 06m at 3:31 pm (7.7 ft)
Sunset today : 7:49 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8467726
Common Questions About Tides

Southport, CT Tides - Oct 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:076.52:197.08:141.28:500.85:495:36Waning Gibbous1Sun
2Mon2:516.23:056.78:591.59:391.15:505:34Third Quarter2Mon
3Tue3:426.03:576.59:511.710:331.35:515:33Third Quarter3Tue
4Wed4:365.94:536.410:471.811:281.35:525:31Third Quarter4Wed
5Thu5:325.95:506.411:461.75:535:29Third Quarter5Thu
6Fri6:286.26:486.612:231.212:451.55:545:28Waning Crescent6Fri
7Sat7:236.67:456.81:171.01:421.05:555:26Waning Crescent7Sat
8Sun8:147.18:387.12:080.72:350.55:565:24Waning Crescent8Sun
9Mon9:017.69:277.52:550.33:23-0.15:575:23Waning Crescent9Mon
10Tue9:478.110:157.73:400.04:11-0.55:585:21New Moon10Tue
11Wed10:338.611:047.94:25-0.24:59-0.96:005:19New Moon11Wed
12Thu11:208.811:537.95:12-0.45:48-1.16:015:18New Moon12Thu
13Fri12:098.86:00-0.46:37-1.16:025:16Waxing Crescent13Fri
14Sat12:437.812:598.76:50-0.37:28-0.96:035:15Waxing Crescent14Sat
15Sun1:347.61:528.47:420.08:22-0.56:045:13Waxing Crescent15Sun
16Mon2:287.32:487.98:390.39:21-0.16:055:12First Quarter16Mon
17Tue3:287.03:507.49:420.610:230.26:065:10First Quarter17Tue
18Wed4:326.84:557.110:480.811:250.56:075:09First Quarter18Wed
19Thu5:376.76:016.811:530.96:085:07First Quarter19Thu
20Fri6:396.87:056.712:260.612:570.86:095:06Waxing Gibbous20Fri
21Sat7:386.98:046.71:240.61:560.66:115:04Waxing Gibbous21Sat
22Sun8:297.18:556.82:170.62:480.46:125:03Waxing Gibbous22Sun
23Mon9:137.39:396.93:040.53:330.26:135:01Waxing Gibbous23Mon
24Tue9:537.510:206.93:460.54:150.06:145:00Full Moon24Tue
25Wed10:317.511:006.94:270.54:560.06:154:58Full Moon25Wed
26Thu11:097.511:396.95:060.65:360.06:164:57Full Moon26Thu
27Fri11:477.55:450.76:150.06:184:56Full Moon27Fri
28Sat12:186.812:267.36:240.86:550.26:194:54Waning Gibbous28Sat
29Sun12:586.61:067.27:031.07:350.46:204:53Waning Gibbous29Sun
30Mon1:396.41:476.97:441.28:180.66:214:52Waning Gibbous30Mon
31Tue2:226.22:326.78:281.49:050.96:224:51Waning Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8467726)

Common Questions About Southport, CT Tides

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What time does the tide turn (slack tide) in Southport, CT today?

Slack tide in Southport, CT is approximately 6:43 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 Southport, CT?

Southport, CT 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 Southport, CT 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 Southport, CT?

Tide predictions for Southport, CT 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 Southport, CT?

Tide data for Southport, CT is sourced from NOAA Station #8467726. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8467726.

What is the moon phase in Southport, CT tonight?

Tonight the moon over Southport, CT is Waxing Crescent (27% illuminated). This places Southport, CT 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