Tides Today & Tomorrow in Southport, CT

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Southport, CT.
Next low tide : in 1h 02m at 9:56 pm (0.3 ft)
Next high tide (tomorrow) : 3:57 am (6.8 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 - Jan 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:466.89:235.92:400.93:210.17:184:34Waxing Gibbous1Sun
2Mon9:317.010:076.13:250.84:04-0.17:184:35Full Moon2Mon
3Tue10:157.110:516.34:100.64:48-0.37:184:36Full Moon3Tue
4Wed11:007.311:366.64:560.55:31-0.57:184:37Full Moon4Wed
5Thu11:457.35:420.36:14-0.67:184:38Full Moon5Thu
6Fri12:206.812:317.36:280.26:56-0.67:184:39Waning Gibbous6Fri
7Sat1:047.01:177.27:150.07:39-0.67:184:40Waning Gibbous7Sat
8Sun1:497.22:067.08:04-0.18:25-0.47:184:41Waning Gibbous8Sun
9Mon2:377.32:586.88:57-0.19:14-0.37:184:42Third Quarter9Mon
10Tue3:287.43:546.59:54-0.110:07-0.17:184:43Third Quarter10Tue
11Wed4:227.44:536.310:52-0.111:030.17:174:44Third Quarter11Wed
12Thu5:187.45:536.211:52-0.27:174:45Third Quarter12Thu
13Fri6:177.46:566.212:020.212:53-0.27:174:46Waning Crescent13Fri
14Sat7:187.47:596.21:040.31:54-0.47:164:47Waning Crescent14Sat
15Sun8:187.58:586.42:060.22:52-0.57:164:48Waning Crescent15Sun
16Mon9:157.59:536.63:040.13:46-0.77:154:49New Moon16Mon
17Tue10:087.610:456.83:590.04:37-0.87:154:51New Moon17Tue
18Wed10:597.511:346.94:52-0.15:26-0.87:154:52New Moon18Wed
19Thu11:487.45:43-0.16:12-0.77:144:53New Moon19Thu
20Fri12:217.012:347.26:31-0.16:56-0.67:134:54Waxing Crescent20Fri
21Sat1:057.01:196.97:180.07:39-0.47:134:55Waxing Crescent21Sat
22Sun1:476.92:036.68:030.18:210.07:124:57Waxing Crescent22Sun
23Mon2:296.82:486.38:500.39:040.37:114:58Waxing Crescent23Mon
24Tue3:136.73:355.99:380.59:490.67:114:59First Quarter24Tue
25Wed3:586.54:245.710:270.610:360.97:105:00First Quarter25Wed
26Thu4:456.45:155.511:180.711:241.17:095:01First Quarter26Thu
27Fri5:346.36:085.312:100.87:085:03First Quarter27Fri
28Sat6:266.37:045.312:161.21:050.77:085:04Waxing Gibbous28Sat
29Sun7:206.47:595.51:101.21:590.57:075:05Waxing Gibbous29Sun
30Mon8:136.68:515.82:051.02:490.37:065:06Waxing Gibbous30Mon
31Tue9:036.89:396.12:560.83:360.07:055:08Waxing 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 12:56 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 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