Tides Today & Tomorrow in Southport, CT

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Southport, CT.
Next low tide : 10:58 am (1.1 ft)
Next high tide : in 2h 54m at 4:47 am (6.4 ft)
Sunset today : 7:46 pm
Sunrise tomorrow : 6:07 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8467726
Common Questions About Tides

Southport, CT Tides - Jun 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:306.710:407.64:240.04:330.65:228:18Waxing Gibbous1Sun
2Mon11:136.811:227.65:080.05:170.75:228:19Full Moon2Mon
3Tue11:566.85:50-0.15:590.85:228:20Full Moon3Tue
4Wed12:037.512:376.86:330.06:420.85:218:20Full Moon4Wed
5Thu12:447.51:196.77:140.07:240.95:218:21Full Moon5Thu
6Fri1:257.32:006.77:550.28:061.05:218:22Waning Gibbous6Fri
7Sat2:077.22:426.68:360.38:491.25:208:22Waning Gibbous7Sat
8Sun2:497.03:256.59:190.59:351.35:208:23Waning Gibbous8Sun
9Mon3:346.74:116.510:030.710:251.45:208:24Waning Gibbous9Mon
10Tue4:236.54:596.610:490.911:171.35:208:24Third Quarter10Tue
11Wed5:146.45:476.711:360.95:198:25Third Quarter11Wed
12Thu6:076.36:366.912:101.212:251.05:198:25Third Quarter12Thu
13Fri7:026.37:277.21:040.91:150.95:198:26Third Quarter13Fri
14Sat7:576.58:197.61:580.62:070.85:198:26Waning Crescent14Sat
15Sun8:536.79:117.92:520.23:000.65:198:27Waning Crescent15Sun
16Mon9:487.010:038.33:45-0.23:530.35:198:27Waning Crescent16Mon
17Tue10:407.310:558.64:36-0.64:460.15:198:27New Moon17Tue
18Wed11:337.511:498.75:28-0.95:39-0.15:198:28New Moon18Wed
19Thu12:277.76:20-1.06:34-0.25:208:28New Moon19Thu
20Fri12:438.71:217.87:13-1.17:30-0.25:208:28Waxing Crescent20Fri
21Sat1:378.62:157.98:06-1.08:27-0.25:208:28Waxing Crescent21Sat
22Sun2:328.33:107.88:59-0.89:240.05:208:29Waxing Crescent22Sun
23Mon3:297.94:067.79:54-0.510:250.15:208:29Waxing Crescent23Mon
24Tue4:287.45:047.610:50-0.211:250.35:218:29First Quarter24Tue
25Wed5:287.16:007.511:460.25:218:29First Quarter25Wed
26Thu6:276.76:557.412:240.412:400.55:218:29First Quarter26Thu
27Fri7:256.57:487.31:220.41:350.75:228:29Waxing Gibbous27Fri
28Sat8:226.48:407.32:170.42:280.95:228:29Waxing Gibbous28Sat
29Sun9:156.49:287.33:100.43:181.05:228:29Waxing Gibbous29Sun
30Mon10:036.410:137.33:580.34:051.05:238:29Waxing Gibbous30Mon
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 7:52 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 neap phase. Tonight's moon is 46% 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 near their weekly minimum.

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 First Quarter (46% illuminated). This places Southport, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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