Tides Today & Tomorrow in Stonington, CT

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Stonington, CT.
Next low tide : in 5h 14m at 6:05 am (0.1 ft)
Next high tide : 12:45 pm (3.0 ft)
Sunset today : 7:44 pm
Sunrise tomorrow : 5:59 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8458694
Common Questions About Tides

Stonington, CT Tides - Apr 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:322.34:002.210:560.411:010.45:306:12Waning Crescent1Mon
2Tue4:362.25:012.311:310.411:410.35:286:13Waning Crescent2Tue
3Wed5:312.35:522.411:580.35:276:14Waning Crescent3Wed
4Thu6:172.46:352.512:150.212:240.25:256:15Waning Crescent4Thu
5Fri6:562.47:132.612:500.112:550.15:236:16Waning Crescent5Fri
6Sat7:322.57:472.71:270.01:280.05:226:17New Moon6Sat
7Sun8:062.58:202.72:06-0.12:03-0.15:206:18New Moon7Sun
8Mon8:402.58:532.72:45-0.12:39-0.15:186:20New Moon8Mon
9Tue9:152.59:262.73:22-0.13:14-0.15:176:21New Moon9Tue
10Wed9:532.410:032.63:56-0.13:48-0.15:156:22Waxing Crescent10Wed
11Thu10:342.310:442.64:290.04:240.05:146:23Waxing Crescent11Thu
12Fri11:202.311:322.55:030.15:020.15:126:24Waxing Crescent12Fri
13Sat12:102.25:420.25:460.15:106:25Waxing Crescent13Sat
14Sun12:252.51:042.36:310.36:410.25:096:26First Quarter14Sun
15Mon1:212.52:012.37:370.37:510.25:076:27First Quarter15Mon
16Tue2:212.53:012.58:580.39:120.25:066:28First Quarter16Tue
17Wed3:252.64:052.710:140.110:310.05:046:29Waxing Gibbous17Wed
18Thu4:322.75:083.011:100.011:37-0.15:036:30Waxing Gibbous18Thu
19Fri5:352.96:053.311:58-0.25:016:31Waxing Gibbous19Fri
20Sat6:313.06:593.512:34-0.312:44-0.35:006:32Full Moon20Sat
21Sun7:243.27:503.71:27-0.41:30-0.44:586:34Full Moon21Sun
22Mon8:153.28:403.72:21-0.42:16-0.44:576:35Full Moon22Mon
23Tue9:053.29:303.63:12-0.43:03-0.34:556:36Full Moon23Tue
24Wed9:553.010:213.44:00-0.33:48-0.24:546:37Waning Gibbous24Wed
25Thu10:472.911:133.14:44-0.14:33-0.14:526:38Waning Gibbous25Thu
26Fri11:412.75:270.15:180.24:516:39Waning Gibbous26Fri
27Sat12:082.912:372.56:140.36:080.44:506:40Third Quarter27Sat
28Sun1:032.62:322.48:140.48:110.55:487:41Third Quarter28Sun
29Mon2:582.43:272.39:410.59:450.65:477:42Third Quarter29Mon
30Tue3:532.24:242.310:440.511:140.65:457:43Third Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8458694)

Common Questions About Stonington, CT Tides

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

Slack tide in Stonington, CT is approximately 9:25 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 Stonington, CT?

Stonington, 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 Stonington, 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 Stonington, CT?

Tide predictions for Stonington, 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 Stonington, CT?

Tide data for Stonington, CT is sourced from NOAA Station #8458694. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8458694.

What is the moon phase in Stonington, CT tonight?

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