Tides Today & Tomorrow in Stonington, CT

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Stonington, CT.
Next low tide (tomorrow) : 9:05 am (0.5 ft)
Next high tide (tomorrow) : in 4h 15m at 3:17 am (2.2 ft)
Sunset today : 8:15 pm
Sunrise tomorrow : 5:32 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8458694
Common Questions About Tides

Stonington, CT Tides - Oct 1977

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:492.85:090.25:520.36:446:30Waning Gibbous1Sat
2Sun12:132.412:322.65:480.36:330.56:456:28Waning Gibbous2Sun
3Mon12:592.31:162.46:300.47:200.66:466:26Third Quarter3Mon
4Tue1:462.22:022.37:180.58:230.76:476:25Third Quarter4Tue
5Wed2:342.12:492.28:160.69:530.76:486:23Third Quarter5Wed
6Thu3:232.13:392.29:280.611:030.66:496:21Third Quarter6Thu
7Fri4:162.24:352.310:420.611:500.56:506:20Waning Crescent7Fri
8Sat5:132.35:332.411:440.46:516:18Waning Crescent8Sat
9Sun6:072.66:262.612:270.312:340.26:526:16Waning Crescent9Sun
10Mon6:562.87:142.81:020.11:200.16:546:15Waning Crescent10Mon
11Tue7:413.18:013.01:370.02:04-0.16:556:13New Moon11Tue
12Wed8:263.38:473.12:14-0.22:49-0.26:566:11New Moon12Wed
13Thu9:123.59:353.12:55-0.33:36-0.36:576:10New Moon13Thu
14Fri10:003.610:243.13:38-0.34:24-0.36:586:08Waxing Crescent14Fri
15Sat10:503.511:163.04:23-0.35:12-0.26:596:07Waxing Crescent15Sat
16Sun11:443.45:09-0.26:010.07:006:05Waxing Crescent16Sun
17Mon12:122.912:413.35:580.06:550.27:016:04Waxing Crescent17Mon
18Tue1:112.81:413.16:510.28:110.37:026:02First Quarter18Tue
19Wed2:122.82:423.07:590.410:140.47:046:01First Quarter19Wed
20Thu3:132.83:442.910:040.511:220.37:055:59First Quarter20Thu
21Fri4:162.84:482.811:400.47:065:58Waxing Gibbous21Fri
22Sat5:202.95:502.812:120.312:360.37:075:56Waxing Gibbous22Sat
23Sun6:203.06:452.912:500.21:200.27:085:55Waxing Gibbous23Sun
24Mon7:123.17:342.91:170.21:560.27:095:53Waxing Gibbous24Mon
25Tue7:583.28:182.91:410.12:280.17:105:52Full Moon25Tue
26Wed8:413.29:002.92:090.13:010.17:125:51Full Moon26Wed
27Thu9:213.29:402.82:430.03:360.17:135:49Full Moon27Thu
28Fri9:593.010:202.73:210.04:130.17:145:48Full Moon28Fri
29Sat10:372.911:002.54:000.14:500.27:155:47Waning Gibbous29Sat
30Sun10:142.710:412.43:400.14:280.26:164:45Waning Gibbous30Sun
31Mon10:532.511:242.24:210.25:060.36:184:44Waning Gibbous31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8458694)

Common Questions About Stonington, CT Tides

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

Slack tide in Stonington, CT is approximately 6:11 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 neap phase. Tonight's moon is 52% 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 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 First Quarter (52% illuminated). This places Stonington, 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