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 4h 13m 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 - Mar 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:552.72:202.39:260.38:220.36:215:38Third Quarter1Fri
2Sat2:572.53:232.210:410.310:240.36:205:39Third Quarter2Sat
3Sun4:042.44:292.211:360.311:240.36:185:40Waning Crescent3Sun
4Mon5:082.45:292.312:160.36:175:41Waning Crescent4Mon
5Tue6:022.46:202.412:020.212:440.26:155:42Waning Crescent5Tue
6Wed6:472.57:032.512:350.11:080.16:135:44Waning Crescent6Wed
7Thu7:272.67:422.61:090.01:350.06:125:45New Moon7Thu
8Fri8:032.68:182.61:47-0.12:06-0.16:105:46New Moon8Fri
9Sat8:372.68:522.62:26-0.22:39-0.26:095:47New Moon9Sat
10Sun9:102.59:252.63:04-0.23:13-0.26:075:48New Moon10Sun
11Mon9:442.49:572.53:41-0.23:45-0.26:055:49Waxing Crescent11Mon
12Tue10:192.310:322.44:16-0.14:18-0.16:045:50Waxing Crescent12Tue
13Wed10:582.211:112.34:500.04:51-0.16:025:51Waxing Crescent13Wed
14Thu11:412.111:562.35:240.15:270.06:005:53Waxing Crescent14Thu
15Fri12:302.06:040.26:100.15:595:54First Quarter15Fri
16Sat12:462.31:232.06:560.37:050.25:575:55First Quarter16Sat
17Sun1:422.32:192.18:070.38:140.25:555:56First Quarter17Sun
18Mon2:422.33:222.29:380.39:310.15:545:57First Quarter18Mon
19Tue3:502.44:282.410:510.110:45-0.15:525:58Waxing Gibbous19Tue
20Wed4:582.75:302.711:44-0.111:48-0.35:505:59Waxing Gibbous20Wed
21Thu5:582.96:263.112:30-0.35:496:00Waxing Gibbous21Thu
22Fri6:523.17:183.412:45-0.51:15-0.45:476:01Full Moon22Fri
23Sat7:433.38:093.61:39-0.62:00-0.55:456:02Full Moon23Sat
24Sun8:333.38:593.62:33-0.62:46-0.65:436:03Full Moon24Sun
25Mon9:233.29:493.63:25-0.63:30-0.55:426:05Waning Gibbous25Mon
26Tue10:143.110:423.44:14-0.54:13-0.45:406:06Waning Gibbous26Tue
27Wed11:072.911:363.15:01-0.34:56-0.25:386:07Waning Gibbous27Wed
28Thu12:032.75:490.05:420.05:376:08Waning Gibbous28Thu
29Fri12:332.91:002.56:460.26:340.35:356:09Third Quarter29Fri
30Sat1:312.61:572.38:390.47:450.45:336:10Third Quarter30Sat
31Sun2:302.42:572.210:030.49:560.55:326:11Third Quarter31Sun
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