Tides Today & Tomorrow in Stonington, CT

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Stonington, CT.
Next low tide : in 5h 25m at 9:56 pm (0.7 ft)
Next high tide (tomorrow) : 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 - Mar 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:382.61:052.36:360.06:44-0.16:225:37Third Quarter1Wed
2Thu1:362.62:042.37:470.27:520.06:205:39Third Quarter2Thu
3Fri2:382.63:082.39:300.29:130.16:195:40Third Quarter3Fri
4Sat3:452.74:172.411:010.110:380.06:175:41Waning Crescent4Sat
5Sun4:542.85:232.611:580.011:48-0.26:155:42Waning Crescent5Sun
6Mon5:563.06:212.912:45-0.26:145:43Waning Crescent6Mon
7Tue6:503.17:133.112:45-0.31:27-0.36:125:44New Moon7Tue
8Wed7:403.28:023.21:37-0.42:06-0.36:105:45New Moon8Wed
9Thu8:273.28:493.32:26-0.42:43-0.46:095:47New Moon9Thu
10Fri9:133.19:353.23:11-0.43:18-0.46:075:48New Moon10Fri
11Sat9:582.910:213.03:52-0.33:53-0.36:065:49Waxing Crescent11Sat
12Sun10:442.711:072.84:30-0.24:29-0.26:045:50Waxing Crescent12Sun
13Mon11:312.511:552.55:080.05:060.06:025:51Waxing Crescent13Mon
14Tue12:192.25:480.25:470.16:015:52Waxing Crescent14Tue
15Wed12:432.31:082.16:360.36:340.35:595:53First Quarter15Wed
16Thu1:322.11:581.97:400.57:330.45:575:54First Quarter16Thu
17Fri2:232.02:511.99:160.58:440.45:565:56First Quarter17Fri
18Sat3:201.93:501.910:300.510:000.45:545:57First Quarter18Sat
19Sun4:242.04:492.011:190.411:030.35:525:58Waxing Gibbous19Sun
20Mon5:192.15:402.211:580.211:530.15:515:59Waxing Gibbous20Mon
21Tue6:032.26:222.412:340.15:496:00Waxing Gibbous21Tue
22Wed6:412.47:022.612:37-0.11:08-0.15:476:01Waxing Gibbous22Wed
23Thu7:192.67:402.81:19-0.21:41-0.25:456:02Full Moon23Thu
24Fri7:582.78:202.92:01-0.32:15-0.35:446:03Full Moon24Fri
25Sat8:392.89:013.02:42-0.42:51-0.35:426:04Full Moon25Sat
26Sun9:232.89:453.03:23-0.43:27-0.45:406:05Waning Gibbous26Sun
27Mon10:092.710:333.04:04-0.34:06-0.35:396:06Waning Gibbous27Mon
28Tue11:002.611:252.94:46-0.34:48-0.25:376:08Waning Gibbous28Tue
29Wed11:542.65:31-0.15:34-0.15:356:09Waning Gibbous29Wed
30Thu12:222.912:522.56:250.06:290.05:346:10Third Quarter30Thu
31Fri1:212.81:522.57:380.27:390.25:326:11Third Quarter31Fri
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 12:36 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