Tides Today & Tomorrow in Stonington, CT

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Stonington, CT.
Next low tide : in 1h 09m at 10:07 pm (0.8 ft)
Next high tide (tomorrow) : 3:33 am (2.0 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:02 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8458694
Common Questions About Tides

Stonington, CT Tides - Sep 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:552.23:302.58:230.611:150.86:137:22Third Quarter1Sat
2Sun3:522.14:342.49:360.76:147:20Third Quarter2Sun
3Mon4:552.15:402.412:080.710:56 AM0.76:157:18Waning Crescent3Mon
4Tue5:572.26:362.412:470.711:59 AM0.66:167:17Waning Crescent4Tue
5Wed6:492.37:192.51:180.512:480.56:177:15Waning Crescent5Wed
6Thu7:322.57:542.61:480.41:310.36:187:13Waning Crescent6Thu
7Fri8:102.68:262.72:180.32:130.26:197:12New Moon7Fri
8Sat8:452.88:582.72:480.22:540.26:207:10New Moon8Sat
9Sun9:192.89:312.73:190.13:340.16:217:08New Moon9Sun
10Mon9:532.910:062.73:480.14:130.16:227:07New Moon10Mon
11Tue10:292.910:442.64:180.14:500.16:237:05Waxing Crescent11Tue
12Wed11:072.911:272.54:480.15:260.26:247:03Waxing Crescent12Wed
13Thu11:512.95:220.16:040.36:257:01Waxing Crescent13Thu
14Fri12:152.412:412.85:590.26:480.46:267:00Waxing Crescent14Fri
15Sat1:092.31:372.86:440.37:440.56:276:58First Quarter15Sat
16Sun2:072.32:372.87:400.49:100.66:286:56First Quarter16Sun
17Mon3:082.33:412.88:540.411:060.56:296:55First Quarter17Mon
18Tue4:132.44:492.910:230.46:306:53Waxing Gibbous18Tue
19Wed5:212.65:563.012:090.411:48 AM0.26:316:51Waxing Gibbous19Wed
20Thu6:252.96:553.212:550.212:540.16:326:49Waxing Gibbous20Thu
21Fri7:213.27:483.31:350.01:49-0.16:336:48Full Moon21Fri
22Sat8:123.58:363.42:13-0.12:41-0.26:346:46Full Moon22Sat
23Sun9:013.69:243.32:51-0.23:32-0.26:356:44Full Moon23Sun
24Mon9:483.710:103.23:29-0.24:21-0.16:366:42Full Moon24Mon
25Tue10:353.510:583.04:08-0.25:040.06:376:41Waning Gibbous25Tue
26Wed11:233.311:462.74:470.05:450.26:386:39Waning Gibbous26Wed
27Thu12:133.15:260.16:250.46:396:37Waning Gibbous27Thu
28Fri12:382.51:062.86:070.37:120.66:406:36Third Quarter28Fri
29Sat1:322.32:012.56:520.58:240.86:416:34Third Quarter29Sat
30Sun1:262.21:582.46:470.69:280.85:425:32Third Quarter30Sun
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 12:50 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 55% 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 (55% 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