Tides Today & Tomorrow in New London, CT

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in New London, CT.
Next low tide : in 3h 00m at 9:18 am (0.8 ft)
Next high tide : 3:24 pm (3.0 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:01 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Sep 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:053.29:273.43:18-0.13:330.06:147:21New Moon1Sun
2Mon9:523.410:143.44:04-0.24:25-0.16:157:20New Moon2Mon
3Tue10:413.511:033.34:50-0.25:16-0.26:167:18New Moon3Tue
4Wed11:323.611:553.25:37-0.26:11-0.16:177:16Waxing Crescent4Wed
5Thu12:273.66:28-0.17:090.06:187:15Waxing Crescent5Thu
6Fri12:513.01:253.57:230.18:090.16:197:13Waxing Crescent6Fri
7Sat1:502.82:243.48:220.29:110.26:207:11First Quarter7Sat
8Sun2:512.73:263.39:230.410:130.36:217:10First Quarter8Sun
9Mon3:562.64:323.110:260.511:150.46:227:08First Quarter9Mon
10Tue5:052.55:383.011:300.56:237:06Waxing Gibbous10Tue
11Wed6:092.66:363.012:140.412:310.66:247:05Waxing Gibbous11Wed
12Thu7:022.77:253.01:090.41:270.56:257:03Waxing Gibbous12Thu
13Fri7:492.88:093.01:590.42:190.56:267:01Waxing Gibbous13Fri
14Sat8:322.98:502.92:450.43:060.56:276:59Full Moon14Sat
15Sun9:133.09:302.93:250.43:480.46:286:58Full Moon15Sun
16Mon9:543.110:102.94:020.44:270.46:296:56Full Moon16Mon
17Tue10:343.110:502.84:360.45:040.46:306:54Full Moon17Tue
18Wed11:143.111:322.85:100.55:420.46:316:53Full Moon18Wed
19Thu11:563.15:440.66:240.56:326:51Waning Gibbous19Thu
20Fri12:162.712:393.06:220.77:090.56:336:49Waning Gibbous20Fri
21Sat1:022.61:242.97:040.87:580.66:346:47Waning Gibbous21Sat
22Sun1:502.52:102.97:510.98:480.66:356:46Waning Gibbous22Sun
23Mon2:382.42:582.88:420.99:400.66:366:44Third Quarter23Mon
24Tue3:302.43:522.89:360.910:340.66:376:42Third Quarter24Tue
25Wed4:282.44:532.810:340.911:280.56:386:41Third Quarter25Wed
26Thu5:262.55:502.911:330.76:396:39Waning Crescent26Thu
27Fri6:182.76:413.112:200.412:310.66:406:37Waning Crescent27Fri
28Sat7:062.97:283.21:110.21:270.36:426:35Waning Crescent28Sat
29Sun6:523.27:153.31:000.11:220.15:435:34Waning Crescent29Sun
30Mon7:393.58:033.31:49-0.12:16-0.15:445:32New Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8461490)

Common Questions About New London, CT Tides

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

Slack tide in New London, CT is approximately 12:21 pm — 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 New London, CT?

New London, CT is currently in a neap phase. Tonight's moon is 46% 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 New London, 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 New London, CT?

Tide predictions for New London, 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 New London, CT?

Tide data for New London, CT is sourced from NOAA Station #8461490. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8461490.

What is the moon phase in New London, CT tonight?

Tonight the moon over New London, CT is First Quarter (46% illuminated). This places New London, 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