Tides Today & Tomorrow in New London, CT

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in New London, CT.
Next low tide : in 48m at 11:11 am (1.0 ft)
Next high tide : 5:26 pm (2.8 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Sep 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:482.77:203.21:020.21:130.46:147:22Waning Crescent1Wed
2Thu7:412.98:103.21:560.12:110.36:157:20Waning Crescent2Thu
3Fri8:313.08:573.22:470.13:060.26:167:19New Moon3Fri
4Sat9:193.19:423.13:340.03:560.26:177:17New Moon4Sat
5Sun10:043.210:263.04:170.14:420.26:187:15New Moon5Sun
6Mon10:493.311:102.94:580.25:280.26:197:14New Moon6Mon
7Tue11:333.311:562.75:390.36:140.36:207:12Waxing Crescent7Tue
8Wed12:203.26:210.57:020.46:217:10Waxing Crescent8Wed
9Thu12:452.61:093.17:060.77:530.56:227:09Waxing Crescent9Thu
10Fri1:362.52:003.07:540.88:440.76:237:07Waxing Crescent10Fri
11Sat2:292.42:532.98:440.99:370.76:247:05First Quarter11Sat
12Sun3:242.33:502.89:381.010:300.86:257:03First Quarter12Sun
13Mon4:242.34:512.810:331.011:230.86:267:02First Quarter13Mon
14Tue5:252.35:492.811:291.06:277:00First Quarter14Tue
15Wed6:192.46:392.812:120.712:210.96:286:58Waxing Gibbous15Wed
16Thu7:052.67:222.912:580.61:100.76:296:57Waxing Gibbous16Thu
17Fri7:472.88:033.01:410.51:580.66:306:55Waxing Gibbous17Fri
18Sat8:272.98:423.02:230.42:450.46:316:53Waxing Gibbous18Sat
19Sun9:063.19:213.13:040.33:310.26:326:51Full Moon19Sun
20Mon9:453.310:013.13:440.24:160.16:336:50Full Moon20Mon
21Tue10:253.510:433.04:250.15:030.06:346:48Full Moon21Tue
22Wed11:083.511:292.95:070.15:520.06:356:46Waning Gibbous22Wed
23Thu11:563.55:530.26:460.06:366:44Waning Gibbous23Thu
24Fri12:192.812:503.56:450.37:430.16:376:43Waning Gibbous24Fri
25Sat1:162.71:493.47:430.48:430.26:386:41Third Quarter25Sat
26Sun1:162.61:523.37:460.58:440.35:395:39Third Quarter26Sun
27Mon2:202.62:593.18:510.59:450.35:405:38Third Quarter27Mon
28Tue3:302.64:093.09:580.510:450.35:415:36Third Quarter28Tue
29Wed4:382.75:133.011:030.511:410.35:425:34Waning Crescent29Wed
30Thu5:382.86:063.012:040.45:435:32Waning Crescent30Thu
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 2:18 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 transitional phase. Tonight's moon is 65% 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 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 (65% illuminated). This places New London, 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