Tides Today & Tomorrow in New London, CT

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in New London, CT.
Next low tide : in 6h 00m at 10:25 pm (0.6 ft)
Next high tide (tomorrow) : 4:05 am (2.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:15 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Oct 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun7:002.67:162.912:500.61:060.86:456:30Waxing Gibbous1Sun
2Mon7:422.87:573.01:340.51:530.66:466:28Waxing Gibbous2Mon
3Tue8:222.98:373.02:170.42:390.46:476:26Waxing Gibbous3Tue
4Wed9:013.19:163.12:580.33:240.26:486:25Full Moon4Wed
5Thu9:403.39:563.13:390.24:090.16:496:23Full Moon5Thu
6Fri10:193.410:373.04:190.14:550.06:506:21Full Moon6Fri
7Sat11:013.511:223.05:020.15:44-0.16:516:20Waning Gibbous7Sat
8Sun11:473.55:470.16:360.06:526:18Waning Gibbous8Sun
9Mon12:132.912:403.56:380.27:330.06:546:16Waning Gibbous9Mon
10Tue1:092.81:383.47:360.38:320.16:556:15Waning Gibbous10Tue
11Wed2:092.72:403.38:380.49:320.26:566:13Third Quarter11Wed
12Thu3:122.63:453.19:420.510:330.26:576:12Third Quarter12Thu
13Fri4:202.64:553.010:480.511:330.26:586:10Third Quarter13Fri
14Sat5:282.76:003.011:530.56:596:09Waning Crescent14Sat
15Sun6:282.86:553.012:300.212:540.47:006:07Waning Crescent15Sun
16Mon7:203.07:453.01:240.11:520.37:016:05Waning Crescent16Mon
17Tue8:073.18:302.92:140.12:450.27:026:04Waning Crescent17Tue
18Wed8:513.29:142.93:010.13:330.27:046:02New Moon18Wed
19Thu9:343.39:572.83:450.24:180.17:056:01New Moon19Thu
20Fri10:163.310:402.74:250.35:000.17:065:59New Moon20Fri
21Sat10:573.311:242.65:040.45:410.27:075:58New Moon21Sat
22Sun11:413.25:430.56:250.37:085:56Waxing Crescent22Sun
23Mon12:112.512:273.16:250.77:110.47:095:55Waxing Crescent23Mon
24Tue1:022.51:172.97:110.88:000.57:105:54Waxing Crescent24Tue
25Wed1:542.42:092.88:020.98:490.67:125:52Waxing Crescent25Wed
26Thu2:482.33:022.78:551.09:400.67:135:51First Quarter26Thu
27Fri3:442.33:592.69:501.010:300.67:145:50First Quarter27Fri
28Sat4:432.44:572.610:460.911:200.67:155:48First Quarter28Sat
29Sun5:382.55:512.611:400.87:165:47First Quarter29Sun
30Mon6:262.66:382.712:070.512:320.77:175:46Waxing Gibbous30Mon
31Tue7:082.87:212.812:520.41:210.57:195:44Waxing Gibbous31Tue
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 1:15 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 New London, CT?

New London, CT is currently in a neap phase. Tonight's moon is 48% 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 (48% 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