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 6h 44m at 10:20 pm (0.7 ft)
Next high tide (tomorrow) : 3:55 am (2.2 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 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:493.05:370.46:090.56:137:23Waning Gibbous1Fri
2Sat12:032.712:303.06:140.56:540.56:147:21Waning Gibbous2Sat
3Sun12:452.61:123.06:540.67:430.56:157:19Waning Gibbous3Sun
4Mon1:282.51:542.97:390.78:350.66:167:18Waning Gibbous4Mon
5Tue2:132.52:382.98:290.79:280.66:177:16Third Quarter5Tue
6Wed3:032.43:302.99:220.810:240.56:187:14Third Quarter6Wed
7Thu4:012.44:343.010:200.711:210.46:197:13Third Quarter7Thu
8Fri5:052.55:373.111:210.66:207:11Waning Crescent8Fri
9Sat6:052.66:333.212:170.312:220.56:217:09Waning Crescent9Sat
10Sun6:582.87:253.31:110.21:210.36:227:08Waning Crescent10Sun
11Mon7:493.18:153.42:030.02:190.16:237:06Waning Crescent11Mon
12Tue8:393.39:053.42:53-0.13:14-0.16:247:04New Moon12Tue
13Wed9:303.59:553.43:42-0.24:08-0.26:257:03New Moon13Wed
14Thu10:203.710:453.34:30-0.25:00-0.26:267:01New Moon14Thu
15Fri11:123.711:373.15:17-0.25:53-0.26:276:59Waxing Crescent15Fri
16Sat12:053.66:070.06:490.06:286:57Waxing Crescent16Sat
17Sun12:312.91:013.57:000.27:470.16:296:56Waxing Crescent17Sun
18Mon1:282.71:583.37:580.48:460.36:306:54First Quarter18Mon
19Tue2:272.62:563.18:570.69:450.46:316:52First Quarter19Tue
20Wed3:272.53:583.09:580.710:450.56:336:50First Quarter20Wed
21Thu4:312.45:022.911:000.811:420.66:346:49First Quarter21Thu
22Fri5:352.56:012.812:000.86:356:47Waxing Gibbous22Fri
23Sat6:292.66:512.812:350.612:540.76:366:45Waxing Gibbous23Sat
24Sun6:162.76:362.81:220.612:430.75:375:44Waxing Gibbous24Sun
25Mon6:592.87:172.81:050.61:280.65:385:42Waxing Gibbous25Mon
26Tue7:403.07:572.81:440.52:090.55:395:40Full Moon26Tue
27Wed8:203.18:372.82:200.52:470.45:405:38Full Moon27Wed
28Thu8:593.19:152.82:540.43:250.45:415:37Full Moon28Thu
29Fri9:373.29:542.83:280.44:030.35:425:35Full Moon29Fri
30Sat10:143.210:332.74:020.54:430.35:435:33Waning Gibbous30Sat
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 1:07 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 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