Tides Today & Tomorrow in New London, CT

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in New London, CT.
Next low tide (tomorrow) : 12:50 am (0.6 ft)
Next high tide : in 3h 02m at 5:59 pm (3.0 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Aug 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:292.55:113.311:010.311:560.35:448:05First Quarter1Wed
2Thu5:362.56:103.412:000.35:458:04Waxing Gibbous2Thu
3Fri6:372.57:063.512:550.212:580.35:468:03Waxing Gibbous3Fri
4Sat7:332.67:583.51:520.11:570.35:478:01Waxing Gibbous4Sat
5Sun8:262.78:503.52:470.02:530.25:488:00Full Moon5Sun
6Mon9:172.89:403.53:38-0.13:470.15:497:59Full Moon6Mon
7Tue10:072.910:283.44:25-0.14:370.15:507:58Full Moon7Tue
8Wed10:573.011:153.35:10-0.15:260.25:517:56Full Moon8Wed
9Thu11:463.05:550.06:160.35:527:55Waning Gibbous9Thu
10Fri12:033.112:363.06:410.27:090.45:537:54Waning Gibbous10Fri
11Sat12:532.91:273.07:280.48:030.55:547:52Waning Gibbous11Sat
12Sun1:432.72:172.98:140.58:570.65:557:51Waning Gibbous12Sun
13Mon2:342.53:092.99:010.79:510.75:567:50Third Quarter13Mon
14Tue3:282.44:032.99:490.810:460.75:577:48Third Quarter14Tue
15Wed4:262.35:012.810:400.911:400.75:587:47Third Quarter15Wed
16Thu5:272.25:582.911:321.05:597:45Third Quarter16Thu
17Fri6:222.36:482.912:300.712:230.96:007:44Waning Crescent17Fri
18Sat7:112.47:343.01:180.61:120.96:017:43Waning Crescent18Sat
19Sun7:562.58:183.12:030.52:000.76:027:41Waning Crescent19Sun
20Mon8:392.68:593.12:470.42:460.66:037:40Waning Crescent20Mon
21Tue9:212.79:383.23:280.23:300.56:047:38New Moon21Tue
22Wed10:012.910:173.24:080.14:140.36:057:37New Moon22Wed
23Thu10:423.010:563.24:480.14:590.36:067:35New Moon23Thu
24Fri11:243.111:383.15:290.05:470.26:077:33Waxing Crescent24Fri
25Sat12:093.26:120.16:390.26:087:32Waxing Crescent25Sat
26Sun12:243.012:593.37:000.17:360.26:097:30Waxing Crescent26Sun
27Mon1:152.91:513.37:510.28:350.36:107:29Waxing Crescent27Mon
28Tue2:102.72:463.38:460.39:360.36:117:27First Quarter28Tue
29Wed3:092.63:473.39:430.410:380.36:127:25First Quarter29Wed
30Thu4:152.54:533.310:450.411:390.36:137:24First Quarter30Thu
31Fri5:252.55:583.311:480.56:147:22Waxing Gibbous31Fri
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 9:24 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 71% 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 Waxing Gibbous (71% 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