Tides Today & Tomorrow in New London, CT

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in New London, CT.
Next low tide : in 5h 08m at 6:32 pm (0.3 ft)
Next high tide (tomorrow) : 12:18 am (2.9 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:57 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Oct 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:493.210:032.83:420.34:190.25:445:32Full Moon1Wed
2Thu10:253.310:432.74:180.35:050.25:455:30Waning Gibbous2Thu
3Fri11:043.311:292.64:590.45:550.25:465:28Waning Gibbous3Fri
4Sat11:493.35:450.56:500.35:475:26Waning Gibbous4Sat
5Sun12:202.512:423.26:390.67:480.35:485:25Third Quarter5Sun
6Mon1:172.41:423.27:400.78:480.45:495:23Third Quarter6Mon
7Tue2:192.42:513.18:450.79:490.35:505:21Third Quarter7Tue
8Wed3:292.44:043.19:520.710:480.35:515:20Third Quarter8Wed
9Thu4:392.65:103.110:580.611:450.25:525:18Waning Crescent9Thu
10Fri5:382.86:053.112:010.45:545:17Waning Crescent10Fri
11Sat6:303.06:553.112:380.112:590.35:555:15Waning Crescent11Sat
12Sun7:193.27:433.11:280.11:550.15:565:13New Moon12Sun
13Mon8:063.48:293.02:150.02:460.05:575:12New Moon13Mon
14Tue8:513.59:152.92:590.13:350.05:585:10New Moon14Tue
15Wed9:353.510:012.73:420.24:210.05:595:09New Moon15Wed
16Thu10:203.410:492.64:240.35:090.16:005:07Waxing Crescent16Thu
17Fri11:073.311:402.55:070.55:590.36:015:06Waxing Crescent17Fri
18Sat11:573.15:550.76:510.46:025:04Waxing Crescent18Sat
19Sun12:342.412:503.06:490.97:440.56:045:02Waxing Crescent19Sun
20Mon1:292.31:472.87:461.08:380.66:055:01First Quarter20Mon
21Tue2:272.32:472.78:441.19:320.76:064:59First Quarter21Tue
22Wed3:292.33:502.69:431.010:240.76:074:58First Quarter22Wed
23Thu4:302.44:482.610:401.011:120.76:084:57First Quarter23Thu
24Fri5:222.55:372.711:310.911:550.66:094:55Waxing Gibbous24Fri
25Sat6:072.76:202.712:180.76:104:54Waxing Gibbous25Sat
26Sun6:472.87:002.712:350.51:030.56:124:52Waxing Gibbous26Sun
27Mon7:253.07:392.71:130.41:480.46:134:51Waxing Gibbous27Mon
28Tue8:023.28:172.71:510.32:310.26:144:50Full Moon28Tue
29Wed8:373.38:552.72:290.33:130.16:154:48Full Moon29Wed
30Thu9:133.49:352.73:070.23:570.06:164:47Full Moon30Thu
31Fri9:523.510:182.63:480.34:44-0.16:174:46Waning 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 9:25 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 spring phase. Tonight's moon is 11% 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 maximum.

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 Crescent (11% illuminated). This places New London, CT in a spring tide cycle, so tidal ranges are near their weekly maximum 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