Tides Today & Tomorrow in New London, CT

TIDE TIMES for Sunday, August 23, 2026
The tide is currently rising in New London, CT.
Next low tide (tomorrow) : 1:48 am (0.7 ft)
Next high tide : in 3h 05m at 7:14 pm (2.9 ft)
Sunset today : 7:36 pm
Sunrise tomorrow : 6:05 am
Moon phase : Waxing Gibbous (81% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Apr 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:262.52:002.08:100.48:050.85:316:12First Quarter1Sat
2Sun2:242.42:572.09:030.59:030.85:306:14First Quarter2Sun
3Mon3:282.33:582.09:570.510:020.85:286:15First Quarter3Mon
4Tue4:302.34:552.110:490.510:570.65:266:16First Quarter4Tue
5Wed5:232.45:422.311:360.411:490.55:256:17Waxing Gibbous5Wed
6Thu6:072.56:252.512:210.35:236:18Waxing Gibbous6Thu
7Fri6:482.67:042.812:390.31:040.25:216:19Waxing Gibbous7Fri
8Sat7:282.77:433.01:290.11:460.15:206:20Waxing Gibbous8Sat
9Sun8:092.78:243.32:17-0.22:270.05:186:21Full Moon9Sun
10Mon8:512.79:053.43:05-0.33:09-0.15:166:22Full Moon10Mon
11Tue9:352.69:503.53:52-0.43:53-0.15:156:23Full Moon11Tue
12Wed10:222.610:403.54:42-0.44:400.05:136:24Waning Gibbous12Wed
13Thu11:142.511:363.35:35-0.35:340.15:126:25Waning Gibbous13Thu
14Fri12:122.46:33-0.26:360.25:106:26Waning Gibbous14Fri
15Sat12:373.21:132.47:330.07:410.35:086:28Third Quarter15Sat
16Sun1:423.02:182.38:340.18:490.45:076:29Third Quarter16Sun
17Mon2:512.83:292.49:360.29:580.45:056:30Third Quarter17Mon
18Tue4:032.74:402.510:360.211:040.35:046:31Third Quarter18Tue
19Wed5:082.65:392.611:320.25:026:32Waning Crescent19Wed
20Thu6:022.66:282.812:050.312:240.25:016:33Waning Crescent20Thu
21Fri6:492.57:113.01:010.21:110.34:596:34Waning Crescent21Fri
22Sat7:322.57:523.11:520.11:550.34:586:35Waning Crescent22Sat
23Sun8:142.48:313.12:380.12:350.44:566:36New Moon23Sun
24Mon8:552.49:093.13:190.03:120.44:556:37New Moon24Mon
25Tue9:372.49:493.13:570.03:480.64:536:38New Moon25Tue
26Wed10:202.410:303.04:350.14:240.74:526:39New Moon26Wed
27Thu11:052.311:152.85:150.25:030.84:516:40Waxing Crescent27Thu
28Fri11:532.35:590.35:480.84:496:41Waxing Crescent28Fri
29Sat12:042.712:432.36:460.46:390.94:486:43Waxing Crescent29Sat
30Sun12:552.62:332.38:340.58:330.95:467:44Waxing Crescent30Sun
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 10:31 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 81% 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 Gibbous (81% 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