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 : 1:00 pm (0.9 ft)
Next high tide : in 4h 59m at 6:52 am (2.3 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 - Jul 1934

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:013.21:433.07:42-0.18:120.35:188:25Waning Gibbous1Sun
2Mon1:573.02:413.18:360.09:160.35:188:25Third Quarter2Mon
3Tue2:542.73:403.29:290.210:200.45:198:25Third Quarter3Tue
4Wed3:542.54:423.210:240.311:240.45:198:25Third Quarter4Wed
5Thu4:582.35:413.211:200.55:208:24Third Quarter5Thu
6Fri6:022.26:353.212:240.412:160.65:218:24Waning Crescent6Fri
7Sat6:572.27:243.11:200.41:110.75:218:24Waning Crescent7Sat
8Sun7:462.28:093.12:120.42:040.75:228:24Waning Crescent8Sun
9Mon8:312.38:543.12:590.32:530.75:238:23Waning Crescent9Mon
10Tue9:152.49:363.13:410.33:370.75:238:23New Moon10Tue
11Wed9:582.510:183.04:190.34:160.75:248:22New Moon11Wed
12Thu10:412.610:583.04:550.34:540.75:258:22New Moon12Thu
13Fri11:252.611:392.95:310.35:320.75:258:21New Moon13Fri
14Sat12:102.76:080.36:140.75:268:21Waxing Crescent14Sat
15Sun12:192.812:552.76:460.47:000.75:278:20Waxing Crescent15Sun
16Mon1:012.71:392.87:250.47:490.85:288:20Waxing Crescent16Mon
17Tue1:422.62:202.88:050.58:410.75:298:19Waxing Crescent17Tue
18Wed2:232.43:012.98:460.69:340.75:298:18First Quarter18Wed
19Thu3:072.33:462.99:290.610:300.65:308:18First Quarter19Thu
20Fri4:012.24:383.010:180.711:270.55:318:17First Quarter20Fri
21Sat5:052.25:353.111:120.75:328:16Waxing Gibbous21Sat
22Sun6:052.26:303.312:240.412:100.65:338:15Waxing Gibbous22Sun
23Mon6:592.37:233.51:190.31:090.55:348:15Waxing Gibbous23Mon
24Tue7:512.58:163.62:140.12:080.35:358:14Waxing Gibbous24Tue
25Wed8:432.69:083.73:070.03:060.25:368:13Full Moon25Wed
26Thu9:362.810:003.63:57-0.24:020.05:378:12Full Moon26Thu
27Fri10:303.010:523.54:45-0.24:560.05:378:11Full Moon27Fri
28Sat11:243.111:443.45:33-0.25:520.05:388:10Waning Gibbous28Sat
29Sun12:203.26:21-0.26:510.15:398:09Waning Gibbous29Sun
30Mon12:373.11:173.37:120.07:520.25:408:08Waning Gibbous30Mon
31Tue1:322.82:133.38:050.18:540.35:418:07Third Quarter31Tue
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 9:56 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 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