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 21m 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 - Jun 1975

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:232.54:032.79:550.610:350.85:178:14Third Quarter1Sun
2Mon4:192.44:582.810:410.711:290.85:168:15Third Quarter2Mon
3Tue5:172.35:512.811:260.75:168:16Third Quarter3Tue
4Wed6:102.36:383.012:210.712:110.75:168:16Waning Crescent4Wed
5Thu6:592.37:213.11:090.612:550.75:158:17Waning Crescent5Thu
6Fri7:442.38:033.11:550.41:400.75:158:18Waning Crescent6Fri
7Sat8:272.48:443.22:390.32:260.65:158:18Waning Crescent7Sat
8Sun9:102.59:243.33:230.13:120.55:148:19New Moon8Sun
9Mon9:522.510:053.34:060.03:570.45:148:20New Moon9Mon
10Tue10:352.610:473.34:48-0.14:430.45:148:20New Moon10Tue
11Wed11:202.711:323.35:33-0.15:310.45:148:21Waxing Crescent11Wed
12Thu12:102.86:20-0.16:250.45:148:21Waxing Crescent12Thu
13Fri12:213.21:032.87:11-0.17:230.45:148:22Waxing Crescent13Fri
14Sat1:153.11:582.98:030.08:250.45:148:22Waxing Crescent14Sat
15Sun2:103.02:543.08:560.09:270.45:148:23First Quarter15Sun
16Mon3:072.83:523.19:490.110:300.45:148:23First Quarter16Mon
17Tue4:092.64:543.210:450.211:330.35:148:23First Quarter17Tue
18Wed5:152.55:533.311:410.25:148:24Waxing Gibbous18Wed
19Thu6:172.56:473.412:340.212:370.35:148:24Waxing Gibbous19Thu
20Fri7:122.57:383.41:320.11:330.35:148:24Waxing Gibbous20Fri
21Sat8:052.58:263.42:270.12:280.35:148:25Waxing Gibbous21Sat
22Sun8:552.69:143.43:180.03:200.35:158:25Full Moon22Sun
23Mon9:432.610:003.34:050.04:090.45:158:25Full Moon23Mon
24Tue10:302.710:463.24:490.04:550.45:158:25Full Moon24Tue
25Wed11:172.711:323.15:310.15:400.55:158:25Waning Gibbous25Wed
26Thu12:062.76:140.26:270.65:168:25Waning Gibbous26Thu
27Fri12:193.012:552.76:580.37:170.75:168:25Waning Gibbous27Fri
28Sat1:072.81:452.87:410.48:080.75:178:25Waning Gibbous28Sat
29Sun1:552.72:342.88:250.59:000.85:178:25Third Quarter29Sun
30Mon2:442.53:242.89:070.69:530.85:178:25Third Quarter30Mon
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