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 1h 07m 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 - Jan 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:442.41:002.47:140.17:400.07:144:29Waxing Crescent1Sun
2Mon1:402.41:532.28:150.28:310.17:144:30First Quarter2Mon
3Tue2:362.42:491.99:170.39:210.37:144:31First Quarter3Tue
4Wed3:342.43:501.810:180.310:120.47:144:32First Quarter4Wed
5Thu4:322.54:511.711:150.311:030.47:144:33First Quarter5Thu
6Fri5:252.55:441.712:070.27:144:34Waxing Gibbous6Fri
7Sat6:122.66:311.812:540.27:144:35Waxing Gibbous7Sat
8Sun6:572.67:151.912:390.41:380.17:144:36Waxing Gibbous8Sun
9Mon7:412.67:582.01:240.32:180.07:144:37Waxing Gibbous9Mon
10Tue8:232.78:402.02:060.32:55-0.17:134:38Full Moon10Tue
11Wed9:022.79:212.12:460.23:32-0.27:134:39Full Moon11Wed
12Thu9:402.710:012.23:240.14:09-0.27:134:40Full Moon12Thu
13Fri10:172.710:422.24:040.14:48-0.27:134:41Full Moon13Fri
14Sat10:532.611:252.34:470.15:29-0.27:124:42Waning Gibbous14Sat
15Sun11:312.55:350.16:12-0.27:124:43Waning Gibbous15Sun
16Mon12:092.312:132.46:290.16:57-0.27:114:44Waning Gibbous16Mon
17Tue12:552.412:582.27:270.17:44-0.17:114:45Third Quarter17Tue
18Wed1:432.51:502.18:270.18:340.07:104:47Third Quarter18Wed
19Thu2:372.62:521.99:290.09:290.07:104:48Third Quarter19Thu
20Fri3:402.74:041.810:320.010:290.07:094:49Third Quarter20Fri
21Sat4:462.85:111.911:34-0.111:300.07:094:50Waning Crescent21Sat
22Sun5:452.96:102.012:33-0.37:084:51Waning Crescent22Sun
23Mon6:413.07:042.112:31-0.11:29-0.47:074:53Waning Crescent23Mon
24Tue7:353.17:572.21:29-0.32:22-0.57:064:54New Moon24Tue
25Wed8:263.18:482.32:25-0.43:11-0.57:064:55New Moon25Wed
26Thu9:153.09:382.43:17-0.43:56-0.57:054:56New Moon26Thu
27Fri10:022.910:282.54:06-0.44:41-0.57:044:57New Moon27Fri
28Sat10:492.711:192.54:57-0.35:26-0.37:034:59Waxing Crescent28Sat
29Sun11:372.55:50-0.16:12-0.27:025:00Waxing Crescent29Sun
30Mon12:102.512:262.26:450.06:580.07:015:01Waxing Crescent30Mon
31Tue1:012.51:172.07:410.17:450.27:005:02First 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 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