Tides Today & Tomorrow in New London, CT

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in New London, CT.
Next low tide : in 1h 03m at 10:57 pm (0.6 ft)
Next high tide (tomorrow) : 4:31 am (2.1 ft)
Sunset today : 8:16 pm
Sunrise tomorrow : 5:33 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Jul 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:162.47:433.11:390.31:380.65:188:25Waning Crescent1Sat
2Sun8:022.48:263.12:290.32:260.65:198:25Waning Crescent2Sun
3Mon8:472.59:093.13:140.33:110.65:198:25New Moon3Mon
4Tue9:312.59:503.13:540.23:520.65:208:25New Moon4Tue
5Wed10:152.610:323.14:310.24:310.65:208:24New Moon5Wed
6Thu10:582.611:133.05:080.25:080.65:218:24New Moon6Thu
7Fri11:432.711:552.95:450.25:480.75:228:24Waxing Crescent7Fri
8Sat12:282.76:240.36:310.75:228:23Waxing Crescent8Sat
9Sun12:382.81:152.77:050.37:190.75:238:23Waxing Crescent9Sun
10Mon1:212.71:592.77:480.48:090.75:248:23Waxing Crescent10Mon
11Tue2:032.62:432.88:320.49:010.75:248:22First Quarter11Tue
12Wed2:462.53:282.89:170.59:550.75:258:22First Quarter12Wed
13Thu3:332.44:172.910:040.510:510.65:268:21First Quarter13Thu
14Fri4:312.45:103.010:540.511:480.45:278:21First Quarter14Fri
15Sat5:322.46:033.211:480.55:278:20Waxing Gibbous15Sat
16Sun6:282.56:543.412:440.312:430.45:288:20Waxing Gibbous16Sun
17Mon7:202.67:443.61:390.11:390.25:298:19Waxing Gibbous17Mon
18Tue8:122.78:363.72:33-0.12:360.15:308:18Full Moon18Tue
19Wed9:042.99:283.73:26-0.23:320.05:318:17Full Moon19Wed
20Thu9:583.010:203.74:16-0.34:26-0.15:328:17Full Moon20Thu
21Fri10:523.111:133.65:05-0.45:20-0.15:328:16Full Moon21Fri
22Sat11:473.25:55-0.36:160.05:338:15Waning Gibbous22Sat
23Sun12:073.412:443.26:47-0.27:160.15:348:14Waning Gibbous23Sun
24Mon1:033.21:423.27:41-0.18:170.25:358:13Waning Gibbous24Mon
25Tue1:592.92:393.28:360.19:180.35:368:13Third Quarter25Tue
26Wed2:552.73:373.19:310.310:190.45:378:12Third Quarter26Wed
27Thu3:542.54:383.010:270.511:200.55:388:11Third Quarter27Thu
28Fri4:572.45:383.011:240.65:398:10Third Quarter28Fri
29Sat5:572.36:323.012:180.512:200.75:408:09Waning Crescent29Sat
30Sun6:502.37:203.01:120.51:120.75:418:08Waning Crescent30Sun
31Mon7:382.48:043.02:010.42:020.75:428:07Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8461490)

Common Questions About New London, CT Tides

Show All
What time does the tide turn (slack tide) in New London, CT today?

Slack tide in New London, CT is approximately 1:44 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 neap phase. Tonight's moon is 52% 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 minimum.

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 First Quarter (52% illuminated). This places New London, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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