Tides Today & Tomorrow in New London, CT

TIDE TIMES for Friday, August 21, 2026
The tide is currently falling in New London, CT.
Next low tide (tomorrow) : in 2h 57m at 12:12 am (0.7 ft)
Next high tide (tomorrow) : 6:01 am (2.2 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:03 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8461490
Common Questions About Tides

New London, CT Tides - Jul 1936

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:512.28:063.12:010.51:470.85:188:25Waxing Gibbous1Wed
2Thu8:362.38:493.22:450.42:340.75:198:25Waxing Gibbous2Thu
3Fri9:192.49:303.23:270.33:200.65:198:25Full Moon3Fri
4Sat10:012.510:113.34:080.24:040.55:208:25Full Moon4Sat
5Sun10:432.610:513.34:480.14:490.45:208:24Full Moon5Sun
6Mon11:262.711:333.25:300.05:360.45:218:24Waning Gibbous6Mon
7Tue12:132.86:130.06:280.45:228:24Waning Gibbous7Tue
8Wed12:183.11:022.97:000.07:250.45:228:23Waning Gibbous8Wed
9Thu1:063.01:523.07:480.18:240.45:238:23Waning Gibbous9Thu
10Fri1:582.82:443.18:380.19:240.45:248:23Third Quarter10Fri
11Sat2:522.63:403.29:300.210:260.35:248:22Third Quarter11Sat
12Sun3:532.54:423.310:260.311:280.35:258:22Third Quarter12Sun
13Mon5:002.45:443.311:240.45:268:21Waning Crescent13Mon
14Tue6:042.46:413.412:280.212:240.45:278:21Waning Crescent14Tue
15Wed7:032.47:353.41:260.11:240.45:278:20Waning Crescent15Wed
16Thu7:562.58:263.42:220.12:220.35:288:19Waning Crescent16Thu
17Fri8:482.69:153.43:140.03:170.35:298:19New Moon17Fri
18Sat9:382.710:033.34:020.04:070.35:308:18New Moon18Sat
19Sun10:262.810:483.24:460.04:540.35:318:17New Moon19Sun
20Mon11:142.911:333.15:290.15:410.45:328:17Waxing Crescent20Mon
21Tue12:022.96:110.26:290.55:328:16Waxing Crescent21Tue
22Wed12:192.912:502.96:540.37:200.65:338:15Waxing Crescent22Wed
23Thu1:072.71:392.97:370.48:130.75:348:14Waxing Crescent23Thu
24Fri1:562.52:282.98:210.69:050.75:358:13First Quarter24Fri
25Sat2:462.43:172.99:040.79:580.85:368:12First Quarter25Sat
26Sun3:402.24:112.99:500.810:520.85:378:11First Quarter26Sun
27Mon4:392.15:082.810:400.911:440.75:388:11First Quarter27Mon
28Tue5:392.16:032.911:320.95:398:10Waxing Gibbous28Tue
29Wed6:322.26:523.012:350.712:240.95:408:09Waxing Gibbous29Wed
30Thu7:202.37:383.11:230.61:150.85:418:07Waxing Gibbous30Thu
31Fri8:042.48:213.22:100.42:050.75:428:06Waxing Gibbous31Fri
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 3:06 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 transitional phase. Tonight's moon is 65% 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 First Quarter (65% 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