Tides Today & Tomorrow in Niantic, CT

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Niantic, CT.
Next low tide (tomorrow) : 1:09 am (0.6 ft)
Next high tide : in 3h 39m at 6:18 pm (2.8 ft)
Sunset today : 7:39 pm
Sunrise tomorrow : 6:04 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8461925
Common Questions About Tides

Niantic, CT Tides - Sep 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:142.812:413.06:340.47:060.46:147:23Waning Gibbous1Fri
2Sat12:552.71:223.07:110.47:510.46:157:21Waning Gibbous2Sat
3Sun1:372.62:042.97:510.58:400.56:167:20Waning Gibbous3Sun
4Mon2:202.52:462.98:360.69:320.56:177:18Waning Gibbous4Mon
5Tue3:052.43:302.99:260.610:250.56:187:16Third Quarter5Tue
6Wed3:552.44:222.910:190.611:210.46:197:15Third Quarter6Wed
7Thu4:532.45:263.011:170.66:207:13Third Quarter7Thu
8Fri5:572.46:293.112:180.412:180.56:217:11Waning Crescent8Fri
9Sat6:572.67:253.21:140.31:190.46:227:10Waning Crescent9Sat
10Sun7:502.88:173.32:080.22:180.36:237:08Waning Crescent10Sun
11Mon8:413.19:073.43:000.03:160.16:247:06Waning Crescent11Mon
12Tue9:313.39:573.43:50-0.14:11-0.16:257:05New Moon12Tue
13Wed10:223.510:473.44:39-0.25:05-0.26:267:03New Moon13Wed
14Thu11:123.611:373.25:27-0.25:57-0.26:277:01New Moon14Thu
15Fri12:043.66:14-0.16:50-0.16:286:59Waxing Crescent15Fri
16Sat12:293.112:573.67:040.07:460.06:296:58Waxing Crescent16Sat
17Sun1:232.91:533.57:570.28:440.16:306:56Waxing Crescent17Sun
18Mon2:202.72:503.38:550.39:430.26:316:54First Quarter18Mon
19Tue3:192.63:483.19:540.510:420.46:326:53First Quarter19Tue
20Wed4:192.54:502.910:550.611:420.56:336:51First Quarter20Wed
21Thu5:232.45:542.811:570.66:346:49First Quarter21Thu
22Fri6:272.56:532.812:390.512:570.66:356:47Waxing Gibbous22Fri
23Sat7:212.67:432.81:320.51:510.66:366:46Waxing Gibbous23Sat
24Sun7:082.77:282.81:190.51:400.65:375:44Waxing Gibbous24Sun
25Mon7:512.88:092.82:020.52:250.55:385:42Waxing Gibbous25Mon
26Tue8:322.98:492.82:410.43:060.45:395:41Full Moon26Tue
27Wed9:123.09:292.83:170.43:440.45:405:39Full Moon27Wed
28Thu9:513.110:072.83:510.44:220.35:415:37Full Moon28Thu
29Fri10:293.110:462.74:250.45:000.35:425:35Full Moon29Fri
30Sat11:063.111:252.74:590.45:400.35:435:34Waning Gibbous30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8461925)

Common Questions About Niantic, CT Tides

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What time does the tide turn (slack tide) in Niantic, CT today?

Slack tide in Niantic, CT is approximately 9:43 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 Niantic, CT?

Niantic, 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 Niantic, 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 Niantic, CT?

Tide predictions for Niantic, 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 Niantic, CT?

Tide data for Niantic, CT is sourced from NOAA Station #8461925. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8461925.

What is the moon phase in Niantic, CT tonight?

Tonight the moon over Niantic, CT is First Quarter (65% illuminated). This places Niantic, 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