Tides Today & Tomorrow in Niantic, CT

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Niantic, CT.
Next low tide : 10:19 pm (0.5 ft)
Next high tide : in 5h 48m at 3:22 pm (3.1 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:01 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8461925
Common Questions About Tides

Niantic, CT Tides - Jan 1947

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:412.44:502.111:180.211:200.17:144:29First Quarter1Wed
2Thu5:352.65:502.012:170.07:144:30Waxing Gibbous2Thu
3Fri6:262.96:452.112:120.01:14-0.27:144:31Waxing Gibbous3Fri
4Sat7:153.17:372.11:05-0.12:10-0.37:144:32Waxing Gibbous4Sat
5Sun8:063.28:292.22:01-0.23:04-0.57:144:33Full Moon5Sun
6Mon8:583.39:212.32:56-0.33:56-0.67:144:34Full Moon6Mon
7Tue9:513.310:142.43:51-0.34:46-0.67:144:35Full Moon7Tue
8Wed10:443.311:082.44:44-0.45:36-0.57:144:36Full Moon8Wed
9Thu11:383.15:38-0.36:27-0.57:144:37Waning Gibbous9Thu
10Fri12:052.412:332.96:36-0.27:21-0.47:144:38Waning Gibbous10Fri
11Sat1:042.41:282.67:38-0.18:15-0.27:144:39Waning Gibbous11Sat
12Sun2:022.42:242.38:410.09:08-0.17:134:40Third Quarter12Sun
13Mon3:002.43:202.19:440.110:020.07:134:41Third Quarter13Mon
14Tue4:002.44:221.910:480.210:560.17:134:42Third Quarter14Tue
15Wed5:012.45:251.811:500.211:490.27:124:43Third Quarter15Wed
16Thu5:572.56:221.712:470.17:124:44Waning Crescent16Thu
17Fri6:472.57:111.712:400.31:380.17:114:45Waning Crescent17Fri
18Sat7:322.67:561.81:290.32:240.07:114:47Waning Crescent18Sat
19Sun8:162.68:391.92:160.23:050.07:104:48Waning Crescent19Sun
20Mon8:592.69:212.02:590.23:43-0.17:104:49New Moon20Mon
21Tue9:402.610:022.03:380.14:18-0.17:094:50New Moon21Tue
22Wed10:202.610:432.14:150.14:54-0.17:084:51New Moon22Wed
23Thu10:582.611:242.14:530.15:30-0.17:084:53New Moon23Thu
24Fri11:352.65:320.16:08-0.17:074:54Waxing Crescent24Fri
25Sat12:062.112:132.56:150.16:49-0.17:064:55Waxing Crescent25Sat
26Sun12:482.212:522.47:040.17:32-0.17:054:56Waxing Crescent26Sun
27Mon1:312.21:322.37:570.18:160.07:054:57Waxing Crescent27Mon
28Tue2:142.32:172.18:530.19:030.07:044:59First Quarter28Tue
29Wed3:012.43:102.09:520.19:530.07:035:00First Quarter29Wed
30Thu3:572.54:151.910:540.010:490.17:025:01First Quarter30Thu
31Fri5:012.65:241.911:55-0.111:480.07:015:02First Quarter31Fri
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 6:50 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 36% 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 (36% 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