Tides Today & Tomorrow in Norwich, Thames River, CT

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Norwich, Thames River, CT.
Next low tide : 9:41 pm (0.7 ft)
Next high tide : in 5h 06m at 2:54 pm (3.6 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8461392
Common Questions About Tides

Norwich, Thames River, CT Tides - Apr 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:313.47:553.71:34-0.31:57-0.35:326:12Waning Crescent1Mon
2Tue8:203.48:433.92:30-0.52:45-0.45:306:13New Moon2Tue
3Wed9:093.49:314.13:22-0.73:31-0.45:286:14New Moon3Wed
4Thu9:583.310:204.04:12-0.74:17-0.25:276:15New Moon4Thu
5Fri10:483.111:103.95:02-0.65:050.05:256:16Waxing Crescent5Fri
6Sat11:403.05:54-0.45:560.25:236:17Waxing Crescent6Sat
7Sun12:033.712:342.86:49-0.26:530.45:226:19Waxing Crescent7Sun
8Mon1:003.41:292.77:450.17:530.65:206:20Waxing Crescent8Mon
9Tue1:583.22:262.68:410.38:550.75:196:21First Quarter9Tue
10Wed3:003.03:262.69:390.59:580.85:176:22First Quarter10Wed
11Thu4:052.84:292.710:350.610:590.85:156:23First Quarter11Thu
12Fri5:082.85:262.811:260.611:540.75:146:24First Quarter12Fri
13Sat6:012.86:153.012:130.65:126:25Waxing Gibbous13Sat
14Sun6:462.86:593.212:440.612:550.65:106:26Waxing Gibbous14Sun
15Mon7:272.87:403.31:290.51:340.55:096:27Waxing Gibbous15Mon
16Tue8:082.88:193.52:100.32:110.55:076:28Waxing Gibbous16Tue
17Wed8:472.88:573.62:490.22:470.55:066:29Full Moon17Wed
18Thu9:262.89:343.63:270.13:230.55:046:30Full Moon18Thu
19Fri10:042.810:093.64:050.04:000.55:036:31Full Moon19Fri
20Sat10:432.810:463.64:440.04:390.55:016:33Full Moon20Sat
21Sun11:242.811:273.55:280.05:220.65:006:34Waning Gibbous21Sun
22Mon12:092.76:170.16:130.74:586:35Waning Gibbous22Mon
23Tue12:153.512:592.77:100.27:110.74:576:36Waning Gibbous23Tue
24Wed1:103.41:532.78:050.28:120.74:556:37Third Quarter24Wed
25Thu2:083.32:532.89:010.39:150.64:546:38Third Quarter25Thu
26Fri3:123.33:582.99:570.210:200.54:526:39Third Quarter26Fri
27Sat4:203.25:013.210:530.211:240.34:516:40Third Quarter27Sat
28Sun6:233.26:573.512:460.15:507:41Waning Crescent28Sun
29Mon7:183.27:473.81:240.11:380.15:487:42Waning Crescent29Mon
30Tue8:103.28:354.02:22-0.12:290.05:477:43Waning Crescent30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8461392)

Common Questions About Norwich, Thames River, CT Tides

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What time does the tide turn (slack tide) in Norwich, Thames River, CT today?

Slack tide in Norwich, Thames River, CT is approximately 6:17 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 Norwich, Thames River, CT?

Norwich, Thames River, 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 Norwich, Thames River, 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 Norwich, Thames River, CT?

Tide predictions for Norwich, Thames River, 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 Norwich, Thames River, CT?

Tide data for Norwich, Thames River, CT is sourced from NOAA Station #8461392. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8461392.

What is the moon phase in Norwich, Thames River, CT tonight?

Tonight the moon over Norwich, Thames River, CT is First Quarter (36% illuminated). This places Norwich, Thames River, 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