Tides Today & Tomorrow in South Norwalk, CT

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in South Norwalk, CT.
Next low tide : 10:53 pm (0.7 ft)
Next high tide : in 4h 17m at 4:18 pm (7.5 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8468448
Common Questions About Tides

South Norwalk, CT Tides - Nov 1935

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:576.92:117.58:041.08:450.46:234:50Waxing Crescent1Fri
2Sat2:506.93:097.49:041.09:440.46:254:49First Quarter2Sat
3Sun3:497.04:127.310:110.910:460.46:264:48First Quarter3Sun
4Mon4:527.25:197.211:200.711:470.36:274:47First Quarter4Mon
5Tue5:567.66:267.312:250.36:284:45Waxing Gibbous5Tue
6Wed6:578.07:307.512:470.11:27-0.26:294:44Waxing Gibbous6Wed
7Thu7:548.48:287.71:44-0.12:24-0.76:314:43Waxing Gibbous7Thu
8Fri8:478.89:227.82:38-0.23:18-1.06:324:42Waxing Gibbous8Fri
9Sat9:379.010:137.93:30-0.44:09-1.26:334:41Full Moon9Sat
10Sun10:269.011:027.94:20-0.44:58-1.26:344:40Full Moon10Sun
11Mon11:148.811:507.75:09-0.35:46-1.16:354:39Full Moon11Mon
12Tue12:028.65:57-0.16:34-0.86:374:38Waning Gibbous12Tue
13Wed12:387.512:508.26:460.17:22-0.56:384:37Waning Gibbous13Wed
14Thu1:277.21:397.77:370.58:12-0.16:394:36Waning Gibbous14Thu
15Fri2:187.02:317.38:300.89:040.36:404:35Waning Gibbous15Fri
16Sat3:106.83:266.99:271.09:580.66:414:34Third Quarter16Sat
17Sun4:066.74:246.610:271.110:540.86:434:34Third Quarter17Sun
18Mon5:036.65:256.311:271.111:481.06:444:33Third Quarter18Mon
19Tue5:596.76:256.212:241.06:454:32Third Quarter19Tue
20Wed6:516.87:216.212:401.01:180.86:464:31Waning Crescent20Wed
21Thu7:387.08:106.31:301.02:070.66:474:31Waning Crescent21Thu
22Fri8:207.18:536.42:151.02:520.46:484:30Waning Crescent22Fri
23Sat8:597.39:326.52:581.03:330.36:504:29Waning Crescent23Sat
24Sun9:367.410:106.53:371.04:130.16:514:29New Moon24Sun
25Mon10:137.610:476.64:150.94:500.06:524:28New Moon25Mon
26Tue10:517.711:256.84:520.85:28-0.16:534:28New Moon26Tue
27Wed11:327.85:310.76:07-0.26:544:27New Moon27Wed
28Thu12:076.912:167.86:130.66:49-0.26:554:27Waxing Crescent28Thu
29Fri12:527.01:037.87:000.57:35-0.26:564:27Waxing Crescent29Fri
30Sat1:407.21:557.67:530.58:25-0.26:574:26Waxing Crescent30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8468448)

Common Questions About South Norwalk, CT Tides

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

Slack tide in South Norwalk, CT is approximately 7:35 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 South Norwalk, CT?

South Norwalk, 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 South Norwalk, 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 South Norwalk, CT?

Tide predictions for South Norwalk, 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 South Norwalk, CT?

Tide data for South Norwalk, CT is sourced from NOAA Station #8468448. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8468448.

What is the moon phase in South Norwalk, CT tonight?

Tonight the moon over South Norwalk, CT is First Quarter (36% illuminated). This places South Norwalk, 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