Tides Today & Tomorrow in South Norwalk, CT

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in South Norwalk, CT.
Next low tide (tomorrow) : 12:31 am (0.7 ft)
Next high tide : in 1h 07m at 5:56 pm (7.4 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:39 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8468448
Common Questions About Tides

South Norwalk, CT Tides - Aug 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:557.16:228.212:110.45:508:09Third Quarter1Mon
2Tue7:027.07:288.21:020.01:150.55:518:08Waning Crescent2Tue
3Wed8:117.08:328.22:070.02:190.65:528:07Waning Crescent3Wed
4Thu9:157.19:348.23:09-0.13:210.55:538:06Waning Crescent4Thu
5Fri10:147.210:308.34:07-0.24:200.45:548:05Waning Crescent5Fri
6Sat11:077.411:218.25:00-0.35:130.35:558:04New Moon6Sat
7Sun11:557.55:49-0.36:030.35:568:02New Moon7Sun
8Mon12:088.112:397.56:33-0.36:490.35:578:01New Moon8Mon
9Tue12:517.91:207.57:15-0.17:320.45:588:00New Moon9Tue
10Wed1:337.71:597.57:540.18:140.55:597:58Waxing Crescent10Wed
11Thu2:137.42:377.58:330.48:570.66:007:57Waxing Crescent11Thu
12Fri2:547.13:167.49:130.79:420.86:017:56Waxing Crescent12Fri
13Sat3:376.83:597.29:561.010:311.06:027:54First Quarter13Sat
14Sun4:246.54:457.110:421.311:231.16:037:53First Quarter14Sun
15Mon5:156.25:366.911:331.56:047:52First Quarter15Mon
16Tue6:126.06:326.912:201.212:291.76:057:50First Quarter16Tue
17Wed7:145.97:316.91:181.31:261.86:067:49First Quarter17Wed
18Thu8:146.08:287.02:151.22:231.76:077:47Waxing Gibbous18Thu
19Fri9:096.29:197.23:091.03:161.56:087:46Waxing Gibbous19Fri
20Sat9:576.510:077.53:570.74:051.26:097:44Waxing Gibbous20Sat
21Sun10:406.910:517.84:410.44:510.86:107:43Full Moon21Sun
22Mon11:217.411:358.05:220.15:350.46:117:41Full Moon22Mon
23Tue12:027.86:02-0.16:180.16:127:40Full Moon23Tue
24Wed12:188.212:448.26:42-0.37:03-0.36:137:38Full Moon24Wed
25Thu1:048.31:288.67:23-0.47:50-0.56:147:37Waning Gibbous25Thu
26Fri1:518.22:158.78:07-0.48:40-0.56:157:35Waning Gibbous26Fri
27Sat2:418.13:058.78:56-0.29:34-0.46:167:34Waning Gibbous27Sat
28Sun3:357.83:598.69:490.010:34-0.26:177:32Third Quarter28Sun
29Mon4:337.44:598.310:480.311:380.06:187:30Third Quarter29Mon
30Tue5:387.16:058.111:540.66:197:29Third Quarter30Tue
31Wed6:496.97:157.912:450.21:020.76:207:27Third Quarter31Wed
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 9:13 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 neap phase. Tonight's moon is 52% 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 near their weekly minimum.

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 (52% illuminated). This places South Norwalk, CT in a neap tide cycle, so tidal ranges are near their weekly minimum 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