Tides Today & Tomorrow in South Norwalk, CT

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in South Norwalk, CT.
Next low tide (tomorrow) : in 4h 45m at 12:31 am (0.7 ft)
Next high tide (tomorrow) : 6:31 am (6.4 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 - Oct 2078

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:527.29:147.52:370.33:020.66:506:35Waning Crescent1Sat
2Sun9:467.410:077.63:330.33:570.46:526:33Waning Crescent2Sun
3Mon10:327.610:527.54:220.24:450.36:536:31Waning Crescent3Mon
4Tue11:127.611:327.45:050.35:270.26:546:30New Moon4Tue
5Wed11:467.75:430.46:050.26:556:28New Moon5Wed
6Thu12:077.312:177.66:180.66:410.26:566:26New Moon6Thu
7Fri12:407.212:487.66:500.77:150.36:576:25New Moon7Fri
8Sat1:137.01:207.57:220.97:500.56:586:23Waxing Crescent8Sat
9Sun1:476.91:557.47:561.18:270.66:596:22Waxing Crescent9Sun
10Mon2:256.72:357.38:331.39:090.87:006:20Waxing Crescent10Mon
11Tue3:076.53:197.19:151.59:571.07:016:18Waxing Crescent11Tue
12Wed3:566.34:106.910:051.710:521.27:026:17First Quarter12Wed
13Thu4:506.15:076.811:051.811:531.27:036:15First Quarter13Thu
14Fri5:516.16:106.712:111.87:046:14First Quarter14Fri
15Sat6:546.37:146.912:531.11:151.57:056:12First Quarter15Sat
16Sun7:536.78:157.11:500.92:141.17:066:11Waxing Gibbous16Sun
17Mon8:467.39:107.52:420.63:090.57:086:09Waxing Gibbous17Mon
18Tue9:347.910:007.83:300.33:59-0.17:096:08Waxing Gibbous18Tue
19Wed10:208.510:488.14:16-0.14:47-0.67:106:06Full Moon19Wed
20Thu11:068.911:368.35:02-0.35:35-1.17:116:05Full Moon20Thu
21Fri11:529.25:47-0.56:22-1.37:126:03Full Moon21Fri
22Sat12:248.312:409.36:34-0.67:11-1.37:136:02Full Moon22Sat
23Sun1:148.21:309.27:23-0.58:02-1.17:146:00Waning Gibbous23Sun
24Mon2:068.02:238.98:15-0.28:57-0.87:165:59Waning Gibbous24Mon
25Tue3:017.73:208.49:120.19:56-0.47:175:58Waning Gibbous25Tue
26Wed4:027.44:237.910:160.511:000.07:185:56Third Quarter26Wed
27Thu5:087.15:317.511:250.77:195:55Third Quarter27Thu
28Fri6:187.06:437.212:060.212:350.87:205:54Third Quarter28Fri
29Sat7:267.17:527.11:100.41:410.77:215:52Waning Crescent29Sat
30Sun8:277.28:527.12:100.42:410.67:225:51Waning Crescent30Sun
31Mon9:197.49:447.13:040.43:350.47:245:50Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8468448)

Common Questions About South Norwalk, CT Tides

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

Slack tide in South Norwalk, CT is approximately 3:31 am — 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