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 06m 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 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:376.66:037.311:571.15:488:10First Quarter1Wed
2Thu6:366.57:007.512:430.912:531.15:498:09First Quarter2Thu
3Fri7:366.67:587.71:410.71:511.05:508:08Waxing Gibbous3Fri
4Sat8:356.98:548.12:370.42:480.75:518:07Waxing Gibbous4Sat
5Sun9:307.39:498.43:320.03:440.45:528:06Waxing Gibbous5Sun
6Mon10:237.710:428.74:23-0.44:38-0.15:538:05Full Moon6Mon
7Tue11:148.211:339.05:13-0.85:30-0.45:548:04Full Moon7Tue
8Wed12:058.66:02-1.16:22-0.85:558:02Full Moon8Wed
9Thu12:259.112:558.96:51-1.27:14-0.95:568:01Full Moon9Thu
10Fri1:179.01:469.07:40-1.28:07-0.95:578:00Waning Gibbous10Fri
11Sat2:108.82:399.08:31-1.09:02-0.85:587:58Waning Gibbous11Sat
12Sun3:048.53:338.89:24-0.710:00-0.65:597:57Waning Gibbous12Sun
13Mon4:018.14:308.510:21-0.311:01-0.36:007:56Third Quarter13Mon
14Tue5:027.65:318.211:210.06:017:54Third Quarter14Tue
15Wed6:077.26:357.912:030.012:230.46:027:53Third Quarter15Wed
16Thu7:147.07:397.71:060.21:250.66:037:52Third Quarter16Thu
17Fri8:196.98:407.62:080.32:250.76:047:50Waning Crescent17Fri
18Sat9:176.99:347.63:050.33:210.86:057:49Waning Crescent18Sat
19Sun10:087.010:217.63:570.34:120.86:067:47Waning Crescent19Sun
20Mon10:517.011:027.54:440.34:570.86:077:46New Moon20Mon
21Tue11:297.111:397.55:250.35:380.76:087:44New Moon21Tue
22Wed12:037.26:010.36:150.76:097:43New Moon22Wed
23Thu12:127.412:347.26:360.46:500.76:107:41New Moon23Thu
24Fri12:457.41:067.37:090.57:250.76:117:40New Moon24Fri
25Sat1:197.41:397.47:410.58:010.76:127:38Waxing Crescent25Sat
26Sun1:567.32:167.58:150.68:390.76:137:37Waxing Crescent26Sun
27Mon2:367.22:567.58:520.89:220.76:147:35Waxing Crescent27Mon
28Tue3:197.03:417.59:340.910:110.86:157:34Waxing Crescent28Tue
29Wed4:086.94:317.510:231.011:060.86:167:32First Quarter29Wed
30Thu5:026.75:267.511:181.16:177:30First Quarter30Thu
31Fri6:016.76:277.612:060.812:201.16:187:29First Quarter31Fri
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