Tides Today & Tomorrow in Guilford, CT

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently rising in Guilford, CT.
Next low tide (tomorrow) : 5:07 am (-0.2 ft)
Next high tide : in 4h 31m at 10:46 pm (6.2 ft)
Sunset today : 7:55 pm
Sunrise tomorrow : 5:56 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8464445
Common Questions About Tides

Guilford, CT Tides - Sep 1940

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:516.111:116.34:37-0.34:57-0.36:177:24New Moon1Sun
2Mon11:396.45:25-0.55:48-0.56:187:22New Moon2Mon
3Tue12:016.412:286.56:12-0.76:39-0.76:197:20New Moon3Tue
4Wed12:526.41:186.67:01-0.67:31-0.66:207:19Waxing Crescent4Wed
5Thu1:446.22:106.67:51-0.58:25-0.46:217:17Waxing Crescent5Thu
6Fri2:386.03:046.48:43-0.29:22-0.26:227:15Waxing Crescent6Fri
7Sat3:345.74:016.29:400.110:230.16:237:14First Quarter7Sat
8Sun4:345.45:015.910:400.411:250.46:247:12First Quarter8Sun
9Mon5:375.26:055.711:440.76:257:10First Quarter9Mon
10Tue6:435.17:105.612:290.512:480.86:267:09Waxing Gibbous10Tue
11Wed7:475.28:115.51:300.61:500.86:277:07Waxing Gibbous11Wed
12Thu8:455.39:075.62:270.52:470.76:287:05Waxing Gibbous12Thu
13Fri9:365.59:555.63:190.53:380.66:297:03Waxing Gibbous13Fri
14Sat10:215.610:395.74:040.44:240.46:307:02Full Moon14Sat
15Sun11:015.711:195.74:450.35:060.46:317:00Full Moon15Sun
16Mon11:395.711:575.65:230.35:450.36:326:58Full Moon16Mon
17Tue12:155.85:590.46:230.36:336:57Full Moon17Tue
18Wed12:355.612:515.76:340.57:000.46:346:55Full Moon18Wed
19Thu1:135.41:275.77:100.67:380.56:356:53Waning Gibbous19Thu
20Fri1:525.32:045.67:460.88:170.66:366:51Waning Gibbous20Fri
21Sat2:335.22:445.58:250.98:590.86:376:50Waning Gibbous21Sat
22Sun3:165.13:275.49:081.19:460.96:386:48Waning Gibbous22Sun
23Mon4:024.94:145.39:561.210:381.06:396:46Third Quarter23Mon
24Tue4:544.95:085.310:501.311:341.06:406:45Third Quarter24Tue
25Wed5:504.96:085.311:501.26:416:43Third Quarter25Wed
26Thu6:495.07:095.412:330.912:511.06:426:41Waning Crescent26Thu
27Fri7:475.38:095.61:310.61:510.76:436:39Waning Crescent27Fri
28Sat8:435.69:055.92:260.32:490.36:446:38Waning Crescent28Sat
29Sun8:356.08:596.12:190.02:43-0.25:455:36Waning Crescent29Sun
30Mon9:256.49:506.33:09-0.43:36-0.65:465:34New Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8464445)

Common Questions About Guilford, CT Tides

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

Slack tide in Guilford, CT is approximately 1:56 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 Guilford, CT?

Guilford, CT is currently in a spring phase. Tonight's moon is 2% 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 maximum.

What datum are Guilford, 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 Guilford, CT?

Tide predictions for Guilford, 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 Guilford, CT?

Tide data for Guilford, CT is sourced from NOAA Station #8464445. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8464445.

What is the moon phase in Guilford, CT tonight?

Tonight the moon over Guilford, CT is New Moon (2% illuminated). This places Guilford, CT in a spring tide cycle, so tidal ranges are near their weekly maximum 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