Tides Today & Tomorrow in Guilford, CT

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Guilford, CT.
Next low tide (tomorrow) : 12:17 am (1.2 ft)
Next high tide : in 1h 44m at 5:51 pm (5.2 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 6:05 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8464445
Common Questions About Tides

Guilford, CT Tides - Jan 1928

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:105.35:394.811:300.111:45-0.17:164:31First Quarter1Sun
2Mon6:105.56:424.812:33-0.17:164:32Waxing Gibbous2Mon
3Tue7:095.67:444.912:44-0.11:34-0.37:164:33Waxing Gibbous3Tue
4Wed8:065.88:415.01:42-0.22:32-0.67:164:34Waxing Gibbous4Wed
5Thu9:015.99:365.12:38-0.23:26-0.77:164:34Full Moon5Thu
6Fri9:535.910:275.13:32-0.34:18-0.87:164:35Full Moon6Fri
7Sat10:445.911:175.14:24-0.35:07-0.87:164:36Full Moon7Sat
8Sun11:335.75:15-0.25:55-0.67:164:37Full Moon8Sun
9Mon12:065.112:225.56:04-0.16:42-0.47:164:38Waning Gibbous9Mon
10Tue12:555.01:115.36:530.17:28-0.27:164:39Waning Gibbous10Tue
11Wed1:434.91:595.07:430.38:130.07:154:40Waning Gibbous11Wed
12Thu2:324.82:494.88:340.59:000.37:154:41Waning Gibbous12Thu
13Fri3:204.83:404.59:270.69:480.57:154:43Third Quarter13Fri
14Sat4:104.74:334.310:220.710:380.77:154:44Third Quarter14Sat
15Sun5:024.75:294.211:170.711:290.87:144:45Third Quarter15Sun
16Mon5:544.76:264.112:120.67:144:46Third Quarter16Mon
17Tue6:474.87:214.212:210.81:050.57:134:47Waning Crescent17Tue
18Wed7:374.98:114.31:120.81:560.37:134:48Waning Crescent18Wed
19Thu8:245.08:584.52:010.72:430.17:124:49Waning Crescent19Thu
20Fri9:095.29:414.62:480.53:27-0.17:124:51Waning Crescent20Fri
21Sat9:515.310:224.73:320.34:09-0.37:114:52New Moon21Sat
22Sun10:335.511:034.94:150.14:51-0.47:104:53New Moon22Sun
23Mon11:155.611:445.04:58-0.15:32-0.67:104:54New Moon23Mon
24Tue11:585.65:42-0.26:14-0.67:094:55Waxing Crescent24Tue
25Wed12:285.112:445.66:28-0.36:57-0.77:084:57Waxing Crescent25Wed
26Thu1:135.21:315.57:16-0.37:43-0.67:084:58Waxing Crescent26Thu
27Fri2:015.32:225.38:09-0.38:32-0.57:074:59Waxing Crescent27Fri
28Sat2:525.43:165.19:05-0.29:24-0.37:065:00First Quarter28Sat
29Sun3:465.44:154.810:07-0.110:22-0.17:055:02First Quarter29Sun
30Mon4:455.35:194.611:110.011:230.17:045:03First Quarter30Mon
31Tue5:485.36:254.612:160.07:035:04Waxing Gibbous31Tue
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 9:04 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 Guilford, CT?

Guilford, CT is currently in a neap phase. Tonight's moon is 55% 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 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 First Quarter (55% illuminated). This places Guilford, 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