Tides Today & Tomorrow in Guilford, CT

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Guilford, CT.
Next low tide (tomorrow) : 1:13 am (1.2 ft)
Next high tide : in 5h 19m at 6:49 pm (5.1 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 6:06 am
Moon phase : First Quarter (65% illuminated)
Tide Station Location : Station #8464445
Common Questions About Tides

Guilford, CT Tides - May 1926

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:505.82:275.28:11-0.28:220.55:487:46Waning Gibbous1Sat
2Sun2:385.73:175.29:000.09:150.65:477:48Waning Gibbous2Sun
3Mon3:325.64:135.19:560.210:150.75:457:49Third Quarter3Mon
4Tue4:315.55:125.110:560.311:200.75:447:50Third Quarter4Tue
5Wed5:355.46:165.211:580.35:437:51Third Quarter5Wed
6Thu6:425.47:205.412:270.61:000.35:427:52Third Quarter6Thu
7Fri7:475.48:205.71:320.32:000.15:417:53Waning Crescent7Fri
8Sat8:485.59:165.92:340.02:560.05:397:54Waning Crescent8Sat
9Sun9:445.710:076.23:31-0.33:48-0.15:387:55Waning Crescent9Sun
10Mon10:365.710:556.34:24-0.54:37-0.25:377:56New Moon10Mon
11Tue11:255.711:416.35:14-0.65:24-0.15:367:57New Moon11Tue
12Wed12:135.66:01-0.66:100.05:357:58New Moon12Wed
13Thu12:266.21:005.56:47-0.56:550.35:347:59New Moon13Thu
14Fri1:116.01:465.47:32-0.37:410.55:338:00Waxing Crescent14Fri
15Sat1:575.72:335.28:170.08:270.85:328:01Waxing Crescent15Sat
16Sun2:435.53:215.19:030.39:171.05:318:02Waxing Crescent16Sun
17Mon3:325.24:115.09:520.610:091.25:308:03Waxing Crescent17Mon
18Tue4:245.05:024.910:420.811:031.35:298:04First Quarter18Tue
19Wed5:184.85:554.911:341.011:591.35:288:05First Quarter19Wed
20Thu6:144.76:484.912:261.15:278:06First Quarter20Thu
21Fri7:114.77:405.112:551.21:161.05:268:07First Quarter21Fri
22Sat8:054.88:285.21:481.02:051.05:268:08Waxing Gibbous22Sat
23Sun8:554.99:135.52:380.72:510.95:258:09Waxing Gibbous23Sun
24Mon9:415.09:555.63:250.43:360.75:248:09Waxing Gibbous24Mon
25Tue10:255.110:355.84:100.24:180.65:238:10Waxing Gibbous25Tue
26Wed11:075.311:166.04:54-0.15:010.55:238:11Full Moon26Wed
27Thu11:505.311:596.05:37-0.25:440.45:228:12Full Moon27Thu
28Fri12:355.46:21-0.36:290.45:218:13Full Moon28Fri
29Sat12:446.11:215.47:06-0.37:170.45:218:14Waning Gibbous29Sat
30Sun1:326.02:115.47:55-0.38:080.45:208:15Waning Gibbous30Sun
31Mon2:245.93:045.48:47-0.29:040.55:208:15Waning Gibbous31Mon
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 10:01 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 transitional phase. Tonight's moon is 65% 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 shifting between spring and neap.

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 (65% illuminated). This places Guilford, CT in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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