Tides Today & Tomorrow in Guilford, CT

TIDE TIMES for Friday, August 21, 2026
The tide is currently rising in Guilford, CT.
Next low tide : 12:25 pm (1.6 ft)
Next high tide : in 8m at 6:30 am (4.5 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 - Jan 1927

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:505.49:234.72:290.43:11-0.27:164:31Waning Crescent1Sat
2Sun9:345.610:074.93:150.23:56-0.57:164:32New Moon2Sun
3Mon10:195.710:525.04:010.04:41-0.67:164:33New Moon3Mon
4Tue11:055.811:385.14:47-0.25:26-0.87:164:34New Moon4Tue
5Wed11:525.95:35-0.36:13-0.87:164:35Waxing Crescent5Wed
6Thu12:265.212:435.86:25-0.37:02-0.87:164:36Waxing Crescent6Thu
7Fri1:175.31:355.77:18-0.37:53-0.77:164:37Waxing Crescent7Fri
8Sat2:105.32:305.58:15-0.28:46-0.67:164:38Waxing Crescent8Sat
9Sun3:055.33:285.39:16-0.19:42-0.47:164:39First Quarter9Sun
10Mon4:035.34:295.010:19-0.110:40-0.27:164:40First Quarter10Mon
11Tue5:035.45:324.811:240.011:39-0.17:154:41First Quarter11Tue
12Wed6:055.46:364.712:27-0.17:154:42Waxing Gibbous12Wed
13Thu7:055.57:384.712:380.01:28-0.27:154:43Waxing Gibbous13Thu
14Fri8:015.58:344.81:360.02:24-0.47:144:44Waxing Gibbous14Fri
15Sat8:545.69:254.92:300.03:16-0.47:144:45Waxing Gibbous15Sat
16Sun9:425.610:134.93:210.04:03-0.57:144:46Full Moon16Sun
17Mon10:275.510:574.94:080.04:47-0.47:134:47Full Moon17Mon
18Tue11:105.411:394.94:530.05:29-0.47:134:48Full Moon18Tue
19Wed11:525.35:350.16:08-0.27:124:50Full Moon19Wed
20Thu12:214.912:345.16:170.26:47-0.17:124:51Waning Gibbous20Thu
21Fri1:024.81:155.06:590.37:260.17:114:52Waning Gibbous21Fri
22Sat1:444.81:584.87:420.48:060.27:104:53Waning Gibbous22Sat
23Sun2:264.72:424.68:280.58:480.47:104:54Waning Gibbous23Sun
24Mon3:104.73:304.49:160.69:330.67:094:56Third Quarter24Mon
25Tue3:564.74:214.310:080.710:220.77:084:57Third Quarter25Tue
26Wed4:464.75:164.211:030.711:140.87:074:58Third Quarter26Wed
27Thu5:384.76:134.211:590.67:074:59Third Quarter27Thu
28Fri6:334.87:104.312:090.812:550.47:065:01Waning Crescent28Fri
29Sat7:275.08:034.41:030.61:490.17:055:02Waning Crescent29Sat
30Sun8:195.38:534.71:570.42:41-0.27:045:03Waning Crescent30Sun
31Mon9:095.59:414.92:480.13:30-0.57:035:04New Moon31Mon
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 9:27 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 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