Tides Today & Tomorrow in Mystic, CT

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently rising in Mystic, CT.
Next low tide : 9:03 pm (0.6 ft)
Next high tide : in 9m at 2:14 pm (3.0 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 6:00 am
Moon phase : First Quarter (36% illuminated)
Tide Station Location : Station #8460751
Common Questions About Tides

Mystic, CT Tides - Jan 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:572.36:100.16:330.17:144:29Waning Gibbous1Fri
2Sat12:242.612:522.17:080.27:250.37:144:30Third Quarter2Sat
3Sun1:212.51:501.98:070.38:170.47:144:30Third Quarter3Sun
4Mon2:192.52:501.89:060.39:100.57:144:31Third Quarter4Mon
5Tue3:182.43:491.810:010.310:020.57:144:32Third Quarter5Tue
6Wed4:152.44:441.810:530.310:530.57:144:33Waning Crescent6Wed
7Thu5:072.45:341.911:410.211:430.47:134:34Waning Crescent7Thu
8Fri5:552.56:202.112:250.17:134:35Waning Crescent8Fri
9Sat6:392.57:022.212:300.31:070.07:134:36Waning Crescent9Sat
10Sun7:202.67:432.31:150.21:47-0.17:134:37Waning Crescent10Sun
11Mon7:582.78:232.41:570.12:28-0.27:134:38New Moon11Mon
12Tue8:362.79:012.42:380.13:09-0.37:124:39New Moon12Tue
13Wed9:132.79:392.43:200.03:50-0.37:124:40New Moon13Wed
14Thu9:522.710:182.54:040.04:33-0.37:124:42Waxing Crescent14Thu
15Fri10:342.611:002.54:520.05:17-0.27:114:43Waxing Crescent15Fri
16Sat11:202.411:462.55:460.06:05-0.17:114:44Waxing Crescent16Sat
17Sun12:132.36:440.06:560.17:104:45Waxing Crescent17Sun
18Mon12:402.61:132.17:450.07:500.17:104:46First Quarter18Mon
19Tue1:412.62:192.08:470.08:480.27:094:47First Quarter19Tue
20Wed2:472.73:252.09:49-0.19:480.27:094:48First Quarter20Wed
21Thu3:532.74:282.010:48-0.210:470.17:084:50Waxing Gibbous21Thu
22Fri4:542.85:252.211:44-0.311:460.07:074:51Waxing Gibbous22Fri
23Sat5:502.96:182.312:38-0.47:074:52Waxing Gibbous23Sat
24Sun6:423.07:072.512:43-0.11:28-0.57:064:53Waxing Gibbous24Sun
25Mon7:303.07:552.61:36-0.22:16-0.67:054:55Full Moon25Mon
26Tue8:172.98:412.72:27-0.33:01-0.57:044:56Full Moon26Tue
27Wed9:042.89:272.83:15-0.33:44-0.47:044:57Full Moon27Wed
28Thu9:512.610:142.84:03-0.24:27-0.37:034:58Waning Gibbous28Thu
29Fri10:382.411:022.74:52-0.15:11-0.17:025:00Waning Gibbous29Fri
30Sat11:272.211:522.65:430.05:550.17:015:01Waning Gibbous30Sat
31Sun12:182.06:350.16:410.37:005:02Waning Gibbous31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8460751)

Common Questions About Mystic, CT Tides

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

Slack tide in Mystic, CT is approximately 5:38 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 Mystic, CT?

Mystic, CT is currently in a transitional phase. Tonight's moon is 36% 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 Mystic, 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 Mystic, CT?

Tide predictions for Mystic, 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 Mystic, CT?

Tide data for Mystic, CT is sourced from NOAA Station #8460751. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8460751.

What is the moon phase in Mystic, CT tonight?

Tonight the moon over Mystic, CT is First Quarter (36% illuminated). This places Mystic, 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