Tides Today & Tomorrow in Mystic, CT

TIDE TIMES for Tuesday, August 18, 2026
The tide is currently falling in Mystic, CT.
Next low tide : in 4h 38m at 8:07 am (0.5 ft)
Next high tide : 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 - Feb 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue9:262.59:512.53:330.03:54-0.26:595:03New Moon1Tue
2Wed10:032.510:272.44:160.04:34-0.16:585:04Waxing Crescent2Wed
3Thu10:422.411:032.45:010.05:160.06:575:06Waxing Crescent3Thu
4Fri11:252.311:422.55:520.06:010.16:565:07Waxing Crescent4Fri
5Sat12:142.16:470.06:510.26:555:08Waxing Crescent5Sat
6Sun12:292.51:122.07:460.07:450.36:545:09First Quarter6Sun
7Mon1:292.52:171.98:470.08:440.36:535:11First Quarter7Mon
8Tue2:392.63:231.99:46-0.19:440.26:525:12First Quarter8Tue
9Wed3:482.64:252.010:44-0.210:450.16:505:13First Quarter9Wed
10Thu4:512.75:222.211:40-0.311:450.06:495:14Waxing Gibbous10Thu
11Fri5:472.96:152.512:33-0.46:485:16Waxing Gibbous11Fri
12Sat6:402.97:052.712:42-0.21:24-0.56:475:17Waxing Gibbous12Sat
13Sun7:293.07:532.91:37-0.42:11-0.66:455:18Full Moon13Sun
14Mon8:172.98:413.02:29-0.52:58-0.66:445:19Full Moon14Mon
15Tue9:052.89:293.13:20-0.53:43-0.56:435:21Full Moon15Tue
16Wed9:542.710:183.04:10-0.54:28-0.46:415:22Waning Gibbous16Wed
17Thu10:432.511:082.95:01-0.35:14-0.26:405:23Waning Gibbous17Thu
18Fri11:352.311:592.85:54-0.26:020.06:395:24Waning Gibbous18Fri
19Sat12:282.16:480.06:540.26:375:25Waning Gibbous19Sat
20Sun12:532.71:241.97:440.17:480.46:365:27Third Quarter20Sun
21Mon1:512.52:221.88:400.28:440.56:345:28Third Quarter21Mon
22Tue2:502.43:221.89:340.39:420.56:335:29Third Quarter22Tue
23Wed3:502.34:191.910:260.310:380.56:325:30Third Quarter23Wed
24Thu4:472.35:132.011:150.311:300.46:305:31Waning Crescent24Thu
25Fri5:372.36:022.212:010.26:295:33Waning Crescent25Fri
26Sat6:232.46:462.312:190.312:440.16:275:34Waning Crescent26Sat
27Sun7:052.47:282.51:050.21:250.06:265:35Waning Crescent27Sun
28Mon7:442.58:072.61:470.12:06-0.16:245:36New Moon28Mon
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 11:10 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 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