Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Friday, August 14, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 2h 31m at 7:14 pm (-0.3 ft)
Next high tide (tomorrow) : 1:32 am (11.2 ft)
Sunset today : 7:47 pm
Sunrise tomorrow : 5:50 am
Moon phase : Waxing Crescent (5% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Oct 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:548.86:149.711:451.75:415:26Third Quarter1Thu
2Fri7:018.87:199.612:301.012:491.75:425:24Waning Crescent2Fri
3Sat7:588.98:149.51:301.11:481.65:435:23Waning Crescent3Sat
4Sun8:479.19:039.52:211.12:391.45:445:21Waning Crescent4Sun
5Mon9:289.39:469.53:061.13:251.25:455:19Waning Crescent5Mon
6Tue10:059.510:249.43:451.14:051.05:465:17New Moon6Tue
7Wed10:389.610:599.34:221.14:430.85:475:16New Moon7Wed
8Thu11:099.711:339.24:571.25:200.75:485:14New Moon8Thu
9Fri11:419.85:321.25:560.65:495:12New Moon9Fri
10Sat12:079.112:159.96:081.46:350.65:515:11Waxing Crescent10Sat
11Sun12:449.012:519.96:461.57:160.65:525:09Waxing Crescent11Sun
12Mon1:248.91:329.87:271.78:010.75:535:07Waxing Crescent12Mon
13Tue2:088.72:189.78:131.88:510.85:545:06Waxing Crescent13Tue
14Wed2:578.53:099.69:032.09:440.95:555:04First Quarter14Wed
15Thu3:518.54:069.69:592.010:400.95:565:02First Quarter15Thu
16Fri4:518.55:099.610:591.811:390.85:585:01First Quarter16Fri
17Sat5:548.96:149.812:011.55:594:59Waxing Gibbous17Sat
18Sun6:559.47:1710.112:370.51:010.96:004:58Waxing Gibbous18Sun
19Mon7:5010.18:1510.51:330.21:590.26:014:56Waxing Gibbous19Mon
20Tue8:4210.99:1010.82:26-0.22:55-0.56:024:55Waxing Gibbous20Tue
21Wed9:3211.510:0411.03:17-0.43:49-1.16:034:53Full Moon21Wed
22Thu10:2212.010:5511.04:07-0.64:40-1.66:054:52Full Moon22Thu
23Fri11:1112.211:4610.94:56-0.65:31-1.76:064:50Full Moon23Fri
24Sat11:5912.25:44-0.56:20-1.66:074:49Waning Gibbous24Sat
25Sun12:3710.612:4911.96:34-0.27:11-1.26:084:47Waning Gibbous25Sun
26Mon1:2910.21:4211.47:250.38:05-0.76:104:46Waning Gibbous26Mon
27Tue2:239.72:3710.88:190.89:00-0.16:114:44Third Quarter27Tue
28Wed3:209.33:3410.29:151.29:560.46:124:43Third Quarter28Wed
29Thu4:199.04:359.710:141.610:540.86:134:42Third Quarter29Thu
30Fri5:228.85:399.311:151.811:521.16:144:40Third Quarter30Fri
31Sat6:248.86:439.112:171.86:164:39Waning Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443725)

Common Questions About Chelsea, MA Tides

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What time does the tide turn (slack tide) in Chelsea, MA today?

Slack tide in Chelsea, MA is approximately 10:23 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 Chelsea, MA?

Chelsea, MA is currently in a spring phase. Tonight's moon is 5% 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 maximum.

What datum are Chelsea, MA 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 Chelsea, MA?

Tide predictions for Chelsea, MA 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 Chelsea, MA?

Tide data for Chelsea, MA is sourced from NOAA Station #8443725. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8443725.

What is the moon phase in Chelsea, MA tonight?

Tonight the moon over Chelsea, MA is Waxing Crescent (5% illuminated). This places Chelsea, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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