Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 2h 36m at 1:59 pm (1.0 ft)
Next high tide : 8:17 pm (10.8 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jan 2051

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:449.31:559.87:420.98:090.27:134:22Waning Gibbous1Sun
2Mon2:279.22:399.48:291.18:540.57:134:22Waning Gibbous2Mon
3Tue3:119.13:269.09:171.29:410.87:134:23Third Quarter3Tue
4Wed3:579.04:168.610:081.410:291.17:134:24Third Quarter4Wed
5Thu4:479.05:108.311:011.411:201.47:134:25Third Quarter5Thu
6Fri5:399.06:088.211:551.47:134:26Third Quarter6Fri
7Sat6:339.17:058.112:121.512:501.27:124:27Waning Crescent7Sat
8Sun7:259.37:588.31:041.51:431.07:124:28Waning Crescent8Sun
9Mon8:139.68:478.51:541.42:330.67:124:29Waning Crescent9Mon
10Tue9:0010.09:348.82:431.23:220.27:124:30Waning Crescent10Tue
11Wed9:4510.410:209.23:320.94:08-0.37:124:32New Moon11Wed
12Thu10:3110.811:059.64:190.54:54-0.77:114:33New Moon12Thu
13Fri11:1711.111:5010.15:060.15:39-1.17:114:34New Moon13Fri
14Sat12:0311.45:53-0.36:24-1.47:104:35Waxing Crescent14Sat
15Sun12:3610.512:5211.46:42-0.67:12-1.47:104:36Waxing Crescent15Sun
16Mon1:2510.81:4311.37:33-0.78:02-1.47:094:37Waxing Crescent16Mon
17Tue2:1610.92:3710.98:28-0.78:54-1.17:094:38Waxing Crescent17Tue
18Wed3:1011.03:3510.59:24-0.79:49-0.87:084:40First Quarter18Wed
19Thu4:0610.94:3610.010:23-0.510:45-0.37:084:41First Quarter19Thu
20Fri5:0710.85:429.611:25-0.311:450.07:074:42First Quarter20Fri
21Sat6:1110.76:509.312:29-0.27:064:43Waxing Gibbous21Sat
22Sun7:1510.67:549.212:460.31:31-0.27:064:45Waxing Gibbous22Sun
23Mon8:1510.68:549.31:460.52:31-0.27:054:46Waxing Gibbous23Mon
24Tue9:1110.69:499.32:430.63:27-0.37:044:47Waxing Gibbous24Tue
25Wed10:0210.610:389.43:370.64:17-0.37:034:48Full Moon25Wed
26Thu10:4810.511:219.44:260.65:00-0.37:034:50Full Moon26Thu
27Fri11:3010.311:599.45:100.65:40-0.27:024:51Full Moon27Fri
28Sat12:0810.15:510.66:18-0.17:014:52Full Moon28Sat
29Sun12:369.412:469.96:310.66:560.17:004:54Waning Gibbous29Sun
30Mon1:129.31:259.67:130.77:360.36:594:55Waning Gibbous30Mon
31Tue1:509.32:059.37:560.88:180.56:584:56Waning Gibbous31Tue
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 5:08 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 20% 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 Waning Crescent (20% 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