Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Monday, July 6, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 1h 55m at 10:55 pm (1.2 ft)
Next high tide (tomorrow) : 4:57 am (9.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Third Quarter (62% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jan 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:239.32:359.68:221.08:490.47:134:22Waxing Crescent1Tue
2Wed3:089.23:229.19:121.29:350.87:134:22First Quarter2Wed
3Thu3:539.14:128.610:021.310:221.27:134:23First Quarter3Thu
4Fri4:429.05:068.210:551.411:121.57:134:24First Quarter4Fri
5Sat5:348.96:058.011:501.57:134:25First Quarter5Sat
6Sun6:279.07:037.912:041.712:451.47:134:26Waxing Gibbous6Sun
7Mon7:199.17:567.912:561.91:381.27:124:27Waxing Gibbous7Mon
8Tue8:089.38:468.01:471.92:291.07:124:28Waxing Gibbous8Tue
9Wed8:559.69:338.22:361.73:170.67:124:29Waxing Gibbous9Wed
10Thu9:399.910:178.53:231.54:030.37:124:30Full Moon10Thu
11Fri10:2310.210:598.94:091.24:47-0.17:124:31Full Moon11Fri
12Sat11:0610.611:409.34:540.85:30-0.57:114:33Full Moon12Sat
13Sun11:5010.85:390.46:12-0.87:114:34Full Moon13Sun
14Mon12:239.812:3510.96:250.16:57-0.97:104:35Waning Gibbous14Mon
15Tue1:0810.11:2310.97:14-0.27:43-0.97:104:36Waning Gibbous15Tue
16Wed1:5510.52:1410.78:06-0.38:32-0.87:094:37Waning Gibbous16Wed
17Thu2:4610.73:0910.39:01-0.49:24-0.57:094:38Third Quarter17Thu
18Fri3:3910.74:079.89:58-0.310:19-0.17:084:40Third Quarter18Fri
19Sat4:3610.75:109.310:59-0.211:160.37:084:41Third Quarter19Sat
20Sun5:3810.66:199.012:02-0.27:074:42Waning Crescent20Sun
21Mon6:4310.67:268.912:170.61:06-0.27:064:43Waning Crescent21Mon
22Tue7:4610.68:309.01:190.72:08-0.27:064:45Waning Crescent22Tue
23Wed8:4610.79:299.12:190.73:07-0.37:054:46Waning Crescent23Wed
24Thu9:4210.710:229.23:160.74:02-0.47:044:47New Moon24Thu
25Fri10:3310.711:099.44:100.64:50-0.47:034:48New Moon25Fri
26Sat11:1910.611:529.44:580.55:33-0.47:034:50New Moon26Sat
27Sun12:0110.45:420.56:12-0.27:024:51New Moon27Sun
28Mon12:319.512:4110.16:240.56:510.07:014:52Waxing Crescent28Mon
29Tue1:099.41:219.77:070.67:310.27:004:53Waxing Crescent29Tue
30Wed1:479.42:019.47:500.78:120.56:594:55Waxing Crescent30Wed
31Thu2:269.32:449.08:360.98:550.96:584:56Waxing Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443725)

Common Questions About Chelsea, MA Tides

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

Slack tide in Chelsea, MA is approximately 1:56 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 Chelsea, MA?

Chelsea, MA is currently in a transitional phase. Tonight's moon is 62% 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 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 Third Quarter (62% illuminated). This places Chelsea, MA 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