Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 7:03 pm (1.8 ft)
Next high tide : in 4h 43m at 1:12 pm (8.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jan 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:3511.911:1210.54:21-0.44:58-1.87:134:22New Moon1Wed
2Thu11:2712.15:13-0.85:49-2.07:134:23New Moon2Thu
3Fri12:0310.912:1912.26:05-1.06:39-2.17:134:23Waxing Crescent3Fri
4Sat12:5511.01:1211.96:58-1.07:31-1.97:134:24Waxing Crescent4Sat
5Sun1:4811.12:0711.57:53-0.98:23-1.57:134:25Waxing Crescent5Sun
6Mon2:4311.03:0410.98:50-0.79:17-1.07:134:26First Quarter6Mon
7Tue3:3910.84:0310.39:48-0.310:12-0.57:134:27First Quarter7Tue
8Wed4:3610.65:059.710:470.011:090.17:124:28First Quarter8Wed
9Thu5:3710.36:109.211:480.37:124:29First Quarter9Thu
10Fri6:3910.17:148.912:060.512:500.47:124:30Waxing Gibbous10Fri
11Sat7:3610.08:138.71:040.91:490.57:124:32Waxing Gibbous11Sat
12Sun8:299.99:068.71:581.12:430.57:114:33Waxing Gibbous12Sun
13Mon9:179.99:538.62:491.33:310.57:114:34Waxing Gibbous13Mon
14Tue10:019.810:358.73:361.34:140.57:104:35Full Moon14Tue
15Wed10:409.811:128.74:191.34:520.47:104:36Full Moon15Wed
16Thu11:179.811:468.84:591.25:290.37:104:37Full Moon16Thu
17Fri11:529.85:381.16:060.27:094:38Full Moon17Fri
18Sat12:208.912:289.76:171.06:440.27:084:40Waning Gibbous18Sat
19Sun12:569.01:059.76:580.97:240.37:084:41Waning Gibbous19Sun
20Mon1:349.21:469.57:410.98:050.37:074:42Waning Gibbous20Mon
21Tue2:149.32:299.48:260.98:490.57:074:43Waning Gibbous21Tue
22Wed2:579.43:169.19:150.99:360.67:064:45Third Quarter22Wed
23Thu3:449.54:078.910:060.810:250.87:054:46Third Quarter23Thu
24Fri4:359.65:048.711:010.711:190.97:044:47Third Quarter24Fri
25Sat5:319.86:068.711:580.57:034:48Third Quarter25Sat
26Sun6:3110.17:098.912:160.812:570.27:034:50Waning Crescent26Sun
27Mon7:3010.58:089.31:130.61:55-0.37:024:51Waning Crescent27Mon
28Tue8:2811.09:069.72:110.32:52-0.87:014:52Waning Crescent28Tue
29Wed9:2411.410:0110.23:07-0.23:47-1.37:004:54New Moon29Wed
30Thu10:1911.810:5410.74:02-0.64:39-1.76:594:55New Moon30Thu
31Fri11:1212.011:4511.14:56-1.15:30-2.06:584:56New Moon31Fri
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 4:07 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 97% 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 Full Moon (97% 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