Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 1h 06m at 8:17 am (0.6 ft)
Next high tide : 2:28 pm (8.9 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Aug 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:519.04:149.410:061.210:351.35:368:04Third Quarter1Sun
2Mon4:378.75:019.410:521.511:261.35:378:02Third Quarter2Mon
3Tue5:298.45:529.411:411.75:388:01Third Quarter3Tue
4Wed6:268.26:489.512:211.312:341.85:398:00Third Quarter4Wed
5Thu7:278.27:479.81:181.21:301.85:407:59Waning Crescent5Thu
6Fri8:278.58:4410.22:150.82:271.55:417:58Waning Crescent6Fri
7Sat9:238.89:3910.73:110.43:221.15:427:56Waning Crescent7Sat
8Sun10:179.410:3311.24:05-0.14:170.65:437:55New Moon8Sun
9Mon11:0910.011:2511.64:57-0.65:100.05:457:54New Moon9Mon
10Tue11:5910.65:46-1.16:03-0.65:467:52New Moon10Tue
11Wed12:1711.912:4811.16:35-1.46:54-1.05:477:51New Moon11Wed
12Thu1:0811.91:3711.57:23-1.47:46-1.25:487:50Waxing Crescent12Thu
13Fri2:0011.72:2711.78:12-1.38:39-1.15:497:48Waxing Crescent13Fri
14Sat2:5311.23:2011.69:02-0.99:35-0.95:507:47Waxing Crescent14Sat
15Sun3:4910.74:1411.39:55-0.410:32-0.55:517:45First Quarter15Sun
16Mon4:4710.05:1110.910:500.211:31-0.15:527:44First Quarter16Mon
17Tue5:489.46:1310.511:470.85:537:42First Quarter17Tue
18Wed6:568.97:1810.212:330.412:481.25:547:41Waxing Gibbous18Wed
19Thu8:038.78:2210.01:370.71:491.55:557:39Waxing Gibbous19Thu
20Fri9:058.79:209.92:390.82:491.65:567:38Waxing Gibbous20Fri
21Sat10:008.810:119.93:360.83:431.65:577:36Waxing Gibbous21Sat
22Sun10:478.910:569.94:260.84:321.55:587:35Full Moon22Sun
23Mon11:279.011:369.85:080.85:151.45:597:33Full Moon23Mon
24Tue12:039.15:440.85:541.26:007:31Full Moon24Tue
25Wed12:129.812:359.26:190.76:321.16:017:30Full Moon25Wed
26Thu12:469.71:069.46:540.87:090.96:037:28Full Moon26Thu
27Fri1:209.61:399.57:290.87:480.96:047:27Waning Gibbous27Fri
28Sat1:579.52:149.68:061.08:290.96:057:25Waning Gibbous28Sat
29Sun2:369.32:539.68:461.19:140.96:067:23Waning Gibbous29Sun
30Mon3:189.03:359.69:291.410:011.06:077:22Waning Gibbous30Mon
31Tue4:048.84:229.610:161.610:521.16:087:20Third Quarter31Tue
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 11:22 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 spring phase. Tonight's moon is 88% 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 Gibbous (88% 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