Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 3:28 am (1.0 ft)
Next high tide : in 6h 24m at 9:12 pm (9.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Aug 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:269.18:4610.42:010.42:141.15:378:03Waning Crescent1Sun
2Mon9:259.19:4110.33:010.53:111.25:388:02Waning Crescent2Mon
3Tue10:189.010:3010.23:550.54:031.35:398:00Waning Crescent3Tue
4Wed11:059.011:1410.14:430.64:501.35:407:59New Moon4Wed
5Thu11:469.111:5410.05:250.65:331.35:417:58New Moon5Thu
6Fri12:229.16:030.56:121.25:427:57New Moon6Fri
7Sat12:309.912:569.26:390.56:511.15:437:55New Moon7Sat
8Sun1:059.91:309.37:160.57:301.05:447:54Waxing Crescent8Sun
9Mon1:419.82:059.47:530.68:111.05:457:53Waxing Crescent9Mon
10Tue2:199.62:439.58:330.78:541.05:467:51Waxing Crescent10Tue
11Wed3:009.43:239.59:150.99:401.05:477:50Waxing Crescent11Wed
12Thu3:449.24:079.610:001.110:291.15:487:49First Quarter12Thu
13Fri4:318.94:549.610:471.311:201.15:507:47First Quarter13Fri
14Sat5:238.75:479.611:381.45:517:46First Quarter14Sat
15Sun6:218.66:459.812:151.012:321.55:527:44First Quarter15Sun
16Mon7:228.77:4410.11:130.81:291.35:537:43Waxing Gibbous16Mon
17Tue8:239.08:4310.52:100.52:261.05:547:41Waxing Gibbous17Tue
18Wed9:199.59:3811.03:060.03:220.55:557:40Waxing Gibbous18Wed
19Thu10:1410.010:3311.54:01-0.54:170.05:567:38Full Moon19Thu
20Fri11:0610.611:2711.84:53-1.05:11-0.65:577:37Full Moon20Fri
21Sat11:5711.25:44-1.46:04-1.15:587:35Full Moon21Sat
22Sun12:1912.012:4711.66:33-1.66:55-1.45:597:34Waning Gibbous22Sun
23Mon1:1012.01:3711.97:22-1.67:47-1.56:007:32Waning Gibbous23Mon
24Tue2:0211.72:2811.98:12-1.38:41-1.36:017:30Waning Gibbous24Tue
25Wed2:5611.33:2111.69:03-0.99:36-0.96:027:29Waning Gibbous25Wed
26Thu3:5110.74:1611.39:57-0.410:32-0.56:037:27Third Quarter26Thu
27Fri4:4910.15:1310.810:520.211:300.06:047:25Third Quarter27Fri
28Sat5:509.56:1510.311:490.86:057:24Third Quarter28Sat
29Sun6:569.17:2010.012:310.512:491.26:067:22Third Quarter29Sun
30Mon8:028.98:229.91:340.71:501.46:087:20Waning Crescent30Mon
31Tue9:018.99:179.82:330.92:471.56:097:19Waning Crescent31Tue
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 12:20 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 84% 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 Gibbous (84% 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