Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 9:14 pm (1.5 ft)
Next high tide : in 2h 36m at 3:09 pm (9.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:12 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Nov 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:1910.32:3211.78:160.18:57-1.07:175:37Waning Gibbous1Sat
2Sun2:159.92:2811.18:110.68:53-0.56:194:36Waning Gibbous2Sun
3Mon3:139.43:2710.59:091.19:510.16:204:34Third Quarter3Mon
4Tue4:149.14:299.910:091.510:510.66:214:33Third Quarter4Tue
5Wed5:198.95:369.511:121.711:520.96:224:32Third Quarter5Wed
6Thu6:258.96:429.312:161.86:244:31Waning Crescent6Thu
7Fri7:239.17:419.212:511.11:171.66:254:30Waning Crescent7Fri
8Sat8:129.38:329.11:431.22:101.46:264:29Waning Crescent8Sat
9Sun8:549.59:179.12:291.32:571.26:274:28Waning Crescent9Sun
10Mon9:329.69:589.03:111.33:400.96:294:26Waning Crescent10Mon
11Tue10:079.710:368.93:491.44:190.76:304:25New Moon11Tue
12Wed10:419.811:118.84:271.54:560.66:314:24New Moon12Wed
13Thu11:149.811:468.85:041.65:330.56:324:23New Moon13Thu
14Fri11:489.85:411.66:120.56:344:23New Moon14Fri
15Sat12:228.712:259.86:191.76:520.56:354:22Waxing Crescent15Sat
16Sun1:028.61:059.87:001.87:360.66:364:21Waxing Crescent16Sun
17Mon1:458.51:509.87:451.98:240.66:374:20Waxing Crescent17Mon
18Tue2:338.52:409.78:352.09:150.76:384:19Waxing Crescent18Tue
19Wed3:258.53:359.69:301.910:090.76:404:18First Quarter19Wed
20Thu4:218.74:359.510:281.711:040.66:414:18First Quarter20Thu
21Fri5:209.05:389.511:291.46:424:17First Quarter21Fri
22Sat6:199.66:429.712:010.512:300.96:434:16Waxing Gibbous22Sat
23Sun7:1510.27:439.912:560.31:290.26:444:16Waxing Gibbous23Sun
24Mon8:0810.98:4010.11:500.12:26-0.56:464:15Waxing Gibbous24Mon
25Tue8:5911.49:3510.32:42-0.13:20-1.16:474:14Full Moon25Tue
26Wed9:5011.910:2810.43:34-0.24:13-1.56:484:14Full Moon26Wed
27Thu10:4112.011:2010.34:25-0.25:05-1.66:494:14Full Moon27Thu
28Fri11:3112.05:15-0.15:55-1.66:504:13Full Moon28Fri
29Sat12:1210.112:2111.86:050.16:45-1.36:514:13Waning Gibbous29Sat
30Sun1:039.91:1311.36:560.47:37-0.96:524:12Waning Gibbous30Sun
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 6:11 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 81% 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 (81% 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