Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 7:37 am (0.6 ft)
Next high tide (tomorrow) : in 1h 15m at 1:14 am (9.9 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 - Nov 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon2:5810.63:1311.78:58-0.19:37-1.17:175:37Waxing Crescent1Mon
2Tue3:5610.14:1211.19:550.410:35-0.67:195:36First Quarter2Tue
3Wed4:569.75:1410.510:550.911:350.07:205:34First Quarter3Wed
4Thu6:019.46:2010.011:571.27:215:33First Quarter4Thu
5Fri7:089.37:289.712:370.41:021.37:225:32First Quarter5Fri
6Sat8:119.48:309.61:380.62:051.37:245:31Waxing Gibbous6Sat
7Sun8:059.68:259.51:350.82:021.26:254:30Waxing Gibbous7Sun
8Mon8:529.79:139.42:250.92:521.06:264:29Waxing Gibbous8Mon
9Tue9:339.89:569.33:091.03:360.86:274:28Waxing Gibbous9Tue
10Wed10:109.810:359.23:491.14:160.76:294:26Full Moon10Wed
11Thu10:449.911:119.14:271.24:540.56:304:25Full Moon11Thu
12Fri11:179.911:459.05:041.35:310.46:314:24Full Moon12Fri
13Sat11:509.95:401.46:090.46:324:23Full Moon13Sat
14Sun12:218.912:259.96:181.56:480.46:344:23Waning Gibbous14Sun
15Mon12:598.81:049.86:581.67:300.56:354:22Waning Gibbous15Mon
16Tue1:408.71:469.77:421.88:160.66:364:21Waning Gibbous16Tue
17Wed2:258.62:339.68:291.99:050.76:374:20Waning Gibbous17Wed
18Thu3:148.63:249.59:211.99:570.76:384:19Third Quarter18Thu
19Fri4:078.74:209.410:161.810:510.76:404:18Third Quarter19Fri
20Sat5:048.95:219.411:141.611:470.66:414:18Third Quarter20Sat
21Sun6:039.36:249.612:141.26:424:17Waning Crescent21Sun
22Mon7:009.97:249.912:420.31:120.56:434:16Waning Crescent22Mon
23Tue7:5410.58:2110.21:360.12:08-0.26:444:16Waning Crescent23Tue
24Wed8:4511.29:1610.52:29-0.23:03-0.86:464:15Waning Crescent24Wed
25Thu9:3611.810:1010.73:21-0.53:56-1.46:474:15New Moon25Thu
26Fri10:2612.111:0310.84:12-0.64:48-1.86:484:14New Moon26Fri
27Sat11:1712.311:5410.85:02-0.75:39-2.06:494:14New Moon27Sat
28Sun12:0712.25:52-0.66:30-1.96:504:13Waxing Crescent28Sun
29Mon12:4710.612:5911.96:44-0.37:22-1.56:514:13Waxing Crescent29Mon
30Tue1:4110.31:5411.57:370.18:16-1.06:524:12Waxing Crescent30Tue
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 4:25 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 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