Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 10:03 pm (1.4 ft)
Next high tide : in 5h 28m at 3:52 pm (9.3 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Nov 2006

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:019.77:2310.112:410.41:080.76:174:37Waxing Gibbous1Wed
2Thu7:5610.48:2210.41:370.12:060.06:184:36Waxing Gibbous2Thu
3Fri8:4811.19:1710.62:30-0.23:02-0.66:204:35Waxing Gibbous3Fri
4Sat9:3811.610:1110.73:21-0.33:55-1.26:214:34Full Moon4Sat
5Sun10:2711.911:0210.74:11-0.44:47-1.56:224:32Full Moon5Sun
6Mon11:1512.011:5210.55:00-0.35:36-1.56:234:31Full Moon6Mon
7Tue12:0311.95:48-0.16:25-1.36:254:30Waning Gibbous7Tue
8Wed12:4210.112:5211.56:360.37:15-0.96:264:29Waning Gibbous8Wed
9Thu1:339.71:4311.07:260.78:07-0.46:274:28Waning Gibbous9Thu
10Fri2:269.32:3710.48:201.29:000.26:284:27Waning Gibbous10Fri
11Sat3:218.93:329.89:151.69:550.76:304:26Third Quarter11Sat
12Sun4:198.74:319.310:131.910:511.06:314:25Third Quarter12Sun
13Mon5:198.65:349.011:122.011:471.36:324:24Third Quarter13Mon
14Tue6:198.66:358.812:122.06:334:23Third Quarter14Tue
15Wed7:128.87:318.812:411.41:091.86:354:22Waning Crescent15Wed
16Thu7:589.18:208.71:301.52:001.56:364:21Waning Crescent16Thu
17Fri8:399.39:058.82:151.52:461.26:374:20Waning Crescent17Fri
18Sat9:179.59:468.82:581.53:290.96:384:19Waning Crescent18Sat
19Sun9:549.710:258.83:381.54:100.76:394:19New Moon19Sun
20Mon10:299.911:038.84:181.54:500.46:414:18New Moon20Mon
21Tue11:0610.011:408.84:571.55:290.36:424:17New Moon21Tue
22Wed11:4310.15:361.56:100.26:434:16New Moon22Wed
23Thu12:208.812:2410.26:171.56:530.16:444:16Waxing Crescent23Thu
24Fri1:038.81:0810.37:011.57:400.16:454:15Waxing Crescent24Fri
25Sat1:508.81:5810.27:501.58:300.16:474:15Waxing Crescent25Sat
26Sun2:418.92:5210.18:441.59:240.26:484:14First Quarter26Sun
27Mon3:369.13:5010.09:421.310:190.26:494:14First Quarter27Mon
28Tue4:349.34:529.810:431.111:160.26:504:13First Quarter28Tue
29Wed5:349.75:589.711:460.86:514:13First Quarter29Wed
30Thu6:3510.27:039.812:130.212:480.36:524:12Waxing Gibbous30Thu
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 6:57 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 (72% illuminated). This places Chelsea, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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