Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 2h 52m at 11:16 am (0.8 ft)
Next high tide : 5:27 pm (9.8 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:14 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Oct 2047

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue10:169.910:3610.13:530.54:140.76:416:26Waxing Gibbous1Tue
2Wed11:0010.011:219.94:390.65:010.66:426:24Full Moon2Wed
3Thu11:3810.05:190.75:420.56:436:22Full Moon3Thu
4Fri12:009.712:1310.05:560.86:190.46:446:20Full Moon4Fri
5Sat12:369.512:4610.06:321.06:560.56:456:19Full Moon5Sat
6Sun1:119.31:199.97:081.27:340.56:466:17Waning Gibbous6Sun
7Mon1:479.11:559.87:461.48:150.76:476:15Waning Gibbous7Mon
8Tue2:268.92:349.68:271.78:580.96:496:14Waning Gibbous8Tue
9Wed3:088.63:189.49:111.99:461.16:506:12Waning Gibbous9Wed
10Thu3:548.44:069.39:592.110:361.36:516:10Third Quarter10Thu
11Fri4:458.24:589.110:512.311:301.46:526:09Third Quarter11Fri
12Sat5:408.15:569.011:472.36:536:07Third Quarter12Sat
13Sun6:398.36:579.112:251.412:452.16:546:05Third Quarter13Sun
14Mon7:378.77:569.41:201.21:421.76:556:04Waning Crescent14Mon
15Tue8:309.38:519.82:140.92:371.16:576:02Waning Crescent15Tue
16Wed9:199.99:4210.23:040.53:290.46:586:00Waning Crescent16Wed
17Thu10:0610.710:3310.53:520.24:20-0.46:595:59New Moon17Thu
18Fri10:5211.311:2310.84:40-0.25:11-1.07:005:57New Moon18Fri
19Sat11:3911.95:28-0.46:00-1.57:015:56New Moon19Sat
20Sun12:1210.912:2712.26:16-0.66:50-1.87:025:54New Moon20Sun
21Mon1:0210.91:1712.37:04-0.57:41-1.77:045:53Waxing Crescent21Mon
22Tue1:5410.72:0912.17:55-0.38:34-1.47:055:51Waxing Crescent22Tue
23Wed2:4910.43:0511.78:500.09:31-1.07:065:50Waxing Crescent23Wed
24Thu3:4810.04:0511.29:480.410:29-0.57:075:48First Quarter24Thu
25Fri4:499.75:0810.610:490.811:300.07:085:47First Quarter25Fri
26Sat5:549.56:1510.111:521.07:105:45First Quarter26Sat
27Sun7:019.57:249.812:320.312:581.27:115:44First Quarter27Sun
28Mon8:049.68:279.71:330.62:021.17:125:43Waxing Gibbous28Mon
29Tue8:599.89:239.62:300.83:000.97:135:41Waxing Gibbous29Tue
30Wed9:479.910:139.43:210.93:520.87:155:40Waxing Gibbous30Wed
31Thu10:3010.010:579.34:061.14:370.77:165:39Full Moon31Thu
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 2:21 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places Chelsea, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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