Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 4:51 pm (0.4 ft)
Next high tide : in 5h 31m at 10:56 am (9.7 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:19 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Feb 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:2411.02:4910.58:40-0.89:03-0.86:574:57Third Quarter1Tue
2Wed3:1711.03:4610.19:36-0.79:57-0.46:564:59Third Quarter2Wed
3Thu4:1410.94:489.610:36-0.510:550.06:555:00Third Quarter3Thu
4Fri5:1610.75:569.311:38-0.311:570.36:545:01Third Quarter4Fri
5Sat6:2210.67:059.112:43-0.26:535:03Waning Crescent5Sat
6Sun7:2810.68:099.212:590.51:46-0.26:525:04Waning Crescent6Sun
7Mon8:2910.69:089.32:000.62:45-0.26:505:05Waning Crescent7Mon
8Tue9:2510.610:029.52:580.53:40-0.36:495:06New Moon8Tue
9Wed10:1610.610:499.63:520.44:29-0.36:485:08New Moon9Wed
10Thu11:0210.511:319.74:400.35:11-0.36:475:09New Moon10Thu
11Fri11:4310.35:240.35:50-0.26:455:10New Moon11Fri
12Sat12:099.712:2210.16:050.36:280.06:445:12Waxing Crescent12Sat
13Sun12:459.71:009.86:460.47:070.26:435:13Waxing Crescent13Sun
14Mon1:229.61:399.57:270.57:470.56:415:14Waxing Crescent14Mon
15Tue2:019.52:209.18:110.68:300.86:405:16Waxing Crescent15Tue
16Wed2:429.43:048.88:570.89:151.16:395:17First Quarter16Wed
17Thu3:269.23:528.49:461.010:031.46:375:18First Quarter17Thu
18Fri4:149.14:458.110:381.210:541.76:365:19First Quarter18Fri
19Sat5:078.95:437.911:331.311:481.86:345:21First Quarter19Sat
20Sun6:059.06:437.912:291.26:335:22First Quarter20Sun
21Mon7:029.27:408.212:441.81:241.06:315:23Waxing Gibbous21Mon
22Tue7:569.58:318.61:381.52:170.76:305:24Waxing Gibbous22Tue
23Wed8:479.99:209.12:301.13:060.26:285:26Waxing Gibbous23Wed
24Thu9:3510.410:069.73:210.63:54-0.36:275:27Full Moon24Thu
25Fri10:2310.810:5110.44:100.04:40-0.86:255:28Full Moon25Fri
26Sat11:1011.211:3610.94:58-0.65:25-1.16:245:29Full Moon26Sat
27Sun11:5811.35:46-1.16:11-1.36:225:31Waning Gibbous27Sun
28Mon12:2211.412:4711.36:35-1.46:58-1.36:205:32Waning Gibbous28Mon
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 1:53 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 1% 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 New Moon (1% 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