Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 7:18 am (-1.2 ft)
Next high tide (tomorrow) : in 5h 25m at 12:57 am (11.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:20 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Mar 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:139.39:448.52:461.73:231.06:185:34Waning Crescent1Sun
2Mon9:559.410:228.83:321.44:030.86:165:35New Moon2Mon
3Tue10:339.510:569.04:141.24:410.76:155:36New Moon3Tue
4Wed11:099.611:299.34:540.95:160.66:135:37New Moon4Wed
5Thu11:449.65:320.65:520.56:115:38New Moon5Thu
6Fri12:029.612:209.66:110.46:290.56:105:40Waxing Crescent6Fri
7Sat12:369.812:589.66:510.27:080.56:085:41Waxing Crescent7Sat
8Sun1:1410.01:409.47:340.17:500.76:065:42Waxing Crescent8Sun
9Mon1:5610.12:269.28:210.18:360.86:055:43Waxing Crescent9Mon
10Tue2:4310.13:169.09:120.29:271.06:035:44First Quarter10Tue
11Wed3:3510.14:138.810:070.310:231.16:015:46First Quarter11Wed
12Thu4:3310.05:168.711:060.311:231.16:005:47First Quarter12Thu
13Fri5:3810.16:238.912:080.25:585:48First Quarter13Fri
14Sat6:4610.37:289.312:270.91:100.05:565:49Waxing Gibbous14Sat
15Sun7:5010.68:289.91:300.52:09-0.45:555:50Waxing Gibbous15Sun
16Mon8:5010.99:2310.52:300.03:05-0.75:535:51Waxing Gibbous16Mon
17Tue9:4611.210:1411.03:27-0.53:57-1.05:515:53Full Moon17Tue
18Wed10:3911.311:0311.44:21-1.04:46-1.15:495:54Full Moon18Wed
19Thu11:2911.211:5011.65:12-1.35:33-1.05:485:55Full Moon19Thu
20Fri12:1711.06:01-1.46:19-0.85:465:56Waning Gibbous20Fri
21Sat12:3511.51:0510.66:48-1.27:05-0.35:445:57Waning Gibbous21Sat
22Sun1:2211.21:5310.07:37-0.87:520.25:425:58Waning Gibbous22Sun
23Mon2:0910.82:439.58:27-0.38:420.75:415:59Waning Gibbous23Mon
24Tue2:5910.33:358.99:180.39:331.35:396:01Third Quarter24Tue
25Wed3:519.74:308.510:110.810:271.75:376:02Third Quarter25Wed
26Thu4:489.35:318.211:071.211:242.05:356:03Third Quarter26Thu
27Fri5:509.06:348.112:061.45:346:04Third Quarter27Fri
28Sat6:528.97:318.312:232.11:031.55:326:05Waning Crescent28Sat
29Sun7:489.08:218.51:201.91:551.45:306:06Waning Crescent29Sun
30Mon8:379.19:048.82:121.72:411.35:286:07Waning Crescent30Mon
31Tue9:219.29:439.13:001.43:241.15:276:09Waning Crescent31Tue
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 4:07 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 2% 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 (2% 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