Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 5:43 pm (2.0 ft)
Next high tide : in 1h 45m at 12:00 pm (8.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Mar 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:139.78:508.81:421.22:240.76:195:33Waxing Gibbous1Sun
2Mon9:059.79:388.92:361.23:140.76:175:34Waxing Gibbous2Mon
3Tue9:519.710:209.03:251.23:580.66:165:35Full Moon3Tue
4Wed10:319.710:569.14:091.04:360.66:145:37Full Moon4Wed
5Thu11:089.711:299.34:490.95:120.56:125:38Full Moon5Thu
6Fri11:429.65:270.75:480.56:115:39Full Moon6Fri
7Sat12:019.412:169.66:040.66:240.56:095:40Full Moon7Sat
8Sun12:359.51:529.57:430.58:020.67:076:41Waning Gibbous8Sun
9Mon2:109.62:319.48:240.58:420.77:066:43Waning Gibbous9Mon
10Tue2:499.73:139.29:080.59:260.97:046:44Waning Gibbous10Tue
11Wed3:319.73:589.09:540.610:121.17:026:45Waning Gibbous11Wed
12Thu4:179.64:488.810:450.611:021.27:016:46Third Quarter12Thu
13Fri5:089.65:448.711:380.711:571.36:596:47Third Quarter13Fri
14Sat6:069.66:468.712:360.66:576:48Third Quarter14Sat
15Sun7:089.87:499.012:561.21:350.46:556:50Waning Crescent15Sun
16Mon8:1110.28:499.51:550.92:330.06:546:51Waning Crescent16Mon
17Tue9:1010.69:4510.12:540.43:29-0.56:526:52Waning Crescent17Tue
18Wed10:0711.110:3810.73:51-0.24:23-0.96:506:53Waning Crescent18Wed
19Thu11:0211.511:3011.34:46-0.95:15-1.36:496:54New Moon19Thu
20Fri11:5511.75:39-1.46:05-1.66:476:55New Moon20Fri
21Sat12:2011.812:4611.86:30-1.86:54-1.66:456:57New Moon21Sat
22Sun1:0912.01:3711.67:21-1.97:43-1.46:436:58Waxing Crescent22Sun
23Mon1:5812.02:2811.28:12-1.78:33-1.06:426:59Waxing Crescent23Mon
24Tue2:4911.73:2210.79:05-1.39:25-0.46:407:00Waxing Crescent24Tue
25Wed3:4211.24:1710.19:59-0.810:180.26:387:01First Quarter25Wed
26Thu4:3710.75:149.510:55-0.211:140.76:367:02First Quarter26Thu
27Fri5:3610.16:179.111:520.36:357:03First Quarter27Fri
28Sat6:399.77:228.812:131.212:530.76:337:04First Quarter28Sat
29Sun7:449.48:248.81:131.51:521.06:317:06Waxing Gibbous29Sun
30Mon8:439.49:178.92:131.52:481.06:297:07Waxing Gibbous30Mon
31Tue9:359.410:049.03:071.53:381.06:287:08Waxing Gibbous31Tue
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 2:51 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 100% 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 (100% 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