Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 11:49 pm (1.0 ft)
Next high tide : in 5h 07m at 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 - Mar 2048

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:3410.511:5610.55:24-0.25:47-0.46:175:34Full Moon1Sun
2Mon12:1810.66:08-0.66:29-0.56:165:35Waning Gibbous2Mon
3Tue12:3810.91:0310.56:54-0.87:14-0.56:145:37Waning Gibbous3Tue
4Wed1:2411.11:5310.37:44-0.98:02-0.36:125:38Waning Gibbous4Wed
5Thu2:1311.12:4610.08:37-0.88:550.06:115:39Waning Gibbous5Thu
6Fri3:0711.03:449.69:33-0.69:510.36:095:40Third Quarter6Fri
7Sat4:0610.84:479.210:33-0.310:520.66:075:41Third Quarter7Sat
8Sun6:1110.56:569.112:37-0.17:066:43Third Quarter8Sun
9Mon7:2110.48:069.112:560.81:420.07:046:44Waning Crescent9Mon
10Tue8:2810.49:109.42:010.72:45-0.17:026:45Waning Crescent10Tue
11Wed9:3110.510:079.83:040.63:44-0.27:016:46Waning Crescent11Wed
12Thu10:2710.610:5810.14:030.34:37-0.26:596:47Waning Crescent12Thu
13Fri11:1810.511:4410.34:570.15:24-0.26:576:48New Moon13Fri
14Sat12:0410.45:44-0.16:06-0.16:556:50New Moon14Sat
15Sun12:2510.312:4610.26:27-0.26:460.16:546:51New Moon15Sun
16Mon1:0310.31:259.97:08-0.17:240.36:526:52Waxing Crescent16Mon
17Tue1:3910.22:049.67:490.08:030.66:506:53Waxing Crescent17Tue
18Wed2:1710.02:449.28:300.28:451.06:496:54Waxing Crescent18Wed
19Thu2:579.83:268.99:140.59:291.36:476:55Waxing Crescent19Thu
20Fri3:399.54:118.510:010.810:161.66:456:56First Quarter20Fri
21Sat4:269.35:018.210:511.111:061.96:436:58First Quarter21Sat
22Sun5:179.05:567.911:441.46:426:59First Quarter22Sun
23Mon6:148.86:577.912:002.112:401.56:407:00First Quarter23Mon
24Tue7:158.87:568.112:572.11:361.46:387:01First Quarter24Tue
25Wed8:139.08:488.51:541.92:301.26:367:02Waxing Gibbous25Wed
26Thu9:059.39:359.02:481.63:190.96:357:03Waxing Gibbous26Thu
27Fri9:539.610:199.53:381.14:060.66:337:04Waxing Gibbous27Fri
28Sat10:4010.011:0210.24:270.54:510.26:317:06Full Moon28Sat
29Sun11:2610.311:4510.85:14-0.25:35-0.16:297:07Full Moon29Sun
30Mon12:1110.66:00-0.76:19-0.46:287:08Full Moon30Mon
31Tue12:2811.312:5710.76:46-1.27:03-0.56:267:09Full Moon31Tue
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 8:38 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