Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 2h 57m at 3:54 pm (0.7 ft)
Next high tide : 10:12 pm (11.5 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:18 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jun 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:168.98:429.52:031.52:221.35:098:14Waning Crescent1Mon
2Tue9:079.09:279.92:531.23:101.25:098:15Waning Crescent2Tue
3Wed9:559.210:1110.33:420.73:571.05:088:16Waning Crescent3Wed
4Thu10:419.510:5510.74:300.24:430.85:088:16New Moon4Thu
5Fri11:289.811:3911.25:17-0.35:290.55:078:17New Moon5Fri
6Sat12:1410.06:03-0.76:160.35:078:18New Moon6Sat
7Sun12:2511.51:0110.36:50-1.17:030.15:078:18New Moon7Sun
8Mon1:1311.71:5110.47:39-1.27:530.05:078:19Waxing Crescent8Mon
9Tue2:0411.82:4310.58:29-1.38:470.05:068:20Waxing Crescent9Tue
10Wed2:5811.63:3810.69:23-1.29:440.15:068:20Waxing Crescent10Wed
11Thu3:5511.34:3610.610:18-1.010:430.15:068:21First Quarter11Thu
12Fri4:5511.05:3610.611:15-0.711:440.25:068:21First Quarter12Fri
13Sat5:5910.66:3810.712:13-0.45:068:22First Quarter13Sat
14Sun7:0510.27:4110.812:470.21:12-0.15:068:22Waxing Gibbous14Sun
15Mon8:1010.08:3910.91:490.12:100.25:068:22Waxing Gibbous15Mon
16Tue9:119.99:3311.02:490.03:060.45:068:23Waxing Gibbous16Tue
17Wed10:079.810:2410.93:46-0.13:580.65:068:23Waxing Gibbous17Wed
18Thu10:599.611:1110.84:38-0.14:480.85:068:23Full Moon18Thu
19Fri11:469.511:5410.75:26-0.15:330.95:078:24Full Moon19Fri
20Sat12:299.46:090.06:161.15:078:24Full Moon20Sat
21Sun12:3410.51:099.26:490.16:571.25:078:24Full Moon21Sun
22Mon1:1310.31:479.17:290.27:381.45:078:24Waning Gibbous22Mon
23Tue1:5210.12:269.08:100.48:211.55:078:25Waning Gibbous23Tue
24Wed2:329.93:079.08:520.59:071.65:088:25Waning Gibbous24Wed
25Thu3:159.73:519.09:370.79:551.75:088:25Waning Gibbous25Thu
26Fri4:019.44:369.010:230.910:441.75:088:25Third Quarter26Fri
27Sat4:499.25:249.011:101.011:361.75:098:25Third Quarter27Sat
28Sun5:418.96:149.111:591.25:098:25Third Quarter28Sun
29Mon6:368.87:079.312:291.612:501.35:108:25Third Quarter29Mon
30Tue7:338.87:589.71:241.41:421.35:108:25Waning Crescent30Tue
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 7:03 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 5% 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 Waning Crescent (5% 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