Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Thursday, July 16, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 7:18 am (-1.2 ft)
Next high tide : in 13m at 12:57 am (11.9 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Dec 2056

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:429.36:039.411:541.26:544:12Third Quarter1Fri
2Sat6:399.87:039.712:210.412:530.66:554:12Waning Crescent2Sat
3Sun7:3310.48:019.91:160.21:49-0.16:564:11Waning Crescent3Sun
4Mon8:2511.18:5710.22:09-0.12:44-0.76:574:11Waning Crescent4Mon
5Tue9:1711.69:5110.53:01-0.33:38-1.36:584:11New Moon5Tue
6Wed10:0812.010:4510.73:53-0.54:31-1.86:594:11New Moon6Wed
7Thu10:5912.311:3710.74:45-0.65:22-2.07:004:11New Moon7Thu
8Fri11:5112.35:36-0.66:13-2.07:014:11Waxing Crescent8Fri
9Sat12:3010.612:4312.16:27-0.57:05-1.77:024:11Waxing Crescent9Sat
10Sun1:2310.41:3711.67:20-0.27:58-1.37:034:11Waxing Crescent10Sun
11Mon2:1810.22:3211.18:160.28:53-0.87:034:11Waxing Crescent11Mon
12Tue3:149.93:3010.59:130.59:48-0.37:044:11First Quarter12Tue
13Wed4:129.74:299.910:110.810:430.27:054:11First Quarter13Wed
14Thu5:119.55:329.411:111.111:390.67:064:12First Quarter14Thu
15Fri6:119.56:359.012:121.27:064:12First Quarter15Fri
16Sat7:079.57:338.812:340.91:101.17:074:12Waxing Gibbous16Sat
17Sun7:579.58:258.71:261.22:031.07:084:13Waxing Gibbous17Sun
18Mon8:429.69:138.72:141.32:510.97:084:13Waxing Gibbous18Mon
19Tue9:249.79:568.63:001.43:360.77:094:13Waxing Gibbous19Tue
20Wed10:039.710:368.63:421.54:170.57:094:14Full Moon20Wed
21Thu10:409.811:138.64:231.54:560.47:104:14Full Moon21Thu
22Fri11:169.811:498.75:031.45:350.37:104:15Full Moon22Fri
23Sat11:529.95:421.46:140.27:114:15Full Moon23Sat
24Sun12:268.712:309.96:231.36:550.17:114:16Waning Gibbous24Sun
25Mon1:058.81:119.97:051.37:380.17:114:17Waning Gibbous25Mon
26Tue1:478.91:559.97:511.38:230.17:124:17Waning Gibbous26Tue
27Wed2:339.12:439.88:401.29:110.17:124:18Waning Gibbous27Wed
28Thu3:219.33:359.79:321.110:010.27:124:19Third Quarter28Thu
29Fri4:139.54:329.510:280.910:540.27:124:20Third Quarter29Fri
30Sat5:089.85:339.411:260.611:500.27:134:20Third Quarter30Sat
31Sun6:0710.26:379.412:260.27:134:21Waning Crescent31Sun
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 7% 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 Waxing Crescent (7% 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