Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 21m at 7:03 pm (1.8 ft)
Next high tide (tomorrow) : 1:14 am (9.9 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Apr 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:2911.34:0610.19:55-0.910:140.16:257:10Third Quarter1Mon
2Tue4:2611.15:069.810:52-0.611:130.46:237:11Third Quarter2Tue
3Wed5:2910.86:129.611:53-0.46:227:12Third Quarter3Wed
4Thu6:3610.57:209.712:160.512:56-0.26:207:13Third Quarter4Thu
5Fri7:4510.48:259.91:210.61:59-0.16:187:14Waning Crescent5Fri
6Sat8:5010.49:2410.22:250.42:58-0.16:177:15Waning Crescent6Sat
7Sun9:4810.410:1710.53:250.23:530.06:157:16Waning Crescent7Sun
8Mon10:4210.411:0510.64:200.04:430.06:137:17New Moon8Mon
9Tue11:3110.311:4910.75:10-0.25:290.16:127:19New Moon9Tue
10Wed12:1510.15:55-0.36:100.36:107:20New Moon10Wed
11Thu12:2810.612:559.96:36-0.26:500.56:087:21New Moon11Thu
12Fri1:0610.51:349.67:17-0.17:290.86:077:22Waxing Crescent12Fri
13Sat1:4310.32:139.47:570.18:101.06:057:23Waxing Crescent13Sat
14Sun2:2210.02:539.18:400.48:531.36:037:24Waxing Crescent14Sun
15Mon3:049.83:378.89:250.69:401.66:027:25Waxing Crescent15Mon
16Tue3:499.54:248.610:120.910:291.86:007:26First Quarter16Tue
17Wed4:389.35:158.411:031.111:212.05:597:28First Quarter17Wed
18Thu5:309.06:108.411:551.35:577:29First Quarter18Thu
19Fri6:288.97:078.512:162.012:491.45:557:30First Quarter19Fri
20Sat7:268.98:028.81:121.91:421.35:547:31Waxing Gibbous20Sat
21Sun8:229.18:519.22:071.62:331.15:527:32Waxing Gibbous21Sun
22Mon9:139.49:379.82:591.13:220.85:517:33Waxing Gibbous22Mon
23Tue10:019.710:2110.33:490.64:090.55:497:34Waxing Gibbous23Tue
24Wed10:4910.011:0610.94:370.04:550.25:487:35Full Moon24Wed
25Thu11:3610.311:5111.45:25-0.65:41-0.15:467:37Full Moon25Thu
26Fri12:2310.66:12-1.16:27-0.35:457:38Full Moon26Fri
27Sat12:3711.81:1110.77:00-1.47:15-0.45:447:39Waning Gibbous27Sat
28Sun1:2612.02:0210.77:50-1.58:06-0.35:427:40Waning Gibbous28Sun
29Mon2:1811.92:5610.68:42-1.49:00-0.25:417:41Waning Gibbous29Mon
30Tue3:1311.73:5310.49:38-1.29:580.15:397:42Waning Gibbous30Tue
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 10:08 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 97% 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 (97% 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