Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Sunday, July 26, 2026
The tide is currently rising in Chelsea, MA.
Next low tide : 3:48 pm (2.2 ft)
Next high tide : in 1h 40m at 10:08 am (8.1 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:30 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Oct 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:339.85:5510.511:320.76:416:25Third Quarter1Wed
2Thu6:409.47:0210.212:130.112:351.16:426:23Third Quarter2Thu
3Fri7:489.38:0810.01:170.41:391.26:436:22Waning Crescent3Fri
4Sat8:499.49:079.92:180.62:391.26:446:20Waning Crescent4Sat
5Sun9:429.59:599.93:140.73:341.16:456:18Waning Crescent5Sun
6Mon10:289.610:459.84:030.74:221.06:476:17Waning Crescent6Mon
7Tue11:089.711:259.84:460.75:050.96:486:15New Moon7Tue
8Wed11:449.75:240.85:430.76:496:13New Moon8Wed
9Thu12:029.712:169.86:000.86:200.66:506:12New Moon9Thu
10Fri12:369.612:489.86:360.96:580.56:516:10New Moon10Fri
11Sat1:109.51:229.87:131.07:360.56:526:08Waxing Crescent11Sat
12Sun1:469.31:579.87:511.28:170.66:536:07Waxing Crescent12Sun
13Mon2:259.22:379.88:321.49:010.76:556:05Waxing Crescent13Mon
14Tue3:089.03:209.79:161.69:480.86:566:03Waxing Crescent14Tue
15Wed3:558.84:089.610:051.710:390.96:576:02First Quarter15Wed
16Thu4:468.75:019.510:571.811:330.96:586:00First Quarter16Thu
17Fri5:428.75:599.511:531.86:595:59First Quarter17Fri
18Sat6:438.97:029.712:290.812:521.67:005:57First Quarter18Sat
19Sun7:439.38:0410.01:270.61:511.17:025:55Waxing Gibbous19Sun
20Mon8:409.99:0110.52:230.22:470.57:035:54Waxing Gibbous20Mon
21Tue9:3210.69:5610.93:16-0.23:43-0.27:045:52Waxing Gibbous21Tue
22Wed10:2311.210:5011.24:09-0.64:36-0.97:055:51Full Moon22Wed
23Thu11:1311.811:4211.54:59-0.95:28-1.57:065:49Full Moon23Thu
24Fri12:0312.25:49-1.16:19-1.97:085:48Full Moon24Fri
25Sat12:3411.512:5212.46:38-1.17:10-2.07:095:46Waning Gibbous25Sat
26Sun1:2511.312:4212.36:27-0.97:01-1.86:104:45Waning Gibbous26Sun
27Mon1:1811.01:3411.97:19-0.57:55-1.46:114:44Waning Gibbous27Mon
28Tue2:1310.62:2911.48:130.08:50-0.86:134:42Waning Gibbous28Tue
29Wed3:1010.13:2710.89:090.59:47-0.36:144:41Third Quarter29Wed
30Thu4:109.74:2810.210:081.010:460.26:154:40Third Quarter30Thu
31Fri5:139.45:339.811:091.311:460.66:164:38Third Quarter31Fri
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 12:58 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 92% 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 Gibbous (92% 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