Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 7:18 am (-1.2 ft)
Next high tide (tomorrow) : in 4h 12m at 12:57 am (11.9 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:20 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Feb 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:419.610:178.43:141.63:560.76:584:57Waning Crescent1Sat
2Sun10:229.610:548.53:591.54:350.66:574:58New Moon2Sun
3Mon10:599.611:288.74:401.35:110.56:564:59New Moon3Mon
4Tue11:349.75:191.15:460.46:545:01New Moon4Tue
5Wed12:008.912:099.65:570.96:220.36:535:02New Moon5Wed
6Thu12:339.112:459.66:360.86:590.46:525:03Waxing Crescent6Thu
7Fri1:089.31:239.57:170.77:380.56:515:04Waxing Crescent7Fri
8Sat1:469.52:059.38:010.68:200.66:505:06Waxing Crescent8Sat
9Sun2:279.62:509.18:480.69:050.86:495:07Waxing Crescent9Sun
10Mon3:129.73:408.89:380.69:541.06:475:08First Quarter10Mon
11Tue4:029.74:358.510:320.610:471.26:465:10First Quarter11Tue
12Wed4:589.75:388.411:300.611:451.26:455:11First Quarter12Wed
13Thu6:019.96:448.512:320.36:435:12Waxing Gibbous13Thu
14Fri7:0510.27:478.912:461.01:320.06:425:14Waxing Gibbous14Fri
15Sat8:0610.78:469.41:470.72:31-0.56:415:15Waxing Gibbous15Sat
16Sun9:0411.19:4210.02:460.23:26-1.06:395:16Waxing Gibbous16Sun
17Mon10:0111.510:3510.63:43-0.44:19-1.46:385:17Full Moon17Mon
18Tue10:5411.711:2511.14:37-0.95:09-1.66:365:19Full Moon18Tue
19Wed11:4511.75:29-1.35:57-1.66:355:20Full Moon19Wed
20Thu12:1311.412:3611.56:20-1.46:44-1.46:345:21Waning Gibbous20Thu
21Fri1:0111.51:2611.07:10-1.37:32-1.06:325:23Waning Gibbous21Fri
22Sat1:5011.32:1710.48:02-1.08:21-0.56:315:24Waning Gibbous22Sat
23Sun2:4010.93:109.88:55-0.59:120.26:295:25Third Quarter23Sun
24Mon3:3210.54:059.19:490.010:050.86:285:26Third Quarter24Mon
25Tue4:279.95:058.510:460.511:011.36:265:28Third Quarter25Tue
26Wed5:279.56:108.211:451.011:591.76:245:29Third Quarter26Wed
27Thu6:319.27:158.012:461.26:235:30Waning Crescent27Thu
28Fri7:319.18:128.112:591.91:451.26:215:31Waning Crescent28Fri
29Sat8:259.29:018.31:541.82:371.26:205:32Waning Crescent29Sat
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 2% 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 New Moon (2% 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