Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 35m at 5:41 am (0.9 ft)
Next high tide : 12:00 pm (8.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:10 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - May 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:3211.24:1210.010:00-0.810:190.55:377:44First Quarter1Thu
2Fri4:2911.05:129.910:57-0.611:190.65:367:45First Quarter2Fri
3Sat5:3210.76:179.911:57-0.45:357:46First Quarter3Sat
4Sun6:3910.57:2310.112:220.612:58-0.25:347:47First Quarter4Sun
5Mon7:4710.48:2510.41:260.51:59-0.25:327:48Waxing Gibbous5Mon
6Tue8:5010.59:2210.72:290.32:57-0.15:317:49Waxing Gibbous6Tue
7Wed9:4910.510:1510.93:280.03:51-0.15:307:50Waxing Gibbous7Wed
8Thu10:4310.411:0411.14:23-0.34:420.05:297:51Full Moon8Thu
9Fri11:3310.311:4911.15:13-0.45:290.25:277:53Full Moon9Fri
10Sat12:1910.16:00-0.56:120.45:267:54Full Moon10Sat
11Sun12:3010.91:029.96:43-0.46:540.65:257:55Full Moon11Sun
12Mon1:1010.71:439.67:24-0.27:360.95:247:56Waning Gibbous12Mon
13Tue1:5010.42:249.38:070.18:191.35:237:57Waning Gibbous13Tue
14Wed2:3110.13:079.18:500.39:041.55:227:58Waning Gibbous14Wed
15Thu3:159.83:528.99:370.69:521.85:217:59Waning Gibbous15Thu
16Fri4:019.54:408.710:250.910:432.05:208:00Third Quarter16Fri
17Sat4:519.25:328.611:151.111:362.15:198:01Third Quarter17Sat
18Sun5:459.06:268.612:061.35:188:02Third Quarter18Sun
19Mon6:428.97:218.812:302.012:591.35:178:03Third Quarter19Mon
20Tue7:398.98:129.11:261.81:511.35:178:04Waning Crescent20Tue
21Wed8:339.08:599.52:191.52:401.25:168:05Waning Crescent21Wed
22Thu9:229.29:4310.03:091.13:271.05:158:06Waning Crescent22Thu
23Fri10:099.510:2610.43:580.64:140.85:148:07Waning Crescent23Fri
24Sat10:569.711:1010.94:450.14:590.65:138:08New Moon24Sat
25Sun11:4210.011:5511.35:32-0.55:450.35:138:09New Moon25Sun
26Mon12:2910.26:18-0.96:310.15:128:09New Moon26Mon
27Tue12:4111.61:1710.47:05-1.27:190.05:118:10Waxing Crescent27Tue
28Wed1:2911.82:0810.57:55-1.38:100.05:118:11Waxing Crescent28Wed
29Thu2:2111.83:0210.58:47-1.39:050.15:108:12Waxing Crescent29Thu
30Fri3:1711.63:5810.49:42-1.110:030.25:108:13Waxing Crescent30Fri
31Sat4:1511.34:5710.410:39-0.911:030.35:098:14First Quarter31Sat
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 8:50 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 100% 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 (100% 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