Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 1h 31m at 6:39 pm (-0.1 ft)
Next high tide (tomorrow) : 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 - May 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:089.311:1810.34:550.55:081.15:387:43New Moon1Fri
2Sat11:499.511:5810.65:380.15:490.95:377:44New Moon2Sat
3Sun12:319.66:21-0.36:320.85:357:46New Moon3Sun
4Mon12:4010.91:149.77:04-0.57:160.75:347:47Waxing Crescent4Mon
5Tue1:2411.12:019.87:51-0.68:030.65:337:48Waxing Crescent5Tue
6Wed2:1211.22:519.88:40-0.78:550.65:317:49Waxing Crescent6Wed
7Thu3:0511.13:469.89:33-0.69:510.75:307:50Waxing Crescent7Thu
8Fri4:0110.94:439.810:29-0.410:500.75:297:51First Quarter8Fri
9Sat5:0110.75:449.911:26-0.311:520.65:287:52First Quarter9Sat
10Sun6:0610.46:4810.212:25-0.15:277:53First Quarter10Sun
11Mon7:1310.27:5010.512:560.51:250.05:267:54Waxing Gibbous11Mon
12Tue8:1810.18:4810.81:590.22:230.15:247:55Waxing Gibbous12Tue
13Wed9:1910.19:4211.12:59-0.13:170.25:237:56Waxing Gibbous13Wed
14Thu10:1510.110:3211.23:55-0.34:100.35:227:57Waxing Gibbous14Thu
15Fri11:0710.011:2011.24:48-0.55:000.55:217:58Full Moon15Fri
16Sat11:569.85:37-0.55:460.65:208:00Full Moon16Sat
17Sun12:0511.112:419.66:22-0.46:300.85:198:01Full Moon17Sun
18Mon12:4810.81:249.47:05-0.27:131.15:188:02Waning Gibbous18Mon
19Tue1:2910.62:069.27:480.07:571.35:188:03Waning Gibbous19Tue
20Wed2:1210.32:499.08:310.38:421.65:178:04Waning Gibbous20Wed
21Thu2:569.93:348.89:170.69:301.85:168:04Waning Gibbous21Thu
22Fri3:429.64:208.710:040.910:211.95:158:05Third Quarter22Fri
23Sat4:309.35:088.710:521.111:132.05:148:06Third Quarter23Sat
24Sun5:229.06:008.711:411.35:148:07Third Quarter24Sun
25Mon6:178.76:538.912:062.012:321.55:138:08Third Quarter25Mon
26Tue7:148.67:449.11:011.81:231.65:128:09Third Quarter26Tue
27Wed8:098.68:329.41:551.62:121.65:128:10Waning Crescent27Wed
28Thu9:008.79:179.82:461.23:001.55:118:11Waning Crescent28Thu
29Fri9:488.910:0110.23:350.83:471.45:108:12Waning Crescent29Fri
30Sat10:359.110:4510.64:230.44:341.25:108:12New Moon30Sat
31Sun11:229.411:3111.05:11-0.15:200.95:098:13New Moon31Sun
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 9:48 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 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