Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in Chelsea, MA.
Next low tide (tomorrow) : 12:40 am (0.9 ft)
Next high tide : in 6h 15m at 6:32 pm (10.0 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:07 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Jul 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:248.99:3810.73:130.43:231.25:108:25Waning Crescent1Thu
2Fri10:199.210:3111.24:07-0.14:160.95:118:24New Moon2Fri
3Sat11:129.511:2411.65:00-0.65:090.65:128:24New Moon3Sat
4Sun12:059.95:52-1.06:020.25:128:24New Moon4Sun
5Mon12:1711.912:5710.36:43-1.36:55-0.15:138:24New Moon5Mon
6Tue1:1012.01:4810.67:33-1.47:49-0.35:138:23Waxing Crescent6Tue
7Wed2:0411.92:4110.88:24-1.38:44-0.35:148:23Waxing Crescent7Wed
8Thu2:5911.53:3510.99:17-1.19:41-0.25:158:23Waxing Crescent8Thu
9Fri3:5611.04:3010.910:10-0.710:40-0.15:158:22First Quarter9Fri
10Sat4:5410.45:2610.811:03-0.211:390.25:168:22First Quarter10Sat
11Sun5:559.86:2510.611:580.45:178:21First Quarter11Sun
12Mon7:009.27:2510.412:400.412:550.95:188:21Waxing Gibbous12Mon
13Tue8:058.98:2410.21:420.61:531.35:198:20Waxing Gibbous13Tue
14Wed9:058.79:1810.12:420.72:481.65:198:20Waxing Gibbous14Wed
15Thu10:008.610:0810.03:380.83:411.85:208:19Waxing Gibbous15Thu
16Fri10:508.510:559.94:290.84:291.85:218:18Full Moon16Fri
17Sat11:348.511:369.95:140.85:141.85:228:18Full Moon17Sat
18Sun12:138.55:540.85:551.85:238:17Full Moon18Sun
19Mon12:149.912:488.66:300.76:351.75:248:16Full Moon19Mon
20Tue12:509.81:228.77:070.77:141.65:248:16Full Moon20Tue
21Wed1:269.81:568.97:430.77:541.55:258:15Waning Gibbous21Wed
22Thu2:039.72:339.18:220.78:371.45:268:14Waning Gibbous22Thu
23Fri2:439.53:129.29:020.89:221.35:278:13Waning Gibbous23Fri
24Sat3:269.33:539.49:441.010:101.35:288:12Waning Gibbous24Sat
25Sun4:119.14:379.510:291.211:001.25:298:11Third Quarter25Sun
26Mon5:018.85:269.611:161.411:531.15:308:10Third Quarter26Mon
27Tue5:568.66:209.712:081.55:318:09Third Quarter27Tue
28Wed6:578.47:1810.012:501.01:031.65:328:08Waning Crescent28Wed
29Thu8:008.58:1810.31:490.72:011.55:338:07Waning Crescent29Thu
30Fri9:008.89:1610.82:480.32:581.25:348:06Waning Crescent30Fri
31Sat9:589.210:1311.33:45-0.23:550.75:358:05Waning Crescent31Sat
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 9:36 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 neap phase. Tonight's moon is 58% 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 minimum.

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 First Quarter (58% illuminated). This places Chelsea, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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