Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Friday, June 26, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 2h 43m at 3:32 pm (1.9 ft)
Next high tide : 9:58 pm (9.8 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - Dec 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:5210.26:1710.111:570.36:534:12Third Quarter1Sat
2Sun6:5510.47:2210.012:27-0.21:010.26:544:12Waning Crescent2Sun
3Mon7:5310.78:2210.01:250.02:01-0.16:554:12Waning Crescent3Mon
4Tue8:4610.89:189.92:190.12:57-0.36:564:11Waning Crescent4Tue
5Wed9:3510.910:089.83:110.33:48-0.46:574:11New Moon5Wed
6Thu10:2110.810:549.63:590.54:35-0.46:584:11New Moon6Thu
7Fri11:0310.711:379.44:430.75:17-0.36:594:11New Moon7Fri
8Sat11:4210.55:250.95:57-0.27:004:11New Moon8Sat
9Sun12:169.212:2010.26:061.16:370.07:014:11Waxing Crescent9Sun
10Mon12:559.01:0010.06:471.37:190.27:024:11Waxing Crescent10Mon
11Tue1:368.81:419.77:301.58:030.47:034:11Waxing Crescent11Tue
12Wed2:188.72:259.58:171.68:490.67:044:11Waxing Crescent12Wed
13Thu3:038.63:129.29:061.89:360.87:044:11First Quarter13Thu
14Fri3:518.64:028.99:571.810:251.07:054:11First Quarter14Fri
15Sat4:418.64:568.710:501.811:161.17:064:12First Quarter15Sat
16Sun5:348.85:548.611:451.67:074:12First Quarter16Sun
17Mon6:279.06:508.612:081.212:391.47:074:12Waxing Gibbous17Mon
18Tue7:179.47:438.812:581.11:320.97:084:13Waxing Gibbous18Tue
19Wed8:049.98:349.01:481.02:230.47:084:13Waxing Gibbous19Wed
20Thu8:5110.49:239.32:360.83:12-0.17:094:14Waxing Gibbous20Thu
21Fri9:3710.910:129.73:250.54:01-0.77:104:14Full Moon21Fri
22Sat10:2511.311:0110.04:130.24:50-1.27:104:14Full Moon22Sat
23Sun11:1311.711:5010.25:02-0.15:38-1.57:104:15Full Moon23Sun
24Mon12:0311.95:51-0.36:28-1.77:114:16Waning Gibbous24Mon
25Tue12:4110.412:5511.96:42-0.47:19-1.77:114:16Waning Gibbous25Tue
26Wed1:3310.51:4911.67:36-0.48:12-1.57:124:17Waning Gibbous26Wed
27Thu2:2910.52:4611.38:33-0.39:08-1.27:124:18Third Quarter27Thu
28Fri3:2610.53:4610.89:33-0.210:04-0.87:124:18Third Quarter28Fri
29Sat4:2510.54:4910.210:340.011:02-0.47:124:19Third Quarter29Sat
30Sun5:2810.45:569.811:370.17:134:20Third Quarter30Sun
31Mon6:3010.47:029.512:010.012:400.17:134:21Waning Crescent31Mon
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 6:45 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 90% 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 (90% 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