Tides Today & Tomorrow in Chelsea, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently falling in Chelsea, MA.
Next low tide : in 3h 12m at 11:38 am (1.0 ft)
Next high tide : 5:52 pm (10.3 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:42 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8443725
Common Questions About Tides

Chelsea, MA Tides - May 2083

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:1610.511:3111.85:03-0.95:19-0.15:387:43Full Moon1Sat
2Sun12:0710.65:54-1.46:08-0.35:377:45Full Moon2Sun
3Mon12:2012.112:5810.66:44-1.76:57-0.35:357:46Full Moon3Mon
4Tue1:1112.21:5010.57:35-1.77:49-0.15:347:47Waning Gibbous4Tue
5Wed2:0412.02:4510.38:29-1.48:430.25:337:48Waning Gibbous5Wed
6Thu3:0011.73:4310.09:25-1.09:410.55:327:49Waning Gibbous6Thu
7Fri3:5911.24:439.810:23-0.510:420.85:307:50Third Quarter7Fri
8Sat5:0010.65:469.611:220.011:441.15:297:51Third Quarter8Sat
9Sun6:0610.16:519.612:220.45:287:52Third Quarter9Sun
10Mon7:139.77:529.712:491.21:210.75:277:53Third Quarter10Mon
11Tue8:169.58:479.81:521.22:170.95:267:54Waning Crescent11Tue
12Wed9:139.39:359.92:511.13:081.15:257:55Waning Crescent12Wed
13Thu10:049.210:189.93:430.93:541.35:247:56Waning Crescent13Thu
14Fri10:499.010:589.94:290.84:361.55:237:58Waning Crescent14Fri
15Sat11:308.911:349.95:100.75:161.65:227:59New Moon15Sat
16Sun12:078.85:490.65:541.75:218:00New Moon16Sun
17Mon12:099.912:438.76:260.66:321.85:208:01New Moon17Mon
18Tue12:439.91:188.77:040.67:101.85:198:02New Moon18Tue
19Wed1:209.81:568.67:440.77:511.95:188:03Waxing Crescent19Wed
20Thu1:599.82:368.68:250.78:341.95:178:04Waxing Crescent20Thu
21Fri2:419.73:208.69:100.89:222.05:168:05Waxing Crescent21Fri
22Sat3:279.64:078.79:570.810:122.05:158:06Waxing Crescent22Sat
23Sun4:169.54:568.810:460.911:051.95:158:06First Quarter23Sun
24Mon5:099.45:499.111:360.95:148:07First Quarter24Mon
25Tue6:069.36:439.412:011.612:290.95:138:08First Quarter25Tue
26Wed7:079.47:3810.012:581.21:220.85:128:09Waxing Gibbous26Wed
27Thu8:069.58:3210.51:560.72:150.75:128:10Waxing Gibbous27Thu
28Fri9:049.79:2411.12:520.13:080.55:118:11Waxing Gibbous28Fri
29Sat10:009.910:1611.63:47-0.54:010.35:118:12Waxing Gibbous29Sat
30Sun10:5510.111:0912.04:42-1.04:540.15:108:13Full Moon30Sun
31Mon11:4910.35:35-1.45:460.05:108:13Full Moon31Mon
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 2:45 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 neap phase. Tonight's moon is 44% 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 Third Quarter (44% 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