Tides Today & Tomorrow in Boston, MA

TIDE TIMES for Thursday, August 6, 2026
The tide is currently rising in Boston, MA.
Next low tide (tomorrow) : 12:13 am (0.5 ft)
Next high tide : in 5h 40m at 5:41 pm (10.4 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:41 am
Moon phase : Third Quarter (44% illuminated)
Tide Station Location : Station #8443970
Common Questions About Tides

Boston, MA Tides - Mar 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:379.48:198.41:211.52:060.66:195:33Waning Crescent1Mon
2Tue8:3210.09:099.12:171.02:570.06:185:34Waning Crescent2Tue
3Wed9:2410.59:559.83:100.33:45-0.66:165:35New Moon3Wed
4Thu10:1211.010:4010.54:01-0.54:31-1.16:145:36New Moon4Thu
5Fri11:0111.211:2611.04:50-1.15:16-1.46:135:37New Moon5Fri
6Sat11:5011.35:39-1.66:03-1.56:115:39New Moon6Sat
7Sun12:1311.412:4011.16:29-1.86:50-1.36:095:40Waxing Crescent7Sun
8Mon1:0111.51:3110.77:20-1.77:38-1.06:085:41Waxing Crescent8Mon
9Tue1:5111.42:2510.28:13-1.38:30-0.46:065:42Waxing Crescent9Tue
10Wed2:4311.03:229.59:09-0.89:250.26:045:43First Quarter10Wed
11Thu3:4110.54:268.910:10-0.210:260.86:035:45First Quarter11Thu
12Fri4:459.95:348.511:150.311:311.26:015:46First Quarter12Fri
13Sat5:539.66:448.412:230.65:595:47Waxing Gibbous13Sat
14Sun7:039.47:528.512:371.41:300.75:575:48Waxing Gibbous14Sun
15Mon8:109.58:508.81:441.32:320.65:565:49Waxing Gibbous15Mon
16Tue9:069.69:379.12:441.03:220.45:545:50Waxing Gibbous16Tue
17Wed9:539.710:189.43:350.74:040.35:525:52Full Moon17Wed
18Thu10:349.710:549.64:180.44:420.35:515:53Full Moon18Thu
19Fri11:139.711:289.74:580.25:170.45:495:54Full Moon19Fri
20Sat11:509.65:360.15:520.55:475:55Full Moon20Sat
21Sun12:029.812:269.46:140.16:280.65:455:56Waning Gibbous21Sun
22Mon12:379.81:049.26:520.27:040.85:445:57Waning Gibbous22Mon
23Tue1:139.71:428.97:300.47:421.15:425:58Waning Gibbous23Tue
24Wed1:519.52:238.68:110.68:221.45:406:00Waning Gibbous24Wed
25Thu2:319.43:078.28:560.99:061.75:386:01Third Quarter25Thu
26Fri3:179.23:578.09:451.19:571.95:376:02Third Quarter26Fri
27Sat4:089.14:517.910:391.210:521.95:356:03Third Quarter27Sat
28Sun5:049.15:488.011:351.211:501.85:336:04Third Quarter28Sun
29Mon6:029.26:458.412:311.05:316:05Waning Crescent29Mon
30Tue7:029.67:419.012:491.41:280.65:306:06Waning Crescent30Tue
31Wed8:0110.08:349.71:480.72:210.15:286:07Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443970)

Common Questions About Boston, MA Tides

Show All
What time does the tide turn (slack tide) in Boston, MA today?

Slack tide in Boston, MA is approximately 8:57 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 Boston, MA?

Boston, 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 Boston, 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 Boston, MA?

Tide predictions for Boston, 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 Boston, MA?

Tide data for Boston, MA is sourced from NOAA Station #8443970. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8443970.

What is the moon phase in Boston, MA tonight?

Tonight the moon over Boston, MA is Third Quarter (44% illuminated). This places Boston, 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