Tides Today & Tomorrow in Boston, MA

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Boston, MA.
Next low tide : 9:58 pm (1.3 ft)
Next high tide : in 2h 32m at 3:53 pm (9.3 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8443970
Common Questions About Tides

Boston, MA Tides - May 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:119.410:309.83:550.94:150.95:377:43Waxing Gibbous1Sun
2Mon10:569.411:0810.04:420.64:551.05:367:45Full Moon2Mon
3Tue11:379.311:4410.15:230.45:321.15:357:46Full Moon3Tue
4Wed12:169.26:020.36:091.25:347:47Full Moon4Wed
5Thu12:1910.112:549.16:400.26:461.35:327:48Full Moon5Thu
6Fri12:5510.01:328.97:180.37:241.55:317:49Waning Gibbous6Fri
7Sat1:329.92:118.77:560.58:031.75:307:50Waning Gibbous7Sat
8Sun2:119.82:528.58:370.78:431.95:297:51Waning Gibbous8Sun
9Mon2:529.63:358.39:190.99:272.15:287:52Waning Gibbous9Mon
10Tue3:369.44:218.210:051.110:152.25:267:53Waning Gibbous10Tue
11Wed4:249.35:118.210:541.211:082.25:257:54Third Quarter11Wed
12Thu5:179.26:028.411:461.25:247:55Third Quarter12Thu
13Fri6:129.26:548.812:032.012:371.15:237:57Third Quarter13Fri
14Sat7:089.47:459.31:001.71:290.95:227:58Waning Crescent14Sat
15Sun8:069.68:3610.01:571.12:220.65:217:59Waning Crescent15Sun
16Mon9:029.89:2610.72:530.43:140.35:208:00Waning Crescent16Mon
17Tue9:5710.110:1511.33:48-0.34:040.05:198:01Waning Crescent17Tue
18Wed10:5010.311:0411.84:41-1.04:54-0.25:188:02New Moon18Wed
19Thu11:4310.411:5412.15:33-1.45:45-0.35:178:03New Moon19Thu
20Fri12:3710.46:25-1.66:36-0.25:178:04New Moon20Fri
21Sat12:4712.11:3210.27:18-1.67:290.05:168:05Waxing Crescent21Sat
22Sun1:4111.82:2810.08:12-1.38:230.35:158:05Waxing Crescent22Sun
23Mon2:3711.43:259.79:07-0.89:200.75:148:06Waxing Crescent23Mon
24Tue3:3510.94:269.510:04-0.310:201.15:138:07First Quarter24Tue
25Wed4:3710.35:289.311:040.211:241.45:138:08First Quarter25Wed
26Thu5:429.86:299.312:040.65:128:09First Quarter26Thu
27Fri6:469.47:269.312:291.51:021.05:128:10First Quarter27Fri
28Sat7:499.18:219.51:321.51:581.25:118:11Waxing Gibbous28Sat
29Sun8:488.99:109.62:321.32:501.45:108:12Waxing Gibbous29Sun
30Mon9:418.99:549.83:271.13:371.55:108:13Waxing Gibbous30Mon
31Tue10:288.910:359.94:150.84:201.65:098:13Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8443970)

Common Questions About Boston, MA Tides

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

Slack tide in Boston, MA is approximately 6:55 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 transitional phase. Tonight's moon is 72% 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 shifting between spring and neap.

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 Waning Gibbous (72% illuminated). This places Boston, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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