Tides Today & Tomorrow in Neponset River, MA

TIDE TIMES for Monday, August 17, 2026
The tide is currently falling in Neponset River, MA.
Next low tide : in 1h 36m at 9:16 am (0.4 ft)
Next high tide : 3:27 pm (10.2 ft)
Sunset today : 7:42 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8444488
Common Questions About Tides

Neponset River, MA Tides - Dec 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:2310.211:028.94:141.24:540.16:534:13Full Moon1Fri
2Sat11:0210.111:428.84:541.35:330.26:544:12Full Moon2Sat
3Sun11:4110.05:341.46:130.36:554:12Full Moon3Sun
4Mon12:228.712:209.96:141.56:520.46:564:12Waning Gibbous4Mon
5Tue1:028.61:019.86:551.67:320.56:574:12Waning Gibbous5Tue
6Wed1:428.51:429.67:371.78:130.76:584:12Waning Gibbous6Wed
7Thu2:248.42:269.38:211.88:560.96:594:11Waning Gibbous7Thu
8Fri3:078.43:129.19:081.99:411.07:004:11Third Quarter8Fri
9Sat3:538.54:018.99:591.910:281.17:014:11Third Quarter9Sat
10Sun4:408.74:548.810:521.711:161.17:024:11Third Quarter10Sun
11Mon5:279.15:488.811:461.47:024:12Third Quarter11Mon
12Tue6:169.56:438.812:051.012:410.97:034:12Waning Crescent12Tue
13Wed7:0610.07:409.012:570.91:370.47:044:12Waning Crescent13Wed
14Thu7:5710.68:359.21:490.72:32-0.27:054:12Waning Crescent14Thu
15Fri8:4911.19:299.52:420.43:26-0.87:064:12New Moon15Fri
16Sat9:4111.610:239.73:350.14:18-1.37:064:12New Moon16Sat
17Sun10:3311.811:169.84:27-0.25:11-1.57:074:13New Moon17Sun
18Mon11:2711.95:20-0.36:04-1.67:084:13New Moon18Mon
19Tue12:119.912:2211.86:14-0.36:56-1.57:084:13Waxing Crescent19Tue
20Wed1:0710.01:1811.47:09-0.27:49-1.27:094:14Waxing Crescent20Wed
21Thu2:029.92:1510.98:050.08:43-0.87:094:14Waxing Crescent21Thu
22Fri2:589.83:1410.29:040.39:39-0.27:104:15First Quarter22Fri
23Sat3:569.74:169.610:060.610:360.37:104:15First Quarter23Sat
24Sun4:559.65:209.111:100.811:330.87:114:16First Quarter24Sun
25Mon5:529.56:238.612:130.97:114:17First Quarter25Mon
26Tue6:499.57:268.412:291.21:160.87:114:17Waxing Gibbous26Tue
27Wed7:449.58:258.31:251.42:160.77:124:18Waxing Gibbous27Wed
28Thu8:359.69:178.32:181.53:090.67:124:19Waxing Gibbous28Thu
29Fri9:219.710:028.43:071.53:550.47:124:19Waxing Gibbous29Fri
30Sat10:039.810:438.43:511.54:360.37:124:20Full Moon30Sat
31Sun10:439.911:188.64:331.45:140.27:134:21Full Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8444488)

Common Questions About Neponset River, MA Tides

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

Slack tide in Neponset River, MA is approximately 12:21 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 Neponset River, MA?

Neponset River, MA is currently in a transitional phase. Tonight's moon is 27% 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 Neponset River, 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 Neponset River, MA?

Tide predictions for Neponset River, 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 Neponset River, MA?

Tide data for Neponset River, MA is sourced from NOAA Station #8444488. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8444488.

What is the moon phase in Neponset River, MA tonight?

Tonight the moon over Neponset River, MA is Waxing Crescent (27% illuminated). This places Neponset River, 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