Tides Today & Tomorrow in Neponset River, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Neponset River, MA.
Next low tide (tomorrow) : 12:10 am (1.1 ft)
Next high tide : in 1h 01m at 5:46 pm (9.7 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:26 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8444488
Common Questions About Tides

Neponset River, MA Tides - Dec 1976

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:049.47:348.712:451.21:271.26:534:12Waxing Gibbous1Wed
2Thu7:589.58:288.71:391.32:211.06:544:12Waxing Gibbous2Thu
3Fri8:409.79:108.82:271.33:030.76:554:12Waxing Gibbous3Fri
4Sat9:229.99:528.93:091.23:510.56:564:12Full Moon4Sat
5Sun10:0410.010:349.03:511.14:270.36:574:12Full Moon5Sun
6Mon10:4010.111:169.04:331.15:090.16:584:11Full Moon6Mon
7Tue11:1610.211:529.05:091.05:450.16:594:11Full Moon7Tue
8Wed11:5810.25:511.06:270.07:004:11Full Moon8Wed
9Thu12:349.012:3410.16:331.07:030.07:014:11Waning Gibbous9Thu
10Fri1:109.01:1610.07:151.07:450.07:024:11Waning Gibbous10Fri
11Sat1:529.11:589.97:571.08:270.17:034:11Waning Gibbous11Sat
12Sun2:349.22:469.88:451.09:150.27:044:12Third Quarter12Sun
13Mon3:229.33:349.69:390.910:030.27:044:12Third Quarter13Mon
14Tue4:169.64:349.510:330.810:570.27:054:12Third Quarter14Tue
15Wed5:109.95:349.411:330.511:510.27:064:12Third Quarter15Wed
16Thu6:0410.36:349.412:330.17:074:13Waning Crescent16Thu
17Fri6:5810.77:349.612:510.11:33-0.37:074:13Waning Crescent17Fri
18Sat7:5811.18:349.81:45-0.12:33-0.87:084:13Waning Crescent18Sat
19Sun8:5211.59:3410.12:45-0.43:27-1.37:084:14New Moon19Sun
20Mon9:4611.810:2810.33:39-0.64:21-1.77:094:14New Moon20Mon
21Tue10:4011.911:2210.44:33-0.75:15-1.87:094:15New Moon21Tue
22Wed11:3411.85:27-0.76:03-1.77:104:15New Moon22Wed
23Thu12:1610.312:2811.56:21-0.66:57-1.47:104:16Waxing Crescent23Thu
24Fri1:1010.21:2211.17:09-0.37:45-1.07:114:16Waxing Crescent24Fri
25Sat1:5810.02:1010.58:030.18:33-0.57:114:17Waxing Crescent25Sat
26Sun2:469.73:049.88:570.59:270.17:114:17First Quarter26Sun
27Mon3:409.53:589.29:510.910:150.67:124:18First Quarter27Mon
28Tue4:349.24:588.710:511.111:091.17:124:19First Quarter28Tue
29Wed5:289.15:528.411:451.37:124:20First Quarter29Wed
30Thu6:229.16:528.212:031.412:451.37:124:20Waxing Gibbous30Thu
31Fri7:109.17:468.312:571.51:391.27:134:21Waxing Gibbous31Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8444488)

Common Questions About Neponset River, MA Tides

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

Slack tide in Neponset River, MA is approximately 8:58 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 neap phase. Tonight's moon is 52% 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 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 First Quarter (52% illuminated). This places Neponset River, 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