Tides Today & Tomorrow in Neponset River, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Neponset River, MA.

Next low tide : in 5h 07m at 11:31 am (1.1 ft)
Next high tide : 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
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Neponset River, MA Tides - Jul 2026

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Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date
1	Wed	12:36	10.1	1:17	8.8	7:06	0.5	7:09	1.6	5:11	8:24		1	Wed
2	Thu	1:16	10.1	1:55	8.9	7:44	0.5	7:50	1.5	5:12	8:24		2	Thu
3	Fri	1:55	10.0	2:33	9.0	8:22	0.4	8:32	1.5	5:12	8:24		3	Fri
4	Sat	2:35	9.9	3:11	9.1	9:01	0.5	9:15	1.4	5:13	8:24		4	Sat
5	Sun	3:17	9.8	3:51	9.3	9:41	0.5	10:01	1.3	5:13	8:23		5	Sun
6	Mon	4:02	9.6	4:33	9.6	10:24	0.6	10:50	1.2	5:14	8:23		6	Mon
7	Tue	4:51	9.4	5:20	9.8	11:11	0.7	11:44	1.0	5:15	8:23		7	Tue
8	Wed	5:44	9.2	6:09	10.1			12:00	0.9	5:15	8:22		8	Wed
9	Thu	6:40	9.1	7:02	10.4	12:40	0.7	12:53	0.9	5:16	8:22		9	Thu
10	Fri	7:40	9.0	7:59	10.8	1:38	0.4	1:50	0.9	5:17	8:21		10	Fri
11	Sat	8:42	9.1	8:59	11.1	2:39	0.1	2:49	0.8	5:18	8:21		11	Sat
12	Sun	9:44	9.3	9:58	11.4	3:40	-0.3	3:49	0.6	5:18	8:20		12	Sun
13	Mon	10:43	9.5	10:55	11.7	4:38	-0.7	4:46	0.3	5:19	8:20		13	Mon
14	Tue	11:41	9.8	11:52	11.8	5:34	-1.0	5:43	0.1	5:20	8:19		14	Tue
15	Wed			12:37	10.1	6:27	-1.2	6:38	-0.1	5:21	8:19		15	Wed
16	Thu	12:48	11.7	1:31	10.2	7:20	-1.1	7:33	-0.1	5:22	8:18		16	Thu
17	Fri	1:44	11.4	2:23	10.3	8:10	-0.9	8:27	0.0	5:22	8:17		17	Fri
18	Sat	2:38	11.0	3:13	10.3	9:00	-0.5	9:21	0.3	5:23	8:17		18	Sat
19	Sun	3:31	10.4	4:04	10.2	9:49	0.0	10:16	0.6	5:24	8:16		19	Sun
20	Mon	4:25	9.8	4:55	10.0	10:40	0.6	11:13	0.9	5:25	8:15		20	Mon
21	Tue	5:21	9.2	5:46	9.7	11:31	1.1			5:26	8:14		21	Tue
22	Wed	6:19	8.7	6:39	9.5	12:10	1.1	12:23	1.6	5:27	8:13		22	Wed
23	Thu	7:17	8.3	7:32	9.4	1:08	1.3	1:16	2.0	5:28	8:13		23	Thu
24	Fri	8:16	8.1	8:26	9.4	2:06	1.4	2:10	2.2	5:29	8:12		24	Fri
25	Sat	9:13	8.1	9:19	9.5	3:04	1.4	3:03	2.2	5:30	8:11		25	Sat
26	Sun	10:04	8.2	10:07	9.7	3:56	1.2	3:53	2.1	5:31	8:10		26	Sun
27	Mon	10:49	8.4	10:51	9.8	4:42	1.0	4:39	1.9	5:32	8:09		27	Mon
28	Tue	11:31	8.6	11:32	10.0	5:22	0.8	5:22	1.6	5:33	8:08		28	Tue
29	Wed			12:10	8.8	6:01	0.6	6:03	1.4	5:34	8:07		29	Wed
30	Thu	12:11	10.1	12:47	9.0	6:38	0.4	6:44	1.2	5:35	8:06		30	Thu
31	Fri	12:51	10.2	1:24	9.3	7:15	0.3	7:25	1.0	5:36	8:04		31	Fri
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8444488)

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When is the lowest tide this week in Neponset River, MA?

The lowest tide this week in Neponset River, MA is 0.8 ft on Tuesday, Jul 28 at 5:22 am.

When is the highest tide this week in Neponset River, MA?

The highest tide this week in Neponset River, MA is 9.8 ft on Monday, Jul 27 at 10:51 pm — worth noting for launching your boat and being alert for possible high tide flooding.

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

Slack tide in Neponset River, MA is approximately 2:38 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 time is high tide in Neponset River, MA today?

High tides in Neponset River, MA today: 5:21 am (9.2 ft), 5:46 pm (9.7 ft). The 5:46 pm high of 9.7 ft is notably higher than the other — known as diurnal inequality, common on coasts influenced by lunar declination.

What time is low tide in Neponset River, MA today?

Low tides in Neponset River, MA today: 11:31 am (1.1 ft).

What is the tidal range in Neponset River, MA today?

Today's tidal range in Neponset River, MA is 8.6 ft — the difference between the day's highest and lowest water level. This month's average daily range is about 9.9 ft, so today's swing is below-average.

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.

What type of tides does Neponset River, MA have — semi-diurnal, diurnal, or mixed?

Neponset River, MA has mixed tides — two high tides and two low tides per day with noticeably different heights — common on the U.S. West Coast.

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

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