Tides Today & Tomorrow in Block Island, RI

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently rising in Block Island, RI.

Next low tide (tomorrow) : 4:01 am (0.3 ft)
Next high tide : in 4h 14m at 9:33 pm (3.2 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:17 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8459338
Common Questions About Tides

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East Hampton Harbormaster

Block Island, RI Tides - Jun 2002

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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	Sat	12:42	2.9	1:15	2.5	7:18	0.5	6:55	0.7	5:15	8:12		1	Sat
2	Sun	1:34	2.7	2:09	2.5	8:09	0.5	8:22	0.8	5:15	8:13		2	Sun
3	Mon	2:26	2.5	3:04	2.5	8:55	0.6	9:29	0.8	5:14	8:14		3	Mon
4	Tue	3:21	2.4	4:00	2.6	9:37	0.6	10:28	0.8	5:14	8:14		4	Tue
5	Wed	4:19	2.4	4:51	2.7	10:16	0.5	11:19	0.6	5:14	8:15		5	Wed
6	Thu	5:10	2.4	5:34	2.9	10:52	0.5			5:13	8:16		6	Thu
7	Fri	5:54	2.4	6:11	3.1	12:05	0.5	11:28 AM	0.4	5:13	8:16		7	Fri
8	Sat	6:34	2.5	6:47	3.3	12:49	0.3	12:05	0.3	5:13	8:17		8	Sat
9	Sun	7:13	2.6	7:25	3.4	1:32	0.2	12:43	0.2	5:13	8:17		9	Sun
10	Mon	7:53	2.7	8:05	3.5	2:13	0.1	1:24	0.1	5:13	8:18		10	Mon
11	Tue	8:35	2.8	8:48	3.6	2:52	0.1	2:06	0.0	5:12	8:18		11	Tue
12	Wed	9:19	2.8	9:32	3.6	3:30	0.1	2:50	0.0	5:12	8:19		12	Wed
13	Thu	10:05	2.9	10:19	3.5	4:07	0.1	3:35	0.0	5:12	8:19		13	Thu
14	Fri	10:55	2.9	11:09	3.4	4:48	0.1	4:23	0.1	5:12	8:20		14	Fri
15	Sat	11:48	2.9			5:35	0.2	5:18	0.2	5:12	8:20		15	Sat
16	Sun	12:03	3.3	12:45	3.0	6:32	0.2	6:24	0.3	5:12	8:21		16	Sun
17	Mon	12:59	3.2	1:43	3.1	7:31	0.2	7:46	0.4	5:12	8:21		17	Mon
18	Tue	1:57	3.0	2:43	3.2	8:26	0.1	9:12	0.4	5:13	8:21		18	Tue
19	Wed	2:59	2.9	3:46	3.4	9:21	0.1	10:27	0.3	5:13	8:22		19	Wed
20	Thu	4:05	2.8	4:49	3.6	10:17	0.0	11:30	0.1	5:13	8:22		20	Thu
21	Fri	5:10	2.8	5:47	3.7	11:10	0.0			5:13	8:22		21	Fri
22	Sat	6:09	2.9	6:40	3.8	12:26	0.0	12:00	0.0	5:13	8:22		22	Sat
23	Sun	7:02	2.9	7:31	3.9	1:19	-0.1	12:49	-0.1	5:14	8:22		23	Sun
24	Mon	7:53	3.0	8:20	3.8	2:09	-0.1	1:38	0.0	5:14	8:23		24	Mon
25	Tue	8:42	3.0	9:07	3.7	2:55	-0.1	2:25	0.0	5:14	8:23		25	Tue
26	Wed	9:29	3.0	9:52	3.5	3:37	0.0	3:08	0.1	5:15	8:23		26	Wed
27	Thu	10:16	2.9	10:37	3.3	4:18	0.1	3:49	0.2	5:15	8:23		27	Thu
28	Fri	11:02	2.8	11:21	3.1	4:57	0.2	4:29	0.4	5:15	8:23		28	Fri
29	Sat	11:49	2.7			5:37	0.3	5:13	0.6	5:16	8:23		29	Sat
30	Sun	12:05	2.9	12:37	2.6	6:18	0.4	6:06	0.7	5:16	8:23		30	Sun
Date		High Tide				Low Tide				Sun		Moon	Date
Date		AM	ft	PM	ft	AM	ft	PM	ft	Rise	Set	Moon	Date

Tidal Data Source: (8459338)

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What time does the tide turn (slack tide) in Block Island, RI today?

Slack tide in Block Island, RI is approximately 12:47 am — 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 Block Island, RI?

Block Island, RI is currently in a spring phase. Tonight's moon is 97% 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 maximum.

What datum are Block Island, RI 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 Block Island, RI?

Tide predictions for Block Island, RI 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 Block Island, RI?

Tide data for Block Island, RI is sourced from NOAA Station #8459338. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8459338.

What is the moon phase in Block Island, RI tonight?

Tonight the moon over Block Island, RI is Full Moon (97% illuminated). This places Block Island, RI in a spring tide cycle, so tidal ranges are near their weekly maximum 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

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