Block Island (Old Harbor) tide chart
Rhode Island · New Shoreham · NOAA station 8459338 · times in local time (EDT)
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Tides today, Sunday, October 11
- Low 2:03 AM -0.1 ft
- High 8:35 AM 3.8 ft
- Low 2:50 PM 0.0 ft
- High 8:51 PM 3.1 ft
Were today's predicted times right where you were?
Sunrise 6:54 AM · Sunset 6:13 PM · New moon (0%)
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Fishing forecast
Hour by hour at Block Island (Old Harbor)Best times
6:00 PM–7:00 PM and 1:00 PM–2:00 PM
New moon (0% lit)
Rain radar
Biting around here in October
- Striped bass In seasonMoving water at dawn and dusk; outgoing tide at inlets and river mouths
- Bluefish In seasonLook for birds working bait on a moving tide
- Tautog In seasonTight to rocks and jetties around slack water
- Scup (porgy) In seasonHard bottom, any tide
General seasonal guide for New England. Seasons, sizes and limits vary, so check your state rules before keeping fish.
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Weather and conditions at Block Island (Old Harbor)
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Marine forecast: Block Island Sound
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- Nearest weather buoy Block Island, RI (154) (27 mi): waves, wind and water temperature
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.550 MHz WX1 KHB47, New London, CT (36 mi)
- 162.400 MHz WX2 WXJ39, Providence, RI (44 mi)
To get alerts on a weather alert radio, program county code 044009 (Washington).
VHF marine channels
- Ch 16 Distress, safety and calling
- Ch 9 Boater-to-boater calling
- Ch 22A Coast Guard safety broadcasts
- Ch 13 Bridge-to-bridge (big ships, drawbridges)
- Ch 68, 69, 71, 72, 78A Recreational chat
Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.
Live readings from NOAA and the National Weather Service, loaded when you open this page.
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Recent reports
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Reports are from visitors and may be wrong. Inappropriate ones are removed.
Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | L 2:03 AM -0.1 ftH 8:35 AM 3.8 ftL 2:50 PM 0.0 ftH 8:51 PM 3.1 ft | 6:54 AM / 6:13 PM | New moon (0%) |
| Mon Oct 12 | L 2:30 AM 0.0 ftH 9:14 AM 3.6 ftL 3:23 PM 0.1 ftH 9:30 PM 3.0 ft | 6:55 AM / 6:12 PM | New moon (2%) |
| Tue Oct 13 | L 2:58 AM 0.1 ftH 9:51 AM 3.4 ftL 3:54 PM 0.3 ftH 10:08 PM 2.8 ft | 6:56 AM / 6:10 PM | Waxing crescent (6%) |
| Wed Oct 14 | L 3:30 AM 0.3 ftH 10:28 AM 3.2 ftL 4:27 PM 0.5 ftH 10:48 PM 2.6 ft | 6:57 AM / 6:08 PM | Waxing crescent (12%) |
| Thu Oct 15 | L 4:05 AM 0.5 ftH 11:08 AM 2.9 ftL 5:06 PM 0.6 ftH 11:32 PM 2.4 ft | 6:58 AM / 6:07 PM | Waxing crescent (19%) |
| Fri Oct 16 | L 4:45 AM 0.7 ftH 11:53 AM 2.7 ftL 6:01 PM 0.8 ft | 6:59 AM / 6:05 PM | Waxing crescent (28%) |
| Sat Oct 17 | H 12:22 AM 2.2 ftL 5:33 AM 0.8 ftH 12:47 PM 2.6 ftL 7:48 PM 0.9 ft | 7:00 AM / 6:04 PM | First quarter (38%) |
Tidal currents near Block Island (Old Harbor)
From NOAA's current predictions for Old Harbor Pt., 0.5 mile southeast of, 2.0 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the NNW (336°) and the ebb toward the S (175°). The strongest current this week is 0.5 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Ebb 3:30 AM 0.4 knSlack 6:38 AMFlood 9:14 AM 0.4 knSlack 12:05 PMEbb 3:51 PM 0.5 knSlack 7:15 PMFlood 9:46 PM 0.3 kn |
| Mon Oct 12 | Slack 12:38 AMEbb 4:12 AM 0.4 knSlack 7:20 AMFlood 9:53 AM 0.4 knSlack 12:46 PMEbb 4:33 PM 0.5 knSlack 7:58 PMFlood 10:26 PM 0.3 kn |
| Tue Oct 13 | Slack 1:20 AMEbb 4:54 AM 0.4 knSlack 8:03 AMFlood 10:31 AM 0.3 knSlack 1:26 PMEbb 5:14 PM 0.4 knSlack 8:41 PMFlood 11:05 PM 0.3 kn |
| Wed Oct 14 | Slack 2:01 AMEbb 5:36 AM 0.4 knSlack 8:46 AMFlood 11:10 AM 0.3 knSlack 2:06 PMEbb 5:55 PM 0.4 knSlack 9:24 PMFlood 11:46 PM 0.3 kn |
| Thu Oct 15 | Slack 2:43 AMEbb 6:18 AM 0.3 knSlack 9:32 AMFlood 11:51 AM 0.3 knSlack 2:48 PMEbb 6:36 PM 0.4 knSlack 10:09 PM |
| Fri Oct 16 | Flood 12:29 AM 0.2 knSlack 3:26 AMEbb 7:02 AM 0.3 knSlack 10:19 AMFlood 12:36 PM 0.2 knSlack 3:31 PMEbb 7:20 PM 0.3 knSlack 10:56 PM |
| Sat Oct 17 | Flood 1:15 AM 0.2 knSlack 4:11 AMEbb 7:49 AM 0.3 knSlack 11:10 AMFlood 1:24 PM 0.2 knSlack 4:18 PMEbb 8:08 PM 0.3 knSlack 11:45 PM |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Block Island (Old Harbor)
The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.
| Day | Bite score | Best times | Major periods | Minor periods |
|---|---|---|---|---|
| Sun Oct 11 | 92 · Excellent | 6:00 PM–7:00 PM, 1:00 PM–2:00 PM | 11:58 PM–1:58 AM, 12:20 PM–2:20 PM | 7:37 AM–8:37 AM, 5:55 PM–6:55 PM |
| Mon Oct 12 | 75 · Excellent | 6:00 PM–7:00 PM, 1:00 PM–2:00 PM | 12:43 AM–2:43 AM, 1:07 PM–3:07 PM | 8:43 AM–9:43 AM, 6:23 PM–7:23 PM |
| Tue Oct 13 | 54 · Fair | 2:00 PM–3:00 PM, 7:00 PM–8:00 PM | 1:31 AM–3:31 AM, 1:55 PM–3:55 PM | 9:48 AM–10:48 AM, 6:56 PM–7:56 PM |
| Wed Oct 14 | 33 · Slow | 3:00 PM–4:00 PM | 2:20 AM–4:20 AM, 2:45 PM–4:45 PM | 10:51 AM–11:51 AM, 7:36 PM–8:36 PM |
| Thu Oct 15 | 21 · Slow | 3:10 AM–5:10 AM, 3:35 PM–5:35 PM | 11:47 AM–12:47 PM, 8:23 PM–9:23 PM | |
| Fri Oct 16 | 23 · Slow | 5:00 PM–6:00 PM | 4:01 AM–6:01 AM, 4:26 PM–6:26 PM | 12:37 PM–1:37 PM, 9:17 PM–10:17 PM |
| Sat Oct 17 | 35 · Fair | 6:00 PM–7:00 PM | 4:51 AM–6:51 AM, 5:16 PM–7:16 PM | 1:19 PM–2:19 PM, 10:17 PM–11:17 PM |
A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 0.0 ft at 2:50 PM on Sunday, October 11
- 0.0 ft at 1:03 PM on Saturday, October 24
- 0.1 ft at 3:23 PM on Monday, October 12
- 0.2 ft at 12:21 PM on Friday, October 23
- 0.3 ft at 3:54 PM on Tuesday, October 13
- 0.5 ft at 4:27 PM on Wednesday, October 14
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | L 2:03 AM -0.1 ftH 8:35 AM 3.8 ftL 2:50 PM 0.0 ftH 8:51 PM 3.1 ft | 6:54 AM / 6:13 PM |
| Mon Oct 12 | L 2:30 AM 0.0 ftH 9:14 AM 3.6 ftL 3:23 PM 0.1 ftH 9:30 PM 3.0 ft | 6:55 AM / 6:12 PM |
| Tue Oct 13 | L 2:58 AM 0.1 ftH 9:51 AM 3.4 ftL 3:54 PM 0.3 ftH 10:08 PM 2.8 ft | 6:56 AM / 6:10 PM |
| Wed Oct 14 | L 3:30 AM 0.3 ftH 10:28 AM 3.2 ftL 4:27 PM 0.5 ftH 10:48 PM 2.6 ft | 6:57 AM / 6:08 PM |
| Thu Oct 15 | L 4:05 AM 0.5 ftH 11:08 AM 2.9 ftL 5:06 PM 0.6 ftH 11:32 PM 2.4 ft | 6:58 AM / 6:07 PM |
| Fri Oct 16 | L 4:45 AM 0.7 ftH 11:53 AM 2.7 ftL 6:01 PM 0.8 ft | 6:59 AM / 6:05 PM |
| Sat Oct 17 | H 12:22 AM 2.2 ftL 5:33 AM 0.8 ftH 12:47 PM 2.6 ftL 7:48 PM 0.9 ft | 7:00 AM / 6:04 PM |
| Sun Oct 18 | H 1:18 AM 2.1 ftL 6:35 AM 1.0 ftH 1:47 PM 2.5 ftL 9:02 PM 0.9 ft | 7:01 AM / 6:02 PM |
| Mon Oct 19 | H 2:19 AM 2.1 ftL 8:02 AM 1.0 ftH 2:52 PM 2.5 ftL 9:57 PM 0.8 ft | 7:03 AM / 6:01 PM |
| Tue Oct 20 | H 3:26 AM 2.2 ftL 9:48 AM 0.9 ftH 3:58 PM 2.5 ftL 10:40 PM 0.7 ft | 7:04 AM / 5:59 PM |
| Wed Oct 21 | H 4:27 AM 2.5 ftL 10:49 AM 0.7 ftH 4:51 PM 2.7 ftL 11:14 PM 0.5 ft | 7:05 AM / 5:58 PM |
| Thu Oct 22 | H 5:14 AM 2.8 ftL 11:37 AM 0.5 ftH 5:35 PM 2.8 ftL 11:45 PM 0.3 ft | 7:06 AM / 5:56 PM |
| Fri Oct 23 | H 5:55 AM 3.1 ftL 12:21 PM 0.2 ftH 6:16 PM 3.0 ft | 7:07 AM / 5:55 PM |
| Sat Oct 24 | L 12:14 AM 0.1 ftH 6:34 AM 3.5 ftL 1:03 PM 0.0 ftH 6:58 PM 3.1 ft | 7:08 AM / 5:54 PM |
| Sun Oct 25 | L 12:47 AM -0.1 ftH 7:15 AM 3.8 ftL 1:45 PM -0.1 ftH 7:41 PM 3.2 ft | 7:09 AM / 5:52 PM |
| Mon Oct 26 | L 1:24 AM -0.3 ftH 7:58 AM 4.0 ftL 2:28 PM -0.2 ftH 8:26 PM 3.2 ft | 7:11 AM / 5:51 PM |
| Tue Oct 27 | L 2:04 AM -0.3 ftH 8:44 AM 4.0 ftL 3:13 PM -0.2 ftH 9:13 PM 3.2 ft | 7:12 AM / 5:49 PM |
| Wed Oct 28 | L 2:47 AM -0.3 ftH 9:32 AM 4.0 ftL 3:59 PM -0.1 ftH 10:02 PM 3.1 ft | 7:13 AM / 5:48 PM |
| Thu Oct 29 | L 3:34 AM -0.2 ftH 10:23 AM 3.8 ftL 4:53 PM 0.1 ftH 10:56 PM 3.0 ft | 7:14 AM / 5:47 PM |
| Fri Oct 30 | L 4:24 AM -0.1 ftH 11:20 AM 3.6 ftL 6:05 PM 0.2 ftH 11:55 PM 2.9 ft | 7:15 AM / 5:46 PM |
| Sat Oct 31 | L 5:22 AM 0.1 ftH 12:23 PM 3.4 ftL 7:27 PM 0.3 ft | 7:17 AM / 5:44 PM |
| Sun Nov 1 | H 12:59 AM 2.8 ftL 5:44 AM 0.3 ftH 12:29 PM 3.2 ftL 7:36 PM 0.3 ft | 6:18 AM / 4:43 PM |
| Mon Nov 2 | H 1:06 AM 2.8 ftL 7:30 AM 0.4 ftH 1:37 PM 3.0 ftL 8:35 PM 0.3 ft | 6:19 AM / 4:42 PM |
| Tue Nov 3 | H 2:14 AM 2.9 ftL 8:50 AM 0.3 ftH 2:45 PM 2.9 ftL 9:28 PM 0.2 ft | 6:20 AM / 4:41 PM |
| Wed Nov 4 | H 3:20 AM 3.1 ftL 9:54 AM 0.3 ftH 3:47 PM 2.9 ftL 10:13 PM 0.1 ft | 6:21 AM / 4:39 PM |
| Thu Nov 5 | H 4:18 AM 3.3 ftL 10:48 AM 0.2 ftH 4:40 PM 2.9 ftL 10:52 PM 0.1 ft | 6:23 AM / 4:38 PM |
| Fri Nov 6 | H 5:07 AM 3.5 ftL 11:35 AM 0.1 ftH 5:26 PM 2.9 ftL 11:27 PM 0.0 ft | 6:24 AM / 4:37 PM |
| Sat Nov 7 | H 5:51 AM 3.6 ftL 12:17 PM 0.1 ftH 6:08 PM 2.9 ftL 11:57 PM 0.0 ft | 6:25 AM / 4:36 PM |
| Sun Nov 8 | H 6:32 AM 3.6 ftL 12:55 PM 0.1 ftH 6:48 PM 2.9 ft | 6:26 AM / 4:35 PM |
| Mon Nov 9 | L 12:25 AM 0.0 ftH 7:10 AM 3.5 ftL 1:30 PM 0.1 ftH 7:27 PM 2.8 ft | 6:27 AM / 4:34 PM |
| Tue Nov 10 | L 12:55 AM 0.1 ftH 7:47 AM 3.4 ftL 2:02 PM 0.1 ftH 8:05 PM 2.7 ft | 6:29 AM / 4:33 PM |
Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.
Around Block Island (Old Harbor)
Beaches
- Surf Beach 0.2 mi
- Ballard's Beach 0.2 mi
- Baby Beach 0.5 mi
- Pebbly Beach 0.5 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
About the tides at Block Island (Old Harbor)
Block Island (Old Harbor) gets two high tides and two low tides almost every day, and the two highs are close in height. Over the next month the water typically rises or falls about 2.8 ft between a high and the next low.
The biggest swings in this window come around Tuesday, October 27, when the day's range reaches 4.4 ft, and again around Sunday, October 11 (3.8 ft). Those spring tides follow the new and full moon by a day or two. The calmest day is Sunday, October 18, with only 1.6 ft between the day's highest and lowest water.
The lowest tide of the month is -0.3 ft at 2:04 AM on Tuesday, October 27. There are 11 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.
The highest predicted tide is 4.0 ft at 8:44 AM on Tuesday, October 27. Onshore wind or a storm can push the real water level above that.
This is a reference (harmonic) station: NOAA predicts its tides directly from years of measured water levels here, which makes it among the most reliable predictions on the coast.
Station details
- NOAA station ID: 8459338
- Type: reference (harmonic)
- Location: 41.1733, -71.5567