New England
Block Island (Old Harbor)
Rhode Island · NOAA station 8459338 · Tide predictions
41.1733, -71.5567
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48-hour outlook
Drag across the curve to inspect any time. Weather icons show the forecast at each high tide.
Drawn from the high/low predictions — NOAA publishes high/low only for this station.
The next seven days
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H = high tide · L = low tide · highs & lows in local time
On the water nearby
Block Island, RI (154) buoy · 27 mi SE · Station 44097
Wind & wave reports →
Nearby tide stations
- Southwest Point, Block Island · 2.9 mi W
- Point Judith, Harbor of Refuge · 13.6 mi N
- Weekapaug Point, Block Island Sound · 15.1 mi NW
- Narragansett Pier · 18.0 mi N
- Watch Hill Point · 18.2 mi NW
Plan ahead
2027 tide extremes for this station
Highest predicted high tide: 4.1 ft — Thu Sep 30 · 8:11 AM
Lowest predicted low tide: -0.9 ft — Sat Jan 23 · 1:27 AM
Biggest single-day swing: 4.6 ft on Sat Jan 23
Best daytime minus tides of 2027
| Date | Low tide | Height |
|---|---|---|
| Sat Jan 23 | 2:24 PM | -0.8 ft |
| Sun Feb 21 | 1:56 PM | -0.8 ft |
| Fri Jan 22 | 1:41 PM | -0.8 ft |
| Sun Jan 24 | 3:04 PM | -0.8 ft |
| Sat Feb 20 | 1:18 PM | -0.8 ft |
| Mon Feb 22 | 2:31 PM | -0.8 ft |
| Thu Jan 21 | 12:55 PM | -0.6 ft |
| Mon Jan 25 | 3:42 PM | -0.6 ft |
| Fri Feb 19 | 12:35 PM | -0.6 ft |
| Tue Feb 23 | 3:03 PM | -0.6 ft |
260 minus tides (below 0 ft) are predicted here in 2027. The table shows up to the 10 lowest that fall between 7 AM and 7 PM — the ones worth planning a clam dig or tidepool walk around.
About this station
Block Island (Old Harbor) is one of NOAA's reference tide stations — its predictions are computed directly from harmonic analysis of water levels observed here, and other nearby stations are calculated from it.
Rocky shores and the country's biggest northern ranges: Eastport flirts with 20 ft, and the Gulf of Maine funnels weather as much as tide. Harbors here float — or sit in the mud — on the moon's schedule.