BLOCK ISLAND · TIDE CHART

Block Island tide chart & tide times.

Today's high and low tide times for Block Island, RI, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.

In Block Island, RI, the next high tide is at 12:24 PM (3.3ft) and the next low tide is at 6:15 AM (0.8ft), based on harmonic predictions for Block Island (Old Harbor).

Today's tides · Sun, Nov 1

All high and low tides for Block Island today, in local time (America/New York). Heights are metres above chart datum.

Tide curve for Block Island: Low 6:15 AM at 0.2 metres, High 12:24 PM at 1 metres, Low 6:21 PM at 0.2 metres 06:0012:0018:00 6:15 AM · 0.2m12:24 PM · 1m6:21 PM · 0.2m
Low
6:15 AM
0.8ft
High
12:24 PM
3.3ft
Low
6:21 PM
0.7ft

7-day tide table

High (H) and low (L) tide times and heights for the next seven days at Block Island.

DateTides (local time · height)
Sun, Nov 1 L 6:15 AM 0.8ftH 12:24 PM 3.3ftL 6:21 PM 0.7ft
Mon, Nov 2 H 12:57 AM 3.8ftL 7:27 AM 0.8ftH 1:33 PM 3.3ftL 7:39 PM 0.8ft
Tue, Nov 3 H 2:03 AM 3.8ftL 8:36 AM 0.7ftH 2:39 PM 3.4ftL 8:57 PM 0.8ft
Wed, Nov 4 H 3:06 AM 3.7ftL 9:39 AM 0.6ftH 3:39 PM 3.6ftL 10:03 PM 0.7ft
Thu, Nov 5 H 4:03 AM 3.7ftL 10:33 AM 0.5ftH 4:33 PM 3.8ftL 11:00 PM 0.6ft
Fri, Nov 6 H 4:54 AM 3.7ftL 11:18 AM 0.4ftH 5:24 PM 4.0ftL 11:51 PM 0.5ft
Sat, Nov 7 H 5:42 AM 3.7ftL 12:00 PM 0.4ftH 6:09 PM 4.0ft
Sun, Nov 8 L 12:36 AM 0.5ftH 6:27 AM 3.7ftL 12:39 PM 0.4ftH 6:51 PM 4.1ft

How these are predicted

Predicted for Block Island (Old Harbor), 0.3 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).

These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Block Island.

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