bootitemsTides
Block Island (Old Harbor) · August 2026
Block Island (Old Harbor), RI · NOAA 8459338 · Times EDT · Heights in feet above MLLW
H High tideL Low tideSpring tides
1 August
L3:52a0.1
H10:05a3.1
L3:54p0.3
H10:20p3.1
2 August
L4:18a0.1
H10:45a3.1
L4:34p0.4
H11:00p3.0
3 August
L4:50a0.1
H11:28a3.2
L5:20p0.5
H11:46p2.9
4 August
L5:28a0.1
H12:16p3.2
L6:16p0.6
5 August
H12:37a2.7
L6:15a0.2
H1:08p3.3
L7:27p0.6
6 August
H1:33a2.6
L7:10a0.2
H2:05p3.3
L9:01p0.6
7 August
H2:36a2.6
L8:12a0.3
H3:11p3.3
L10:25p0.5
8 August
H3:47a2.6
L9:24a0.2
H4:25p3.4
L11:30p0.3
9 August
H4:59a2.7
L10:44a0.1
H5:34p3.6
10 August
L12:26a0.1
H6:03a3.0
L11:55a0.0
H6:33p3.8
11 August, spring tides
L1:16a−0.1
H6:58a3.3
L12:56p−0.2
H7:26p3.9
12 August, spring tides
L2:04a−0.2
H7:51a3.5
L1:53p−0.3
H8:16p3.9
13 August, spring tides
L2:46a−0.3
H8:40a3.6
L2:45p−0.3
H9:02p3.8
14 August, spring tides
L3:25a−0.3
H9:28a3.7
L3:32p−0.2
H9:47p3.6
15 August, spring tides
L3:59a−0.2
H10:14a3.7
L4:17p0.0
H10:30p3.4
16 August
L4:30a−0.1
H11:00a3.6
L5:02p0.2
H11:14p3.1
17 August
L4:57a0.1
H11:46a3.4
L5:50p0.5
H11:58p2.7
18 August
L5:28a0.4
H12:33p3.1
L6:49p0.7
19 August
H12:45a2.5
L6:05a0.6
H1:22p2.9
L7:59p0.8
20 August
H1:34a2.3
L6:52a0.7
H2:16p2.7
L9:10p0.9
21 August
H2:30a2.1
L7:49a0.8
H3:23p2.6
L10:17p0.9
22 August
H3:42a2.1
L9:04a0.9
H4:38p2.7
L11:13p0.9
23 August
H4:56a2.2
L10:36a0.8
H5:36p2.8
24 August
L12:01a0.7
H5:49a2.3
L11:36a0.7
H6:20p2.9
25 August
L12:42a0.6
H6:31a2.5
L12:23p0.5
H6:57p3.1
26 August
L1:19a0.4
H7:08a2.8
L1:06p0.4
H7:31p3.2
27 August
L1:52a0.3
H7:43a3.0
L1:46p0.2
H8:03p3.3
28 August
L2:20a0.1
H8:19a3.2
L2:24p0.2
H8:38p3.3
29 August, spring tides
L2:45a0.0
H8:56a3.4
L3:01p0.1
H9:15p3.3
30 August, spring tides
L3:11a0.0
H9:35a3.5
L3:39p0.2
H9:54p3.2
31 August, spring tides
L3:41a0.0
H10:16a3.5
L4:18p0.2
H10:37p3.1
Predictions from NOAA CO-OPS. Not for navigation.bootitems.com/tides/block-island-old-harbor-ri/