Oceanographic Institution Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Oceanographic Institution, Massachusetts — August 2026 & September 2026. Every value is computed from NOAA harmonic constituents, the same offline engine that powers the Ebb app.
NOAA Station
8447930
Type
Harmonic (reference)
Coordinates
41.524, -70.671
Time Zone
New York
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 5:38 AM · Sunset 7:58 PM · Moon Waning Gibbous (84% lit)
Low 6:05a · 0.4 ftHigh 11:30a · 2.0 ftLow 6:29p · 0.5 ftHigh 11:51p · 2.0 ft
Major window ★★★
2:33a – 4:33a
Minor window ★★★
9:12a – 10:12a
Major window ★★★
2:47p – 4:47p
Minor window ★★★
9:19p – 10:19p
Best fishing days — August 2026
Top solunar bite days this month
Ranked by solunar quality — days when the major feeding windows stack up with sunrise, sunset, or a strong tide swing.
Wednesday, Aug 5 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 4:49a–6:49a, 5:09p–7:09p
Thursday, Aug 6 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:42a–7:42a, 6:05p–8:05p
Friday, Aug 7 ★★★
Major window overlaps dawn/dusk or a tide swing
Major windows: 6:39a–8:39a, 7:08p–9:08p
Wednesday, Aug 19 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 4:50a–6:50a, 5:11p–7:11p
Thursday, Aug 20 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:39a–7:39a, 6:01p–8:01p
Friday, Aug 21 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 6:28a–8:28a, 6:53p–8:53p
Tide table — August 2026
Oceanographic Institution tides, August 2026
All high and low tides for Oceanographic Institution, in local time (New York). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | L 5:25a 0.3 ftH 10:45a 1.9 ftL 5:27p 0.4 ftH 11:06p 2.2 ft | 5:37a / 7:59p |
| 2 | Sun | L 6:05a 0.4 ftH 11:30a 2.0 ftL 6:29p 0.5 ftH 11:51p 2.0 ft | 5:38a / 7:58p |
| 3 | Mon | L 6:47a 0.4 ftH 12:20p 2.1 ftL 7:39p 0.5 ft | 5:39a / 7:57p |
| 4 | Tue | H 12:39a 1.9 ftL 7:33a 0.4 ftH 1:13p 2.2 ftL 8:46p 0.5 ft | 5:40a / 7:56p |
| 5 | Wed | H 1:32a 1.7 ftL 5:11a 0.7 ftH 5:49a 0.7 ftL 8:21a 0.5 ftH 2:07p 2.3 ftL 9:54p 0.4 ft | 5:41a / 7:55p |
| 6 | Thu | H 2:25a 1.6 ftL 5:58a 0.7 ftH 6:36a 0.7 ftL 9:13a 0.4 ftH 3:05p 2.3 ftL 11:02p 0.3 ft | 5:42a / 7:54p |
| 7 | Fri | H 3:24a 1.6 ftL 10:12a 0.4 ftH 4:11p 2.4 ft | 5:43a / 7:52p |
| 8 | Sat | L 12:03a 0.2 ftH 4:28a 1.6 ftL 11:14a 0.3 ftH 5:18p 2.6 ft | 5:44a / 7:51p |
| 9 | Sun | L 1a 0.1 ftH 5:30a 1.7 ftL 12:14p 0.2 ftH 6:16p 2.7 ft | 5:45a / 7:50p |
| 10 | Mon | L 1:57a 0.0 ftH 6:26a 1.9 ftL 1:16p 0.1 ftH 7:08p 2.8 ft | 5:46a / 7:48p |
| 11 | Tue | L 2:51a -0.1 ftH 7:18a 2.1 ftL 2:26p 0.0 ftH 7:58p 2.9 ft | 5:47a / 7:47p |
| 12 | Wed | L 3:39a -0.2 ftH 8:10a 2.2 ftL 3:28p 0.0 ftH 8:46p 2.8 ft | 5:48a / 7:46p |
| 13 | Thu | L 4:22a -0.2 ftH 9:01a 2.4 ftL 4:21p 0.0 ftH 9:32p 2.7 ft | 5:49a / 7:44p |
| 14 | Fri | L 5:04a -0.1 ftH 9:50a 2.4 ftL 5:12p 0.1 ftH 10:18p 2.5 ft | 5:50a / 7:43p |
| 15 | Sat | L 5:44a 0.1 ftH 10:39a 2.4 ftL 6:11p 0.2 ftH 11:04p 2.2 ft | 5:51a / 7:42p |
| 16 | Sun | L 6:26a 0.3 ftH 11:29a 2.4 ftL 7:18p 0.3 ftH 11:51p 1.9 ft | 5:52a / 7:40p |
| 17 | Mon | L 7:08a 0.5 ftH 12:20p 2.3 ftL 8:25p 0.5 ft | 5:53a / 7:39p |
| 18 | Tue | H 12:41a 1.7 ftL 7:42a 0.7 ftH 1:13p 2.2 ftL 9:33p 0.6 ft | 5:54a / 7:37p |
| 19 | Wed | H 1:31a 1.5 ftL 4:28a 0.9 ftH 5:38a 0.9 ftL 8:02a 0.8 ftH 2:05p 2.1 ftL 10:44p 0.6 ft | 5:55a / 7:36p |
| 20 | Thu | H 2:20a 1.3 ftL 4:59a 0.9 ftH 6:36a 1.0 ftL 8:31a 0.9 ftH 3p 1.9 ftL 11:46p 0.7 ft | 5:56a / 7:34p |
| 21 | Fri | H 3:11a 1.2 ftL 5:41a 0.9 ftH 7:19a 1.0 ftL 9:14a 0.9 ftH 4:02p 1.9 ftL 6:24p 1.7 ftH 6:36p 1.7 ft | 5:57a / 7:33p |
| 22 | Sat | L 12:37a 0.7 ftH 4:09a 1.2 ftL 6:36a 1.0 ftH 7:55a 1.0 ftL 10:10a 0.9 ftH 5:08p 1.9 ft | 5:58a / 7:31p |
| 23 | Sun | L 1:23a 0.7 ftH 5:09a 1.3 ftL 7:50a 1.0 ftH 8:21a 1.0 ftL 11:06a 0.8 ftH 6:01p 1.9 ft | 5:59a / 7:30p |
| 24 | Mon | L 2:02a 0.7 ftH 6:01a 1.4 ftL 11:56a 0.7 ftH 6:43p 2.1 ft | 6a / 7:28p |
| 25 | Tue | L 2:29a 0.6 ftH 6:46a 1.5 ftL 12:45p 0.6 ftH 7:22p 2.2 ft | 6:01a / 7:26p |
| 26 | Wed | L 2:45a 0.5 ftH 7:29a 1.7 ftL 1:41p 0.5 ftH 7:59p 2.2 ft | 6:02a / 7:25p |
| 27 | Thu | L 3:06a 0.4 ftH 8:11a 1.9 ftL 2:41p 0.4 ftH 8:37p 2.3 ft | 6:03a / 7:23p |
| 28 | Fri | L 3:35a 0.3 ftH 8:53a 2.0 ftL 3:35p 0.3 ftH 9:16p 2.3 ft | 6:04a / 7:22p |
| 29 | Sat | L 4:07a 0.3 ftH 9:35a 2.2 ftL 4:26p 0.3 ftH 9:56p 2.2 ft | 6:05a / 7:20p |
| 30 | Sun | L 4:42a 0.3 ftH 10:17a 2.3 ftL 5:19p 0.3 ftH 10:38p 2.1 ft | 6:06a / 7:18p |
| 31 | Mon | L 5:21a 0.3 ftH 11:02a 2.4 ftL 6:20p 0.3 ftH 11:24p 2.0 ft | 6:07a / 7:17p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Oceanographic Institution tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | L 6:05a 0.4 ftH 11:53a 2.4 ftL 7:29p 0.3 ft | 6:08a / 7:15p |
| 2 | Wed | H 12:16a 1.8 ftL 6:59a 0.5 ftH 12:49p 2.4 ftL 8:36p 0.3 ft | 6:09a / 7:13p |
| 3 | Thu | H 1:11a 1.7 ftL 4:44a 0.7 ftH 5:34a 0.7 ftL 7:58a 0.5 ftH 1:47p 2.4 ftL 9:44p 0.3 ft | 6:10a / 7:12p |
| 4 | Fri | H 2:07a 1.7 ftL 5:27a 0.8 ftH 6:20a 0.8 ftL 9a 0.5 ftH 2:48p 2.4 ftL 10:51p 0.3 ft | 6:11a / 7:10p |
| 5 | Sat | H 3:05a 1.6 ftL 10:10a 0.4 ftH 3:53p 2.4 ftL 11:50p 0.2 ft | 6:12a / 7:08p |
| 6 | Sun | H 4:08a 1.7 ftL 11:21a 0.3 ftH 5:01p 2.5 ft | 6:13a / 7:07p |
| 7 | Mon | L 12:44a 0.1 ftH 5:12a 1.8 ftL 12:23p 0.2 ftH 5:58p 2.5 ft | 6:14a / 7:05p |
| 8 | Tue | L 1:36a 0.0 ftH 6:09a 2.0 ftL 1:26p 0.2 ftH 6:48p 2.6 ft | 6:15a / 7:03p |
| 9 | Wed | L 2:27a 0.0 ftH 7a 2.2 ftL 2:31p 0.1 ftH 7:35p 2.6 ft | 6:16a / 7:02p |
| 10 | Thu | L 3:13a 0.0 ftH 7:50a 2.4 ftL 3:27p 0.1 ftH 8:20p 2.5 ft | 6:17a / 7p |
| 11 | Fri | L 3:53a 0.0 ftH 8:38a 2.5 ftL 4:16p 0.1 ftH 9:05p 2.4 ft | 6:18a / 6:58p |
| 12 | Sat | L 4:27a 0.2 ftH 9:25a 2.6 ftL 5:02p 0.1 ftH 9:49p 2.2 ft | 6:20a / 6:57p |
| 13 | Sun | L 4:55a 0.3 ftH 10:11a 2.6 ftL 5:51p 0.2 ftH 10:33p 2.0 ft | 6:21a / 6:55p |
| 14 | Mon | L 5:13a 0.5 ftH 10:58a 2.5 ftL 6:50p 0.4 ftH 11:19p 1.8 ft | 6:22a / 6:53p |
| 15 | Tue | L 5:31a 0.7 ftH 11:47a 2.3 ftL 7:53p 0.5 ft | 6:23a / 6:51p |
| 16 | Wed | H 12:08a 1.6 ftL 5:58a 0.8 ftH 12:40p 2.2 ftL 8:57p 0.6 ft | 6:24a / 6:50p |
| 17 | Thu | H 12:59a 1.4 ftL 3:59a 0.9 ftH 5:33a 0.9 ftL 6:45a 0.9 ftH 1:34p 2.0 ftL 10:05p 0.7 ft | 6:25a / 6:48p |
| 18 | Fri | H 1:50a 1.3 ftL 4:31a 0.9 ftH 6:20a 1.0 ftL 7:47a 0.9 ftH 2:29p 1.9 ftL 5:05p 1.5 ftH 5:40p 1.6 ftL 11:10p 0.7 ft | 6:26a / 6:46p |
| 19 | Sat | H 2:41a 1.3 ftL 5:10a 0.9 ftH 6:56a 1.1 ftL 8:47a 1.0 ftH 3:28p 1.8 ftL 5:36p 1.6 ftH 6:27p 1.6 ftL 11:59p 0.7 ft | 6:27a / 6:44p |
| 20 | Sun | H 3:37a 1.3 ftL 5:57a 1.0 ftH 7:29a 1.1 ftL 9:50a 0.9 ftH 4:32p 1.8 ft | 6:28a / 6:43p |
| 21 | Mon | L 12:33a 0.7 ftH 4:39a 1.3 ftL 7:03a 1.1 ftH 7:56a 1.1 ftL 10:53a 0.8 ftH 5:28p 1.9 ft | 6:29a / 6:41p |
| 22 | Tue | L 12:52a 0.7 ftH 5:35a 1.5 ftL 11:45a 0.7 ftH 6:10p 2.0 ft | 6:30a / 6:39p |
| 23 | Wed | L 1:04a 0.6 ftH 6:20a 1.7 ftL 12:35p 0.6 ftH 6:47p 2.1 ft | 6:31a / 6:38p |
| 24 | Thu | L 1:30a 0.5 ftH 7:01a 1.9 ftL 1:29p 0.5 ftH 7:25p 2.1 ft | 6:32a / 6:36p |
| 25 | Fri | L 2:05a 0.4 ftH 7:42a 2.1 ftL 2:29p 0.3 ftH 8:04p 2.2 ft | 6:33a / 6:34p |
| 26 | Sat | L 2:45a 0.3 ftH 8:24a 2.4 ftL 3:26p 0.2 ftH 8:46p 2.2 ft | 6:34a / 6:32p |
| 27 | Sun | L 3:25a 0.2 ftH 9:07a 2.6 ftL 4:17p 0.1 ftH 9:29p 2.1 ft | 6:35a / 6:31p |
| 28 | Mon | L 4:04a 0.2 ftH 9:52a 2.7 ftL 5:10p 0.1 ftH 10:14p 2.0 ft | 6:36a / 6:29p |
| 29 | Tue | L 4:46a 0.3 ftH 10:39a 2.7 ftL 6:10p 0.1 ftH 11:03p 1.9 ft | 6:37a / 6:27p |
| 30 | Wed | L 5:34a 0.3 ftH 11:31a 2.7 ftL 7:18p 0.1 ftH 11:55p 1.8 ft | 6:38a / 6:26p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
Every station, offline, forever
Take every tide chart with you — even with zero signal.
Ebb computes tides and solunar bite windows for all 3,399 U.S. stations right on your phone, with no connection required. Unlimited dates, home & lock-screen widgets, and pre-window alerts. $9.99 once — no subscription, ever.
App StoreComing soon — Ebb is in final App Review. Explore what it does →
Nearby stations
Tide charts near Oceanographic Institution
About this data
Predictions for Oceanographic Institution are computed from NOAA CO-OPS harmonic constituents using Ebb's on-device engine (a Schureman/pytides harmonic model). They are astronomical tide predictions and do not account for weather, wind, or barometric pressure, which can shift real water levels. Solunar bite windows are a fishing-planning heuristic, not a guarantee. Ebb is a fishing- and trip-planning tool, not a navigation product — always consult NOAA Tides & Currents and official sources for navigation-critical decisions.