Roche Harbor, San Juan Island Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Roche Harbor, San Juan Island, Washington — August 2026 & September 2026. Every value is computed from NOAA harmonic constituents, the same offline engine that powers the Ebb app.
NOAA Station
9449834
Type
Subordinate (offset)
Coordinates
48.610, -123.155
Time Zone
Los Angeles
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 5:48 AM · Sunset 8:48 PM · Moon Waning Gibbous (83% lit)
Low 2:10a · 4.3 ftHigh 7:19a · 5.9 ftLow 1:44p · 0.7 ftHigh 8:48p · 7.7 ft
Major window ★★★
3:10a – 5:10a
Minor window ★★★
9:53a – 10:53a
Major window ★★★
3:22p – 5:22p
Minor window ★★★
9:47p – 10:47p
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 overlaps dawn/dusk or a tide swing
Major windows: 5:27a–7:27a, 5:46p–7:46p
Thursday, Aug 6 ★★★
Major window overlaps dawn/dusk or a tide swing
Major windows: 6:20a–8:20a, 6:43p–8:43p
Wednesday, Aug 19 ★★★
Major window overlaps dawn/dusk or a tide swing
Major windows: 5:28a–7:28a, 5:47p–7:47p
Thursday, Aug 20 ★★★
Major window overlaps dawn/dusk or a tide swing
Major windows: 6:16a–8:16a, 6:38p–8:38p
Friday, Aug 21 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 7:06a–9:06a, 7:31p–9:31p
Saturday, Aug 22 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 7:57a–9:57a, 8:24p–10:24p
Tide table — August 2026
Roche Harbor, San Juan Island tides, August 2026
All high and low tides for Roche Harbor, San Juan Island, in local time (Los Angeles). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | L 1:28a 5.1 ftH 6:22a 6.3 ftL 1:09p -0.2 ftH 8:26p 7.7 ft | 5:47a / 8:49p |
| 2 | Sun | L 2:10a 4.3 ftH 7:19a 5.9 ftL 1:44p 0.7 ftH 8:48p 7.7 ft | 5:48a / 8:48p |
| 3 | Mon | L 2:55a 3.3 ftH 8:27a 5.4 ftL 2:17p 2.0 ftH 9:10p 7.8 ft | 5:49a / 8:46p |
| 4 | Tue | L 3:44a 2.0 ftH 9:42a 5.1 ftL 2:53p 3.2 ftH 9:36p 7.7 ft | 5:51a / 8:45p |
| 5 | Wed | L 4:34a 1.0 ftH 11:20a 5.0 ftL 3:32p 4.6 ftH 10:03p 7.6 ft | 5:52a / 8:43p |
| 6 | Thu | L 5:28a 0.0 ftH 1:45p 5.4 ftL 4:21p 5.8 ftH 10:34p 7.6 ft | 5:53a / 8:42p |
| 7 | Fri | L 6:26a -0.8 ftH 3:33p 6.2 ftL 5:45p 6.7 ftH 11:12p 7.6 ft | 5:55a / 8:40p |
| 8 | Sat | L 7:26a -1.5 ftH 4:27p 6.9 ftL 7:27p 7.2 ft | 5:56a / 8:38p |
| 9 | Sun | H 12:07a 7.5 ftL 8:25a -2.0 ftH 5:05p 7.4 ftL 8:48p 7.1 ft | 5:57a / 8:37p |
| 10 | Mon | H 1:15a 7.5 ftL 9:20a -2.3 ftH 5:39p 7.7 ftL 9:49p 6.7 ft | 5:59a / 8:35p |
| 11 | Tue | H 2:28a 7.4 ftL 10:11a -2.4 ftH 6:11p 7.8 ftL 10:41p 6.1 ft | 6a / 8:33p |
| 12 | Wed | H 3:39a 7.3 ftL 10:58a -2.1 ftH 6:41p 7.9 ftL 11:31p 5.3 ft | 6:02a / 8:32p |
| 13 | Thu | H 4:46a 7.1 ftL 11:42a -1.5 ftH 7:08p 7.9 ft | 6:03a / 8:30p |
| 14 | Fri | L 12:21a 4.4 ftH 5:49a 6.8 ftL 12:25p -0.6 ftH 7:34p 7.9 ft | 6:04a / 8:28p |
| 15 | Sat | L 1:12a 3.5 ftH 6:52a 6.4 ftL 1:06p 0.6 ftH 7:59p 7.8 ft | 6:06a / 8:26p |
| 16 | Sun | L 2:02a 2.6 ftH 7:57a 6.0 ftL 1:48p 1.9 ftH 8:23p 7.6 ft | 6:07a / 8:25p |
| 17 | Mon | L 2:51a 1.8 ftH 9:10a 5.7 ftL 2:31p 3.3 ftH 8:47p 7.4 ft | 6:09a / 8:23p |
| 18 | Tue | L 3:40a 1.2 ftH 10:42a 5.5 ftL 3:20p 4.6 ftH 9:13p 7.2 ft | 6:10a / 8:21p |
| 19 | Wed | L 4:30a 0.8 ftH 12:39p 5.7 ftL 4:20p 5.7 ftH 9:41p 6.9 ft | 6:11a / 8:19p |
| 20 | Thu | L 5:24a 0.6 ftH 2:22p 6.3 ftL 5:50p 6.4 ftH 10:14p 6.6 ft | 6:13a / 8:17p |
| 21 | Fri | L 6:22a 0.4 ftH 3:31p 6.8 ftL 7:53p 6.7 ftH 10:58p 6.4 ft | 6:14a / 8:15p |
| 22 | Sat | L 7:22a 0.3 ftH 4:19p 7.1 ftL 9:29p 6.6 ftH 11:57p 6.2 ft | 6:16a / 8:13p |
| 23 | Sun | L 8:19a 0.2 ftH 4:56p 7.3 ftL 10:09p 6.4 ft | 6:17a / 8:11p |
| 24 | Mon | H 1:05a 6.2 ftL 9:09a 0.0 ftH 5:26p 7.4 ftL 10:30p 6.1 ft | 6:18a / 8:09p |
| 25 | Tue | H 2:09a 6.3 ftL 9:50a -0.2 ftH 5:49p 7.4 ftL 10:48p 5.8 ft | 6:20a / 8:08p |
| 26 | Wed | H 3:07a 6.4 ftL 10:27a -0.2 ftH 6:08p 7.4 ftL 11:11p 5.3 ft | 6:21a / 8:06p |
| 27 | Thu | H 4:01a 6.5 ftL 11a -0.1 ftH 6:23p 7.4 ftL 11:38p 4.6 ft | 6:23a / 8:04p |
| 28 | Fri | H 4:53a 6.5 ftL 11:33a 0.2 ftH 6:38p 7.4 ft | 6:24a / 8:02p |
| 29 | Sat | L 12:10a 3.8 ftH 5:46a 6.5 ftL 12:06p 0.8 ftH 6:56p 7.5 ft | 6:25a / 8p |
| 30 | Sun | L 12:45a 2.8 ftH 6:41a 6.4 ftL 12:40p 1.7 ftH 7:17p 7.5 ft | 6:27a / 7:58p |
| 31 | Mon | L 1:24a 1.8 ftH 7:40a 6.2 ftL 1:16p 2.7 ftH 7:41p 7.5 ft | 6:28a / 7:56p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Roche Harbor, San Juan Island tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | L 2:07a 0.8 ftH 8:45a 6.1 ftL 1:54p 3.9 ftH 8:06p 7.5 ft | 6:30a / 7:54p |
| 2 | Wed | L 2:54a 0.0 ftH 10:02a 6.0 ftL 2:36p 5.0 ftH 8:33p 7.4 ft | 6:31a / 7:51p |
| 3 | Thu | L 3:47a -0.5 ftH 11:44a 6.1 ftL 3:26p 6.0 ftH 9:03p 7.3 ft | 6:32a / 7:49p |
| 4 | Fri | L 4:46a -0.8 ftH 1:40p 6.4 ftL 4:41p 6.7 ftH 9:41p 7.1 ft | 6:34a / 7:47p |
| 5 | Sat | L 5:52a -1.0 ftH 2:57p 6.9 ftL 6:30p 7.0 ftH 10:44p 6.9 ft | 6:35a / 7:45p |
| 6 | Sun | L 7:01a -1.1 ftH 3:46p 7.2 ftL 8:09p 6.8 ft | 6:37a / 7:43p |
| 7 | Mon | H 12:10a 6.7 ftL 8:07a -1.1 ftH 4:23p 7.5 ftL 9:12p 6.1 ft | 6:38a / 7:41p |
| 8 | Tue | H 1:37a 6.6 ftL 9:05a -1.0 ftH 4:54p 7.6 ftL 9:57p 5.3 ft | 6:39a / 7:39p |
| 9 | Wed | H 2:57a 6.7 ftL 9:55a -0.6 ftH 5:22p 7.6 ftL 10:38p 4.3 ft | 6:41a / 7:37p |
| 10 | Thu | H 4:09a 6.7 ftL 10:39a 0.0 ftH 5:47p 7.6 ftL 11:18p 3.2 ft | 6:42a / 7:35p |
| 11 | Fri | H 5:14a 6.8 ftL 11:21a 0.8 ftH 6:09p 7.6 ftL 11:58p 2.2 ft | 6:44a / 7:33p |
| 12 | Sat | H 6:14a 6.7 ftL 12:01p 1.8 ftH 6:30p 7.5 ft | 6:45a / 7:31p |
| 13 | Sun | L 12:37a 1.4 ftH 7:13a 6.7 ftL 12:42p 2.9 ftH 6:51p 7.4 ft | 6:46a / 7:29p |
| 14 | Mon | L 1:17a 0.7 ftH 8:14a 6.6 ftL 1:26p 4.0 ftH 7:13p 7.2 ft | 6:48a / 7:26p |
| 15 | Tue | L 1:58a 0.2 ftH 9:20a 6.6 ftL 2:15p 5.0 ftH 7:37p 7.0 ft | 6:49a / 7:24p |
| 16 | Wed | L 2:40a 0.1 ftH 10:38a 6.5 ftL 3:14p 5.8 ftH 8:04p 6.7 ft | 6:51a / 7:22p |
| 17 | Thu | L 3:26a 0.1 ftH 12:09p 6.6 ftL 4:35p 6.4 ftH 8:33p 6.3 ft | 6:52a / 7:20p |
| 18 | Fri | L 4:19a 0.4 ftH 1:34p 6.8 ftL 6:52p 6.5 ftH 9:11p 6.0 ft | 6:53a / 7:18p |
| 19 | Sat | L 5:20a 0.7 ftH 2:38p 7.0 ftL 8:50p 6.3 ftH 10:14p 5.8 ft | 6:55a / 7:16p |
| 20 | Sun | L 6:28a 0.9 ftH 3:24p 7.1 ftL 9:27p 6.0 ftH 11:36p 5.6 ft | 6:56a / 7:14p |
| 21 | Mon | L 7:33a 0.9 ftH 3:58p 7.2 ftL 9:46p 5.6 ft | 6:58a / 7:12p |
| 22 | Tue | H 12:56a 5.7 ftL 8:28a 0.9 ftH 4:22p 7.2 ftL 9:59p 5.1 ft | 6:59a / 7:10p |
| 23 | Wed | H 2:09a 5.8 ftL 9:12a 0.9 ftH 4:40p 7.2 ftL 10:15p 4.4 ft | 7a / 7:07p |
| 24 | Thu | H 3:13a 6.0 ftL 9:50a 1.1 ftH 4:53p 7.2 ftL 10:36p 3.6 ft | 7:02a / 7:05p |
| 25 | Fri | H 4:12a 6.3 ftL 10:26a 1.5 ftH 5:07p 7.3 ftL 11:02p 2.5 ft | 7:03a / 7:03p |
| 26 | Sat | H 5:08a 6.5 ftL 11a 2.2 ftH 5:24p 7.4 ftL 11:33p 1.4 ft | 7:05a / 7:01p |
| 27 | Sun | H 6:03a 6.8 ftL 11:36a 3.0 ftH 5:46p 7.4 ft | 7:06a / 6:59p |
| 28 | Mon | L 12:08a 0.3 ftH 6:59a 7.0 ftL 12:14p 3.9 ftH 6:10p 7.5 ft | 7:08a / 6:57p |
| 29 | Tue | L 12:47a -0.6 ftH 7:58a 7.1 ftL 12:56p 4.9 ftH 6:35p 7.4 ft | 7:09a / 6:55p |
| 30 | Wed | L 1:30a -1.3 ftH 9:03a 7.1 ftL 1:42p 5.8 ftH 7:02p 7.3 ft | 7:10a / 6:53p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
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Tide charts near Roche Harbor, San Juan Island
About this data
Predictions for Roche Harbor, San Juan Island 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.