Mad River Slough, Arcata Bay Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Mad River Slough, Arcata Bay, California — August 2026 & September 2026. Every value is computed from NOAA harmonic constituents, the same offline engine that powers the Ebb app.
NOAA Station
9418865
Type
Subordinate (offset)
Coordinates
40.865, -124.148
Time Zone
Los Angeles
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 6:14 AM · Sunset 8:31 PM · Moon Waning Gibbous (83% lit)
High 3a · 7.1 ftLow 9:20a · 0.2 ftHigh 4:09p · 6.9 ftLow 9:49p · 2.1 ft
Major window ★★★
3:13a – 5:13a
Minor window ★★★
9:55a – 10:55a
Major window ★★★
3:27p – 5:27p
Minor window ★★★
9:56p – 10:56p
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.
Tuesday, Aug 4 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 4:42a–6:42a, 4:59p–6:59p
Wednesday, Aug 5 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:30a–7:30a, 5:51p–7:51p
Thursday, Aug 6 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 6:24a–8:24a, 6:48p–8:48p
Monday, Aug 17 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 4a–6a, 4:17p–6:17p
Wednesday, Aug 19 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:31a–7:31a, 5:52p–7:52p
Thursday, Aug 20 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 6:20a–8:20a, 6:43p–8:43p
Tide table — August 2026
Mad River Slough, Arcata Bay tides, August 2026
All high and low tides for Mad River Slough, Arcata Bay, in local time (Los Angeles). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | H 2:17a 7.5 ftL 8:50a -0.3 ftH 3:40p 6.6 ftL 9p 2.4 ft | 6:13a / 8:32p |
| 2 | Sun | H 3a 7.1 ftL 9:20a 0.2 ftH 4:09p 6.9 ftL 9:49p 2.1 ft | 6:14a / 8:31p |
| 3 | Mon | H 3:48a 6.5 ftL 9:50a 0.9 ftH 4:39p 7.3 ftL 10:45p 1.7 ft | 6:15a / 8:29p |
| 4 | Tue | H 4:46a 5.8 ftL 10:24a 1.6 ftH 5:14p 7.6 ftL 11:46p 1.3 ft | 6:16a / 8:28p |
| 5 | Wed | H 5:57a 5.2 ftL 11:03a 2.4 ftH 5:56p 7.8 ft | 6:16a / 8:27p |
| 6 | Thu | L 12:55a 0.9 ftH 7:23a 4.8 ftL 11:52a 3.0 ftH 6:48p 8.0 ft | 6:17a / 8:26p |
| 7 | Fri | L 2:07a 0.4 ftH 8:59a 4.8 ftL 1p 3.6 ftH 7:50p 8.2 ft | 6:18a / 8:25p |
| 8 | Sat | L 3:16a -0.2 ftH 10:25a 5.1 ftL 2:22p 3.8 ftH 8:57p 8.5 ft | 6:19a / 8:23p |
| 9 | Sun | L 4:18a -0.7 ftH 11:29a 5.5 ftL 3:40p 3.6 ftH 10:03p 8.7 ft | 6:20a / 8:22p |
| 10 | Mon | L 5:13a -1.2 ftH 12:17p 6.0 ftL 4:47p 3.3 ftH 11:04p 8.9 ft | 6:21a / 8:21p |
| 11 | Tue | L 6:02a -1.4 ftH 12:58p 6.4 ftL 5:45p 2.7 ft | 6:22a / 8:19p |
| 12 | Wed | H 12a 9.0 ftL 6:46a -1.5 ftH 1:37p 6.8 ftL 6:40p 2.2 ft | 6:23a / 8:18p |
| 13 | Thu | H 12:53a 8.8 ftL 7:28a -1.3 ftH 2:13p 7.1 ftL 7:31p 1.8 ft | 6:24a / 8:17p |
| 14 | Fri | H 1:43a 8.4 ftL 8:06a -0.8 ftH 2:48p 7.4 ftL 8:21p 1.4 ft | 6:25a / 8:15p |
| 15 | Sat | H 2:33a 7.8 ftL 8:44a -0.1 ftH 3:23p 7.6 ftL 9:12p 1.2 ft | 6:26a / 8:14p |
| 16 | Sun | H 3:23a 7.1 ftL 9:20a 0.7 ftH 3:58p 7.6 ftL 10:03p 1.1 ft | 6:27a / 8:13p |
| 17 | Mon | H 4:16a 6.3 ftL 9:56a 1.6 ftH 4:33p 7.6 ftL 10:57p 1.1 ft | 6:28a / 8:11p |
| 18 | Tue | H 5:15a 5.6 ftL 10:32a 2.4 ftH 5:11p 7.5 ftL 11:55p 1.2 ft | 6:29a / 8:10p |
| 19 | Wed | H 6:23a 5.1 ftL 11:13a 3.2 ftH 5:53p 7.3 ft | 6:30a / 8:08p |
| 20 | Thu | L 1a 1.2 ftH 7:49a 4.8 ftL 12:04p 3.8 ftH 6:44p 7.1 ft | 6:31a / 8:07p |
| 21 | Fri | L 2:09a 1.1 ftH 9:32a 4.9 ftL 1:15p 4.1 ftH 7:44p 7.0 ft | 6:32a / 8:05p |
| 22 | Sat | L 3:15a 0.9 ftH 10:51a 5.1 ftL 2:35p 4.2 ftH 8:48p 7.0 ft | 6:33a / 8:04p |
| 23 | Sun | L 4:11a 0.6 ftH 11:35a 5.4 ftL 3:42p 4.0 ftH 9:46p 7.2 ft | 6:34a / 8:02p |
| 24 | Mon | L 4:56a 0.3 ftH 12:06p 5.6 ftL 4:35p 3.7 ftH 10:38p 7.4 ft | 6:35a / 8:01p |
| 25 | Tue | L 5:35a 0.0 ftH 12:33p 5.9 ftL 5:20p 3.3 ftH 11:23p 7.6 ft | 6:36a / 7:59p |
| 26 | Wed | L 6:09a -0.1 ftH 12:59p 6.2 ftL 6:01p 2.8 ft | 6:37a / 7:58p |
| 27 | Thu | H 12:05a 7.7 ftL 6:41a -0.2 ftH 1:25p 6.5 ftL 6:40p 2.4 ft | 6:38a / 7:56p |
| 28 | Fri | H 12:46a 7.7 ftL 7:11a -0.1 ftH 1:51p 6.8 ftL 7:19p 1.9 ft | 6:39a / 7:55p |
| 29 | Sat | H 1:28a 7.5 ftL 7:41a 0.2 ftH 2:17p 7.2 ftL 8p 1.4 ft | 6:40a / 7:53p |
| 30 | Sun | H 2:11a 7.2 ftL 8:11a 0.7 ftH 2:44p 7.5 ftL 8:43p 1.0 ft | 6:41a / 7:51p |
| 31 | Mon | H 2:58a 6.8 ftL 8:42a 1.2 ftH 3:13p 7.8 ftL 9:30p 0.7 ft | 6:42a / 7:50p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Mad River Slough, Arcata Bay tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | H 3:50a 6.3 ftL 9:15a 1.9 ftH 3:46p 7.9 ftL 10:22p 0.5 ft | 6:43a / 7:48p |
| 2 | Wed | H 4:50a 5.7 ftL 9:51a 2.6 ftH 4:25p 8.0 ftL 11:22p 0.4 ft | 6:44a / 7:46p |
| 3 | Thu | H 6:03a 5.3 ftL 10:35a 3.2 ftH 5:15p 8.0 ft | 6:45a / 7:45p |
| 4 | Fri | L 12:31a 0.3 ftH 7:31a 5.1 ftL 11:36a 3.7 ftH 6:19p 7.9 ft | 6:46a / 7:43p |
| 5 | Sat | L 1:45a 0.1 ftH 9:02a 5.2 ftL 1:02p 4.0 ftH 7:34p 7.9 ft | 6:47a / 7:42p |
| 6 | Sun | L 2:57a -0.1 ftH 10:15a 5.5 ftL 2:32p 3.8 ftH 8:50p 7.9 ft | 6:48a / 7:40p |
| 7 | Mon | L 3:59a -0.4 ftH 11:06a 6.0 ftL 3:47p 3.3 ftH 10p 8.1 ft | 6:49a / 7:38p |
| 8 | Tue | L 4:52a -0.6 ftH 11:47a 6.4 ftL 4:49p 2.6 ftH 11:01p 8.2 ft | 6:50a / 7:37p |
| 9 | Wed | L 5:37a -0.7 ftH 12:23p 6.9 ftL 5:43p 1.9 ftH 11:56p 8.2 ft | 6:51a / 7:35p |
| 10 | Thu | L 6:18a -0.5 ftH 12:57p 7.3 ftL 6:32p 1.2 ft | 6:52a / 7:33p |
| 11 | Fri | H 12:48a 8.0 ftL 6:56a -0.1 ftH 1:30p 7.7 ftL 7:18p 0.7 ft | 6:53a / 7:32p |
| 12 | Sat | H 1:37a 7.6 ftL 7:32a 0.5 ftH 2:01p 7.9 ftL 8:03p 0.4 ft | 6:54a / 7:30p |
| 13 | Sun | H 2:24a 7.2 ftL 8:06a 1.2 ftH 2:32p 7.9 ftL 8:47p 0.3 ft | 6:55a / 7:28p |
| 14 | Mon | H 3:13a 6.6 ftL 8:40a 1.9 ftH 3:02p 7.9 ftL 9:31p 0.3 ft | 6:56a / 7:26p |
| 15 | Tue | H 4:03a 6.1 ftL 9:14a 2.6 ftH 3:34p 7.7 ftL 10:18p 0.5 ft | 6:57a / 7:25p |
| 16 | Wed | H 4:59a 5.6 ftL 9:50a 3.3 ftH 4:10p 7.4 ftL 11:10p 0.7 ft | 6:58a / 7:23p |
| 17 | Thu | H 6:04a 5.3 ftL 10:30a 3.8 ftH 4:52p 7.0 ft | 6:59a / 7:21p |
| 18 | Fri | L 12:09a 1.0 ftH 7:24a 5.1 ftL 11:26a 4.2 ftH 5:48p 6.7 ft | 7a / 7:20p |
| 19 | Sat | L 1:17a 1.1 ftH 8:55a 5.1 ftL 12:49p 4.3 ftH 6:58p 6.5 ft | 7:01a / 7:18p |
| 20 | Sun | L 2:25a 1.1 ftH 10:02a 5.3 ftL 2:17p 4.2 ftH 8:11p 6.5 ft | 7:02a / 7:16p |
| 21 | Mon | L 3:24a 0.9 ftH 10:42a 5.6 ftL 3:25p 3.8 ftH 9:16p 6.6 ft | 7:03a / 7:15p |
| 22 | Tue | L 4:11a 0.7 ftH 11:11a 5.9 ftL 4:17p 3.2 ftH 10:12p 6.8 ft | 7:04a / 7:13p |
| 23 | Wed | L 4:50a 0.5 ftH 11:38a 6.3 ftL 5p 2.6 ftH 11:02p 7.0 ft | 7:05a / 7:11p |
| 24 | Thu | L 5:25a 0.5 ftH 12:04p 6.7 ftL 5:41p 1.9 ftH 11:48p 7.1 ft | 7:06a / 7:09p |
| 25 | Fri | L 5:58a 0.6 ftH 12:31p 7.2 ftL 6:20p 1.2 ft | 7:07a / 7:08p |
| 26 | Sat | H 12:34a 7.2 ftL 6:29a 0.8 ftH 12:57p 7.6 ftL 7p 0.6 ft | 7:08a / 7:06p |
| 27 | Sun | H 1:20a 7.1 ftL 7:02a 1.2 ftH 1:25p 8.0 ftL 7:41p 0.0 ft | 7:09a / 7:04p |
| 28 | Mon | H 2:08a 6.9 ftL 7:35a 1.7 ftH 1:55p 8.3 ftL 8:25p -0.4 ft | 7:10a / 7:03p |
| 29 | Tue | H 2:59a 6.6 ftL 8:10a 2.3 ftH 2:28p 8.4 ftL 9:12p -0.6 ft | 7:11a / 7:01p |
| 30 | Wed | H 3:55a 6.2 ftL 8:48a 2.8 ftH 3:06p 8.4 ftL 10:04p -0.6 ft | 7:12a / 6:59p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
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Nearby stations
Tide charts near Mad River Slough, Arcata Bay
About this data
Predictions for Mad River Slough, Arcata Bay 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.