Cosmopolis, Chehalis River Tide Chart & Fishing Times
Tide times, heights, and solunar bite windows for Cosmopolis, Chehalis River, Washington — August 2026 & September 2026. Every value is computed from NOAA harmonic constituents, the same offline engine that powers the Ebb app.
NOAA Station
9441158
Type
Subordinate (offset)
Coordinates
46.967, -123.778
Time Zone
Los Angeles
Sun, moon & bite windows
Sunday, August 2
Sunday, August 2
Sunrise 5:56 AM · Sunset 8:45 PM · Moon Waning Gibbous (83% lit)
High 4:05a · 9.7 ftLow 10:15a · -0.3 ftHigh 4:59p · 9.8 ftLow 10:44p · 1.7 ft
Major window ★★★
3:12a – 5:12a
Minor window ★★★
9:55a – 10:55a
Major window ★★★
3:25p – 5:25p
Minor window ★★★
9:51p – 10:51p
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.
Sunday, Aug 2 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 3:12a–5:12a, 3:25p–5:25p
Monday, Aug 3 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 3:56a–5:56a, 4:09p–6:09p
Wednesday, Aug 5 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:29a–7:29a, 5:49p–7:49p
Thursday, Aug 6 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 6:23a–8:23a, 6:46p–8:46p
Wednesday, Aug 19 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 5:30a–7:30a, 5:50p–7:50p
Thursday, Aug 20 ★★★
Major window stacks with dawn/dusk and a tide swing
Major windows: 6:19a–8:19a, 6:41p–8:41p
Tide table — August 2026
Cosmopolis, Chehalis River tides, August 2026
All high and low tides for Cosmopolis, Chehalis River, in local time (Los Angeles). Heights are feet above Mean Lower Low Water (MLLW).
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Sat | H 3:24a 10.2 ftL 9:44a -0.9 ftH 4:29p 9.5 ftL 9:59p 2.1 ft | 5:54a / 8:47p |
| 2 | Sun | H 4:05a 9.7 ftL 10:15a -0.3 ftH 4:59p 9.8 ftL 10:44p 1.7 ft | 5:56a / 8:45p |
| 3 | Mon | H 4:51a 9.0 ftL 10:47a 0.4 ftH 5:30p 10.1 ftL 11:35p 1.3 ft | 5:57a / 8:44p |
| 4 | Tue | H 5:43a 8.2 ftL 11:24a 1.3 ftH 6:06p 10.3 ft | 5:58a / 8:42p |
| 5 | Wed | L 12:31a 1.0 ftH 6:45a 7.4 ftL 12:05p 2.2 ftH 6:49p 10.5 ft | 5:59a / 8:41p |
| 6 | Thu | L 1:36a 0.6 ftH 8:02a 6.7 ftL 12:57p 3.1 ftH 7:42p 10.5 ft | 6:01a / 8:39p |
| 7 | Fri | L 2:48a 0.2 ftH 9:34a 6.6 ftL 2:06p 3.8 ftH 8:48p 10.6 ft | 6:02a / 8:38p |
| 8 | Sat | L 4:01a -0.4 ftH 11:01a 6.9 ftL 3:31p 4.1 ftH 9:59p 10.9 ft | 6:03a / 8:36p |
| 9 | Sun | L 5:07a -1.1 ftH 12:10p 7.6 ftL 4:49p 3.8 ftH 11:06p 11.3 ft | 6:04a / 8:35p |
| 10 | Mon | L 6:05a -1.7 ftH 1:03p 8.3 ftL 5:56p 3.3 ft | 6:06a / 8:33p |
| 11 | Tue | H 12:08a 11.7 ftL 6:55a -2.1 ftH 1:48p 9.0 ftL 6:53p 2.5 ft | 6:07a / 8:32p |
| 12 | Wed | H 1:05a 11.9 ftL 7:41a -2.3 ftH 2:28p 9.7 ftL 7:45p 1.8 ft | 6:08a / 8:30p |
| 13 | Thu | H 1:58a 11.8 ftL 8:22a -2.1 ftH 3:06p 10.2 ftL 8:34p 1.2 ft | 6:10a / 8:28p |
| 14 | Fri | H 2:47a 11.5 ftL 9:01a -1.6 ftH 3:42p 10.6 ftL 9:20p 0.8 ft | 6:11a / 8:27p |
| 15 | Sat | H 3:35a 10.8 ftL 9:39a -0.8 ftH 4:17p 10.8 ftL 10:07p 0.6 ft | 6:12a / 8:25p |
| 16 | Sun | H 4:22a 10.0 ftL 10:16a 0.1 ftH 4:52p 10.7 ftL 10:54p 0.6 ft | 6:14a / 8:23p |
| 17 | Mon | H 5:11a 9.0 ftL 10:52a 1.2 ftH 5:27p 10.5 ftL 11:44p 0.7 ft | 6:15a / 8:22p |
| 18 | Tue | H 6:04a 8.1 ftL 11:30a 2.2 ftH 6:05p 10.1 ft | 6:16a / 8:20p |
| 19 | Wed | L 12:37a 0.9 ftH 7:03a 7.2 ftL 12:12p 3.2 ftH 6:47p 9.7 ft | 6:17a / 8:18p |
| 20 | Thu | L 1:37a 1.1 ftH 8:16a 6.6 ftL 1:04p 4.0 ftH 7:38p 9.3 ft | 6:19a / 8:16p |
| 21 | Fri | L 2:46a 1.2 ftH 9:50a 6.5 ftL 2:16p 4.6 ftH 8:41p 9.0 ft | 6:20a / 8:14p |
| 22 | Sat | L 3:56a 1.0 ftH 11:16a 6.8 ftL 3:40p 4.7 ftH 9:50p 9.1 ft | 6:21a / 8:13p |
| 23 | Sun | L 4:57a 0.7 ftH 12:12p 7.3 ftL 4:50p 4.5 ftH 10:51p 9.4 ft | 6:23a / 8:11p |
| 24 | Mon | L 5:47a 0.2 ftH 12:51p 7.8 ftL 5:44p 4.0 ftH 11:44p 9.8 ft | 6:24a / 8:09p |
| 25 | Tue | L 6:28a -0.2 ftH 1:23p 8.3 ftL 6:29p 3.4 ft | 6:25a / 8:07p |
| 26 | Wed | H 12:30a 10.2 ftL 7:05a -0.5 ftH 1:52p 8.8 ftL 7:08p 2.8 ft | 6:27a / 8:05p |
| 27 | Thu | H 1:13a 10.5 ftL 7:37a -0.7 ftH 2:19p 9.3 ftL 7:45p 2.2 ft | 6:28a / 8:03p |
| 28 | Fri | H 1:53a 10.6 ftL 8:08a -0.6 ftH 2:46p 9.8 ftL 8:22p 1.6 ft | 6:29a / 8:01p |
| 29 | Sat | H 2:33a 10.5 ftL 8:39a -0.4 ftH 3:13p 10.3 ftL 8:59p 1.0 ft | 6:30a / 8p |
| 30 | Sun | H 3:13a 10.2 ftL 9:09a 0.1 ftH 3:40p 10.6 ftL 9:38p 0.6 ft | 6:32a / 7:58p |
| 31 | Mon | H 3:56a 9.7 ftL 9:41a 0.8 ftH 4:10p 10.9 ftL 10:21p 0.2 ft | 6:33a / 7:56p |
Last QuarterAug 5
New MoonAug 12
First QuarterAug 19
Full MoonAug 27
Tide table — September 2026
Cosmopolis, Chehalis River tides, September 2026
| Day | Tides (height above MLLW) | Sunrise / Sunset | |
|---|---|---|---|
| 1 | Tue | H 4:43a 9.1 ftL 10:15a 1.6 ftH 4:44p 11.0 ftL 11:10p 0.0 ft | 6:34a / 7:54p |
| 2 | Wed | H 5:37a 8.3 ftL 10:54a 2.4 ftH 5:23p 11.0 ft | 6:36a / 7:52p |
| 3 | Thu | L 12:06a 0.0 ftH 6:41a 7.6 ftL 11:40a 3.3 ftH 6:12p 10.7 ft | 6:37a / 7:50p |
| 4 | Fri | L 1:11a 0.1 ftH 8:01a 7.1 ftL 12:40p 4.0 ftH 7:15p 10.4 ft | 6:38a / 7:48p |
| 5 | Sat | L 2:27a 0.1 ftH 9:34a 7.1 ftL 2:04p 4.5 ftH 8:33p 10.3 ft | 6:40a / 7:46p |
| 6 | Sun | L 3:44a -0.1 ftH 10:55a 7.6 ftL 3:37p 4.3 ftH 9:54p 10.4 ft | 6:41a / 7:44p |
| 7 | Mon | L 4:51a -0.5 ftH 11:53a 8.4 ftL 4:54p 3.6 ftH 11:05p 10.8 ft | 6:42a / 7:42p |
| 8 | Tue | L 5:47a -0.8 ftH 12:39p 9.2 ftL 5:55p 2.7 ft | 6:43a / 7:40p |
| 9 | Wed | H 12:06a 11.1 ftL 6:34a -1.0 ftH 1:18p 9.9 ftL 6:48p 1.7 ft | 6:45a / 7:38p |
| 10 | Thu | H 1:01a 11.3 ftL 7:17a -0.9 ftH 1:54p 10.6 ftL 7:35p 0.9 ft | 6:46a / 7:36p |
| 11 | Fri | H 1:51a 11.2 ftL 7:55a -0.6 ftH 2:27p 11.1 ftL 8:18p 0.3 ft | 6:47a / 7:34p |
| 12 | Sat | H 2:38a 10.9 ftL 8:31a 0.0 ftH 2:59p 11.3 ftL 8:59p -0.1 ft | 6:49a / 7:32p |
| 13 | Sun | H 3:22a 10.4 ftL 9:05a 0.8 ftH 3:30p 11.3 ftL 9:40p -0.2 ft | 6:50a / 7:30p |
| 14 | Mon | H 4:06a 9.7 ftL 9:39a 1.6 ftH 4:02p 11.1 ftL 10:21p -0.1 ft | 6:51a / 7:28p |
| 15 | Tue | H 4:52a 9.0 ftL 10:14a 2.5 ftH 4:34p 10.7 ftL 11:03p 0.2 ft | 6:53a / 7:26p |
| 16 | Wed | H 5:40a 8.3 ftL 10:50a 3.4 ftH 5:10p 10.2 ftL 11:51p 0.6 ft | 6:54a / 7:24p |
| 17 | Thu | H 6:35a 7.6 ftL 11:31a 4.1 ftH 5:52p 9.6 ft | 6:55a / 7:22p |
| 18 | Fri | L 12:46a 1.1 ftH 7:43a 7.1 ftL 12:24p 4.7 ftH 6:45p 9.1 ft | 6:56a / 7:20p |
| 19 | Sat | L 1:52a 1.5 ftH 9:09a 7.0 ftL 1:42p 5.1 ftH 7:55p 8.8 ft | 6:58a / 7:18p |
| 20 | Sun | L 3:06a 1.5 ftH 10:31a 7.3 ftL 3:15p 5.0 ftH 9:13p 8.8 ft | 6:59a / 7:16p |
| 21 | Mon | L 4:12a 1.3 ftH 11:23a 7.8 ftL 4:27p 4.5 ftH 10:22p 9.1 ft | 7a / 7:14p |
| 22 | Tue | L 5:04a 1.0 ftH 12p 8.4 ftL 5:20p 3.8 ftH 11:18p 9.5 ft | 7:02a / 7:12p |
| 23 | Wed | L 5:46a 0.7 ftH 12:31p 9.1 ftL 6:04p 2.9 ft | 7:03a / 7:10p |
| 24 | Thu | H 12:07a 9.9 ftL 6:23a 0.5 ftH 1p 9.8 ftL 6:44p 2.1 ft | 7:04a / 7:08p |
| 25 | Fri | H 12:53a 10.2 ftL 6:58a 0.4 ftH 1:28p 10.4 ftL 7:21p 1.1 ft | 7:06a / 7:06p |
| 26 | Sat | H 1:36a 10.4 ftL 7:30a 0.6 ftH 1:56p 11.0 ftL 7:58p 0.3 ft | 7:07a / 7:04p |
| 27 | Sun | H 2:19a 10.4 ftL 8:03a 1.0 ftH 2:25p 11.5 ftL 8:37p -0.4 ft | 7:08a / 7:02p |
| 28 | Mon | H 3:03a 10.2 ftL 8:37a 1.5 ftH 2:56p 11.8 ftL 9:17p -0.9 ft | 7:10a / 7p |
| 29 | Tue | H 3:50a 9.8 ftL 9:12a 2.1 ftH 3:29p 11.9 ftL 10:01p -1.0 ft | 7:11a / 6:58p |
| 30 | Wed | H 4:40a 9.3 ftL 9:51a 2.8 ftH 4:08p 11.8 ftL 10:50p -0.9 ft | 7:12a / 6:56p |
Last QuarterSep 3
New MoonSep 10
First QuarterSep 18
Full MoonSep 26
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Nearby stations
Tide charts near Cosmopolis, Chehalis River
About this data
Predictions for Cosmopolis, Chehalis River 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.