Duwamish Waterway, Eighth Ave. South tide chart
Washington · near Boulevard Park (2 mi) · NOAA station 9447029 · times in local time (PDT)
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Tides today, Sunday, October 11
- High 6:35 AM 10.4 ft
- Low 12:09 PM 4.3 ft
- High 5:42 PM 10.8 ft
Were today's predicted times right where you were?
Sunrise 7:23 AM · Sunset 6:30 PM · New moon (0%)
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Fishing forecast
Hour by hour at Duwamish Waterway, Eighth Ave. SouthBest times
1:00 AM–2:00 AM and 6:00 PM–7:00 PM
New moon (0% lit)
Rain radar
Biting around here in October
- Coho salmon In seasonNearshore and bays on the incoming tide
- Rockfish In seasonJetties and reefs, slower tides
General seasonal guide for Pacific Northwest. Seasons, sizes and limits vary, so check your state rules before keeping fish.
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Weather and conditions at Duwamish Waterway, Eighth Ave. South
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Marine forecast: Puget Sound and Hood Canal
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- Water temperature —
Marine radio: weather channels and VHF
NOAA Weather Radio
- 162.550 MHz WX1 KHB60, Seattle, WA (10 mi)
- 162.425 MHz WX4 WWG24, Puget Sound Marine, WA (44 mi)
To get alerts on a weather alert radio, program county code 053033 (King).
VHF marine channels
- Ch 16 Distress, safety and calling
- Ch 9 Boater-to-boater calling
- Ch 22A Coast Guard safety broadcasts
- Ch 13 Bridge-to-bridge (big ships, drawbridges)
- Ch 68, 69, 71, 72, 78A Recreational chat
Weather radio broadcasts are continuous; VHF channels are the US standard. Local harbors and bridges may use others, so check your chart.
Live readings from NOAA and the National Weather Service, loaded when you open this page.
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Tide times this week
| Day | High and low tides | Sunrise / sunset | Moon |
|---|---|---|---|
| Sun Oct 11 | H 6:35 AM 10.4 ftL 12:09 PM 4.3 ftH 5:42 PM 10.8 ft | 7:23 AM / 6:30 PM | New moon (0%) |
| Mon Oct 12 | L 12:28 AM -0.6 ftH 7:22 AM 10.7 ftL 12:52 PM 5.3 ftH 6:09 PM 10.4 ft | 7:24 AM / 6:28 PM | New moon (2%) |
| Tue Oct 13 | L 1:01 AM -0.9 ftH 8:09 AM 10.8 ftL 1:37 PM 6.1 ftH 6:38 PM 10.0 ft | 7:26 AM / 6:26 PM | Waxing crescent (6%) |
| Wed Oct 14 | L 1:35 AM -0.9 ftH 8:56 AM 10.7 ftL 2:26 PM 6.8 ftH 7:10 PM 9.5 ft | 7:27 AM / 6:25 PM | Waxing crescent (13%) |
| Thu Oct 15 | L 2:14 AM -0.7 ftH 9:46 AM 10.6 ftL 3:23 PM 7.3 ftH 7:46 PM 8.9 ft | 7:28 AM / 6:23 PM | Waxing crescent (20%) |
| Fri Oct 16 | L 2:56 AM -0.2 ftH 10:42 AM 10.3 ftL 4:39 PM 7.5 ftH 8:29 PM 8.3 ft | 7:30 AM / 6:21 PM | Waxing crescent (30%) |
| Sat Oct 17 | L 3:45 AM 0.4 ftH 11:49 AM 10.1 ftL 6:42 PM 7.3 ftH 9:29 PM 7.8 ft | 7:31 AM / 6:19 PM | First quarter (40%) |
Tidal currents near Duwamish Waterway, Eighth Ave. South
From NOAA's current predictions for Harbor Island West at 9 ft depth, 3.8 miles away. Slack is when the current turns and the water is calmest; flood runs in with the rising tide and ebb runs out with the falling tide. Times are the peak of each run, in knots. The flood runs toward the S (178°) and the ebb toward the N (1°). The strongest current this week is 0.7 knots.
| Day | Slack water and peak currents |
|---|---|
| Sun Oct 11 | Slack 1:33 AMFlood 4:03 AM 0.3 knSlack 7:58 AMEbb 10:28 AM 0.4 knSlack 1:12 PMFlood 3:31 PM 0.2 knSlack 6:02 PMEbb 10:36 PM 0.7 kn |
| Mon Oct 12 | Slack 1:59 AMFlood 4:32 AM 0.3 knSlack 8:30 AMEbb 11:09 AM 0.3 knSlack 1:40 PMFlood 3:57 PM 0.2 knSlack 6:19 PMEbb 11:15 PM 0.7 kn |
| Tue Oct 13 | Slack 2:22 AMFlood 5:03 AM 0.3 knSlack 8:46 AMEbb 11:47 AM 0.3 knSlack 2:06 PMFlood 4:08 PM 0.1 knSlack 6:30 PMEbb 11:53 PM 0.7 kn |
| Wed Oct 14 | Slack 2:48 AMFlood 5:35 AM 0.4 knSlack 8:54 AMEbb 12:19 PM 0.2 knSlack 2:29 PMSlack 6:27 PM |
| Thu Oct 15 | Ebb 12:30 AM 0.6 knSlack 3:20 AMFlood 6:07 AM 0.3 knSlack 9:10 AMEbb 12:43 PM 0.2 knSlack 2:50 PMSlack 6:10 PM |
| Fri Oct 16 | Ebb 1:10 AM 0.5 knSlack 4:01 AMFlood 6:39 AM 0.3 knSlack 9:33 AMEbb 12:33 PM 0.2 knSlack 3:12 PMSlack 6:24 PM |
| Sat Oct 17 | Ebb 1:59 AM 0.4 knSlack 4:55 AMFlood 7:16 AM 0.2 knSlack 9:58 AMEbb 12:12 PM 0.2 knSlack 3:38 PMFlood 5:15 PM 0.1 knSlack 6:56 PM |
Current predictions can differ a lot over short distances: check the station location on NOAA before planning a passage.
Best fishing times at Duwamish Waterway, Eighth Ave. South
The bite score (0 to 100) adds up what anglers watch most: moving water (a tide running harder than usual here scores higher), solunar periods (major periods of about two hours centred on the moon overhead or underfoot, minor periods of about an hour on moonrise and moonset), dawn and dusk light, and how close it is to the new or full moon. Best times are the stretches of the day scoring near that day's top.
| Day | Bite score | Best times | Major periods | Minor periods |
|---|---|---|---|---|
| Sun Oct 11 | 83 · Excellent | 1:00 AM–2:00 AM, 6:00 PM–7:00 PM | 12:27 AM–2:27 AM, 12:50 PM–2:50 PM | 8:25 AM–9:25 AM, 6:04 PM–7:04 PM |
| Mon Oct 12 | 72 · Good | 2:00 AM–3:00 AM, 2:00 PM–3:00 PM | 1:13 AM–3:13 AM, 1:36 PM–3:36 PM | 9:37 AM–10:37 AM, 6:27 PM–7:27 PM |
| Tue Oct 13 | 66 · Good | 3:00 AM–4:00 AM, 3:00 PM–4:00 PM | 2:00 AM–4:00 AM, 2:25 PM–4:25 PM | 10:47 AM–11:47 AM, 6:56 PM–7:56 PM |
| Wed Oct 14 | 57 · Good | 3:00 AM–5:00 AM | 2:50 AM–4:50 AM, 3:15 PM–5:15 PM | 11:53 AM–12:53 PM, 7:34 PM–8:34 PM |
| Thu Oct 15 | 48 · Fair | 4:00 AM–6:00 AM, 5:00 PM–6:00 PM | 3:40 AM–5:40 AM, 4:06 PM–6:06 PM | 12:50 PM–1:50 PM, 8:21 PM–9:21 PM |
| Fri Oct 16 | 49 · Fair | 5:00 AM–7:00 AM | 4:31 AM–6:31 AM, 4:56 PM–6:56 PM | 1:38 PM–2:38 PM, 9:18 PM–10:18 PM |
| Sat Oct 17 | 53 · Fair | 6:00 AM–7:00 AM | 5:21 AM–7:21 AM, 5:46 PM–7:46 PM | 2:15 PM–3:15 PM, 10:22 PM–11:22 PM |
A planning aid, not a guarantee. Wind, water clarity, bait and pressure changes matter too; the forecast above adds live wind and pressure when you open the page.
Best daylight low tides in the next two weeks
The lowest water that falls between sunrise and sunset, for tide pooling and beachcombing.
- 2.2 ft at 7:48 AM on Wednesday, October 21
- 2.6 ft at 8:41 AM on Thursday, October 22
- 3.1 ft at 9:29 AM on Friday, October 23
- 3.7 ft at 10:13 AM on Saturday, October 24
- 4.3 ft at 12:09 PM on Sunday, October 11
- 5.3 ft at 12:52 PM on Monday, October 12
Tide table: October 11 to November 10, 2026
Full 2026 tide table Full 2027 tide table
| Day | High and low tides | Sunrise / sunset |
|---|---|---|
| Sun Oct 11 | H 6:35 AM 10.4 ftL 12:09 PM 4.3 ftH 5:42 PM 10.8 ft | 7:23 AM / 6:30 PM |
| Mon Oct 12 | L 12:28 AM -0.6 ftH 7:22 AM 10.7 ftL 12:52 PM 5.3 ftH 6:09 PM 10.4 ft | 7:24 AM / 6:28 PM |
| Tue Oct 13 | L 1:01 AM -0.9 ftH 8:09 AM 10.8 ftL 1:37 PM 6.1 ftH 6:38 PM 10.0 ft | 7:26 AM / 6:26 PM |
| Wed Oct 14 | L 1:35 AM -0.9 ftH 8:56 AM 10.7 ftL 2:26 PM 6.8 ftH 7:10 PM 9.5 ft | 7:27 AM / 6:25 PM |
| Thu Oct 15 | L 2:14 AM -0.7 ftH 9:46 AM 10.6 ftL 3:23 PM 7.3 ftH 7:46 PM 8.9 ft | 7:28 AM / 6:23 PM |
| Fri Oct 16 | L 2:56 AM -0.2 ftH 10:42 AM 10.3 ftL 4:39 PM 7.5 ftH 8:29 PM 8.3 ft | 7:30 AM / 6:21 PM |
| Sat Oct 17 | L 3:45 AM 0.4 ftH 11:49 AM 10.1 ftL 6:42 PM 7.3 ftH 9:29 PM 7.8 ft | 7:31 AM / 6:19 PM |
| Sun Oct 18 | L 4:41 AM 1.0 ftH 12:57 PM 10.0 ftL 8:04 PM 6.7 ftH 10:53 PM 7.3 ft | 7:33 AM / 6:17 PM |
| Mon Oct 19 | L 5:44 AM 1.6 ftH 1:52 PM 10.1 ftL 8:45 PM 6.0 ft | 7:34 AM / 6:15 PM |
| Tue Oct 20 | H 12:23 AM 7.2 ftL 6:49 AM 1.9 ftH 2:31 PM 10.3 ftL 9:11 PM 5.2 ft | 7:36 AM / 6:13 PM |
| Wed Oct 21 | H 1:42 AM 7.5 ftL 7:48 AM 2.2 ftH 2:59 PM 10.5 ftL 9:33 PM 4.2 ft | 7:37 AM / 6:12 PM |
| Thu Oct 22 | H 2:47 AM 8.1 ftL 8:41 AM 2.6 ftH 3:23 PM 10.7 ftL 9:55 PM 3.0 ft | 7:39 AM / 6:10 PM |
| Fri Oct 23 | H 3:43 AM 8.8 ftL 9:29 AM 3.1 ftH 3:45 PM 10.8 ftL 10:21 PM 1.6 ft | 7:40 AM / 6:08 PM |
| Sat Oct 24 | H 4:33 AM 9.6 ftL 10:13 AM 3.7 ftH 4:08 PM 11.0 ftL 10:50 PM 0.3 ft | 7:42 AM / 6:06 PM |
| Sun Oct 25 | H 5:22 AM 10.3 ftL 10:56 AM 4.5 ftH 4:34 PM 11.2 ftL 11:24 PM -1.0 ft | 7:43 AM / 6:05 PM |
| Mon Oct 26 | H 6:11 AM 10.9 ftL 11:40 AM 5.3 ftH 5:02 PM 11.2 ft | 7:45 AM / 6:03 PM |
| Tue Oct 27 | L 12:01 AM -2.0 ftH 7:01 AM 11.4 ftL 12:26 PM 6.2 ftH 5:34 PM 11.2 ft | 7:46 AM / 6:01 PM |
| Wed Oct 28 | L 12:42 AM -2.7 ftH 7:54 AM 11.6 ftL 1:15 PM 6.8 ftH 6:10 PM 10.9 ft | 7:48 AM / 6:00 PM |
| Thu Oct 29 | L 1:27 AM -2.9 ftH 8:50 AM 11.6 ftL 2:09 PM 7.4 ftH 6:52 PM 10.5 ft | 7:49 AM / 5:58 PM |
| Fri Oct 30 | L 2:16 AM -2.6 ftH 9:51 AM 11.5 ftL 3:14 PM 7.6 ftH 7:42 PM 9.9 ft | 7:51 AM / 5:56 PM |
| Sat Oct 31 | L 3:10 AM -1.9 ftH 10:57 AM 11.3 ftL 4:35 PM 7.5 ftH 8:47 PM 9.1 ft | 7:52 AM / 5:55 PM |
| Sun Nov 1 | L 3:09 AM -0.9 ftH 11:05 AM 11.1 ftL 5:14 PM 6.9 ftH 9:13 PM 8.3 ft | 6:54 AM / 4:53 PM |
| Mon Nov 2 | L 4:14 AM 0.2 ftH 12:05 PM 11.2 ftL 6:37 PM 5.7 ftH 10:57 PM 7.8 ft | 6:55 AM / 4:52 PM |
| Tue Nov 3 | L 5:23 AM 1.2 ftH 12:54 PM 11.2 ftL 7:33 PM 4.2 ft | 6:57 AM / 4:50 PM |
| Wed Nov 4 | H 12:40 AM 7.9 ftL 6:32 AM 2.3 ftH 1:34 PM 11.3 ftL 8:17 PM 2.8 ft | 6:58 AM / 4:49 PM |
| Thu Nov 5 | H 2:07 AM 8.4 ftL 7:37 AM 3.2 ftH 2:06 PM 11.3 ftL 8:54 PM 1.4 ft | 7:00 AM / 4:47 PM |
| Fri Nov 6 | H 3:17 AM 9.2 ftL 8:35 AM 4.2 ftH 2:34 PM 11.2 ftL 9:27 PM 0.2 ft | 7:01 AM / 4:46 PM |
| Sat Nov 7 | H 4:15 AM 10.0 ftL 9:28 AM 5.1 ftH 3:00 PM 11.1 ftL 9:57 PM -0.6 ft | 7:03 AM / 4:44 PM |
| Sun Nov 8 | H 5:06 AM 10.6 ftL 10:17 AM 5.9 ftH 3:25 PM 10.8 ftL 10:27 PM -1.2 ft | 7:04 AM / 4:43 PM |
| Mon Nov 9 | H 5:51 AM 11.1 ftL 11:04 AM 6.6 ftH 3:53 PM 10.5 ftL 10:57 PM -1.6 ft | 7:06 AM / 4:42 PM |
| Tue Nov 10 | H 6:32 AM 11.4 ftL 11:50 AM 7.1 ftH 4:22 PM 10.1 ftL 11:30 PM -1.6 ft | 7:07 AM / 4:40 PM |
Heights are in feet above mean lower low water (MLLW), the zero line on most US nautical charts. A minus height means the water drops below that line.
Around Duwamish Waterway, Eighth Ave. South
Beaches
- Pritchard Island Beach 2.8 mi
- Rumford Beach 3.3 mi
- Lowman Beach 3.5 mi
- Southwest Brace Point Drive Street End 3.6 mi
Marinas
- South Park Marina 0.7 mi
- Harbor Island Marina 2.7 mi
- Parkshore Marina 2.9 mi
- Spinnaker Bay Marina 3.0 mi
Fishing piers and docks
- Stanley Moses Landing 0.7 mi
- Tilbury Cement Wharf 1.7 mi
- Manson Construction Wharf 1.7 mi
- Lefarge Cement Wharf 1.8 mi
Distances from the tide station. Places from © OpenStreetMap contributors; links open in Google Maps.
Fish in the waters around Duwamish Waterway, Eighth Ave. South
34 kinds of fish, sharks and rays have been recorded within 15 km (about 9 miles) of this spot, most often Prickly Sculpin, Bluntnose Sixgill Shark, Coastrange Sculpin. The bar shows how many records each has.
- Prickly Sculpin Cottus asperSalt water · 33 records
- Bluntnose Sixgill Shark Hexanchus griseusSalt water · 30 records
- Coastrange Sculpin Cottus aleuticusSalt water · 29 records
- Peamouth Mylocheilus caurinusBrackish water · 17 records
- Brown Rockfish Sebastes auriculatusSalt water · 16 records
- Yellow Perch Perca flavescensBrackish water · 15 records
- Sockeye Salmon Oncorhynchus nerkaSalt water · 15 records
- Longfin Smelt Spirinchus thaleichthysSalt water · 14 records
- Shiner Perch Cymatogaster aggregataSalt water · 13 records
- Pacific Cod Gadus macrocephalusSalt water · 11 records
- Saddleback Gunnel Pholis ornataSalt water · 11 records
- Pacific Staghorn Sculpin Leptocottus armatusSalt water · 10 records
- Tube-snout Aulorhynchus flavidusSalt water · 10 records
- Northern Clingfish Gobiesox maeandricusSalt water · 9 records
- Three-spined Stickleback Gasterosteus aculeatusSalt water · 9 records
- Coho Salmon Oncorhynchus kisutchSalt water · 9 records
- Rock Sole Lepidopsetta bilineataSalt water · 9 records
- Tidepool Sculpin Oligocottus maculosusSalt water · 8 records
- Quillback Rockfish Sebastes maligerSalt water · 8 records
- Striped Seaperch Embiotoca lateralisSalt water · 8 records
- Penpoint Gunnel Apodichthys flavidusSalt water · 8 records
- King Salmon Oncorhynchus tshawytschaSalt water · 8 records
- Padded Sculpin Artedius fenestralisSalt water · 7 records
- Pile Perch Rhacochilus vaccaSalt water · 7 records
- C-O Sole Pleuronichthys coenosusSalt water · 7 records
- English Sole Parophrys vetulusSalt water · 7 records
- Crescent Gunnel Pholis laetaSalt water · 7 records
- Silverspotted Sculpin Blepsias cirrhosusSalt water · 6 records
- Tench Tinca tincaBrackish water · 6 records
- Pumpkinseed Lepomis gibbosusBrackish water · 6 records
- High Cockscomb Anoplarchus purpurescensSalt water · 6 records
- Speckled Sanddab Citharichthys stigmaeusSalt water · 6 records
- Flathead Sole Hippoglossoides elassodonSalt water · 6 records
- Slender Sole Lyopsetta exilisSalt water · 6 records
Fresh water nearby · 6 species
Rivers, creeks and ponds within 15 km, not the tidal water itself.
- Northern Pikeminnow Ptychocheilus oregonensisFresh water · 12 records
- Brown Bullhead Ameiurus nebulosusFresh water · 10 records
- Largemouth Bass Micropterus salmoidesFresh water · 10 records
- Black Crappie Pomoxis nigromaculatusFresh water · 7 records
- Torrent Sculpin Cottus rhotheusFresh water · 6 records
- Redside Shiner Richardsonius balteatusFresh water · 6 records
Records from GBIF datasets released under CC0 or CC BY 4.0 (museum collections, surveys and community sightings). It shows what has been found here, not a complete list. Check your state rules before keeping fish.
About the tides at Duwamish Waterway, Eighth Ave. South
Duwamish Waterway, Eighth Ave. South gets two high tides and two low tides almost every day, and the two highs are close in height. Over the next month the water typically rises or falls about 7.3 ft between a high and the next low.
The biggest swings in this window come around Thursday, October 29, when the day's range reaches 14.5 ft, and again around Tuesday, November 10 (13.0 ft). Those spring tides follow the new and full moon by a day or two. The calmest day is Thursday, October 22, with only 8.1 ft between the day's highest and lowest water.
The lowest tide of the month is -2.9 ft at 1:27 AM on Thursday, October 29. There are 16 minus tides (lows below the chart's zero line) in this window: the best times for tide pools, clamming and walking the flats.
The highest predicted tide is 11.6 ft at 7:54 AM on Wednesday, October 28. Onshore wind or a storm can push the real water level above that.
This is a subordinate station: NOAA calculates its times and heights by adjusting a nearby reference station, so expect them to be a few minutes or a few tenths of a foot off on any given day.
Station details
- NOAA station ID: 9447029
- Type: subordinate (adjusted from a reference station)
- Location: 47.5350, -122.3220
Reference station: Seattle (Madison St.), Elliott Bay.