Duwamish Waterway Tide Times and Tide Chart, WA

Today's tide

Estimated curve between high and low timesNightHeight above MLLW

−2 ft0 ft2 ft4 ft6 ft8 ft10 ftNOW 1:572:56 AMLow · −0.2 ft10:42 AMHigh · 10.3 ft4:39 PMLow · 7.5 ft8:29 PMHigh · 8.3 ft

Heights and times are estimated from Seattle, Puget Sound using NOAA offsets. Only the high and low points are official; the curve between them is drawn by us.

Today's tides

ft above MLLW

Low2:56 AM−0.2 ft
High10:42 AM10.3 ft
Low4:39 PM7.5 ft
High8:29 PM8.3 ft

Tide times for Duwamish Waterway
Tide	Time	Height
Low	2:56 AM	−0.2 ft
High	10:42 AM	10.3 ft
Low	4:39 PM	7.5 ft
High	8:29 PM	8.3 ft

Sunrise

7:30 AM

First light 6:59

Sunset

6:21 PM

Last light 6:52

Moon

33%

Waxing crescent

Tide range

10.5 ft

Mean 7.2 ft

Best windows today

Plan the week →

Fishing
5:00 to 7:00 PM
Today's best window (7:00 to 10:00 AM) has passed. Dawn light with the incoming tide around the 10:42 AM high. Second window 5:00 to 7:00 PM.
Tidepools & shelling
No daylight low today
No daylight low today.
Surfing
Next: Sat 7:00 to 9:00 AM
Earlier today: 7:00 to 8:00 AM
Today's best window (7:00 to 8:00 AM) has passed.
Shallow boat launch
Avoid 1:00 to 5:00 AM
Water drops under 1.5 ft from 1:00 to 5:00 AM. Plan to be back on the trailer before then.

Plan the week

Moving water around the turn often fishes best. Local species and bait matter more than any chart.

Next 7 days

October calendar →

High and low tides for the next 7 days, heights in ft
Day	Tide 1	Tide 2	Tide 3	Tide 4	Range, ft
TodayFri 16	L2:56a−0.2	H10:42a10.3	L4:39p7.5	H8:29p8.3	10.5
SatOct 17	L3:45a0.4	H11:49a10.1	L6:42p7.3	H9:29p7.7	9.7
SunOct 18	L4:41a1.0	H12:57p10.0	L8:04p6.7	H10:53p7.3	9.0
MonOct 19	L5:44a1.6	H1:52p10.1	L8:45p6.0		8.6
TueOct 20	H12:23a7.2	L6:49a1.9	H2:31p10.3	L9:11p5.2	8.3
WedOct 21	H1:42a7.5	L7:48a2.2	H2:59p10.5	L9:33p4.2	8.2
ThuOct 22	H2:47a8.1	L8:41a2.6	H3:23p10.7	L9:55p3.0	8.1

Tide predictions and observations: NOAA National Ocean Service, Center for Operational Oceanographic Products and Services (CO-OPS), station 9447029.

Nearby stations

Currents

Harbor Island West

Max ebb1:10 AM 0.5 kn
Slack4:01 AM
Max flood6:39 AM 0.3 kn
Slack9:33 AM
Max ebb12:33 PM 0.2 kn
Slack3:12 PM
Slack6:24 PM

Current predictions for Harbor Island West, 4 mi away. Currents near inlets can be strong. Not for navigation.

Station details

Datum: Mean lower low water
Predictions: NOAA subordinate, from Seattle, Puget Sound
Live gauge: None
Coordinates: 47.535° N, 122.322° W
Time zone: Pacific, UTC−7
Station ID: NOAA 9447029

About the tides at Duwamish Waterway

Duwamish Waterway has a mixed tide. The two daily highs, and especially the two lows, can differ a lot in height. The pattern follows the reference station at Seattle, Puget Sound. With a mean range of about 7.2 ft, the shoreline here changes a lot between high and low water. Over the next two weeks the biggest daily range, 14.3 ft, comes on October 28, and the smallest, 5.9 ft, on October 26. Looking a year ahead, predictions peak at 12.7 ft on January 25 and bottom out at −3.7 ft on December 24.

Tides here are worked out from the reference station at Seattle, Puget Sound, with NOAA time and height corrections. Times are good for planning, but local wind can shift them. The nearest other station is Lockheed Shipyard, 4 mi away, where high tide comes about 11 min earlier. For tidal currents, see Harbor Island West.

Predictions are based on Seattle, Puget Sound.

Height unitsft mAdd this tide widget to your site. It's free.Week planner Printable October calendar

Tide predictions and water levels from NOAA CO-OPS. For planning only, not for navigation. Real water levels can differ because of wind, air pressure and river flow. Always check conditions on site.

Duwamish Waterway tide times