Duwamish Waterway Sea Conditions and Tide Table

Duwamish Waterway Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 06:11 AM and sunset is at 08:05 PM.

Days 1–3 Weather Summary

Some drizzle, heaviest during Sat night. Warm air temperatures (max 21°C on Sat afternoon, min 6°C on Sat night). Wind will be generally light.

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Tue night. Cool air temperatures (max 19°C on Tue afternoon, min 6°C on Mon morning). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 5mm), mostly falling on Thu night. Very mild (max 13°C on Thu afternoon, min 7°C on Sat night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 14°C on Tue afternoon, min 4°C on Sun night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
3:21PM2.45m
4:02AM3.19m
4:17PM2.62m
4:21AM3.15m
5:04PM2.78m
5:47PM2.94m
6:28PM3.07m
5:14AM3.08m
7:09PM3.18m
5:36AM3.06m
7:51PM3.25m
6:01AM3.04m
8:37PM3.29m
6:29AM3.00m
9:29PM3.30m
7:01AM2.92m
10:26PM3.30m
7:41AM2.80m
11:27PM3.32m
8:37AM2.64m
00:24AM3.36m
Low Tide
10:03AM1.25m
9:28PM0.77m
10:31AM0.96m
10:10PM0.94m
10:57AM0.66m
10:49PM1.12m
11:22AM0.37m
11:25PM1.31m
11:49AM0.12m
00:02AM1.51m
12:18PM-0.10m
00:39AM1.69m
12:50PM-0.27m
1:17AM1.87m
1:25PM-0.38m
2:00AM2.04m
2:05PM-0.42m
2:49AM2.19m
2:49PM-0.39m
3:48AM2.28m
3:39PM-0.30m
5:01AM2.28m
4:36PM-0.16m
Wave
height (m) 
direction
period (s) 
clear
clear
clear
part cloud
cloud
rain showers
clear
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
rain showers
rain showers
rain showers
part cloud
cloud
cloud
light rain
cloud
part cloud
part cloud
cloud
light rain
rain showers
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
some clouds
cloudy
rain shwrs
clear
some clouds
some clouds
clear
some clouds
cloudy
cloudy
cloudy
rain shwrs
rain shwrs
rain shwrs
some clouds
cloudy
cloudy
light rain
cloudy
some clouds
some clouds
cloudy
light rain
rain shwrs
some clouds
rain shwrs
rain shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
 km/h
10
ENE
15
ENE
5
NE
5
SSE
20
SW
15
SSW
10
WSW
10
N
10
NE
10
N
15
NNW
5
NNE
0
NE
15
SW
15
SW
15
SSW
15
SSW
5
S
5
SW
10
SW
0
N
0
SE
5
S
10
S
10
S
10
S
15
SSW
15
SW
10
WNW
5
S
5
WSW
10
N
5
S
0
ESE
10
N
5
NNE
 mm 
1.0
2.0
1.0
1.0
1.0
2.0
2.0
1.0
1.0
max°C
15
19
16
17
21
10
11
14
11
10
15
11
14
19
14
11
14
12
12
13
10
10
13
13
12
11
10
11
11
9
9
12
10
10
14
12
Moonrise
3:53
4:59
6:05
7:12
8:21
9:33
10:46
11:58
1:04
1:59
2:42
Moonset
4:56
5:09
5:23
5:36
5:51
6:08
6:30
6:58
7:37
8:28
9:34
10:50
Sunrise
6:11
6:09
6:07
6:05
6:03
6:03
6:01
5:58
5:56
5:56
5:54
5:52
Sunset
8:05
8:06
8:07
8:08
8:09
8:12
8:13
8:15
8:15
8:16
8:19
8:20
Today's sea temperature in Duwamish Waterway is 10.1 °C (Statistics for 19 Apr 1981-2005 – mean: 9.6 max: 10.8 min: 8.6°C)
Nearest