Vashon Sea Conditions and Tide Table

Vashon 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 07:50 AM and sunset is at 04:19 PM.

Days 1–3 Weather Summary

Heavy rain (total 55mm), heaviest during Tue night. Cool air temperatures (max 15°C on Mon morning, min 6°C on Wed night). Winds decreasing (fresh winds from the SSW on Mon morning, light winds from the SSW by Mon night).

Days 4–6 Weather Summary

Moderate rain (total 13mm), heaviest on Thu morning. Low air temperatures (max 9°C on Thu afternoon, min 4°C on Thu night). Wind will be generally light.

Days 7–9 Weather Summary

Light rain (total 5mm) at first, then becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 6°C on Sun morning, min -1°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Heavy rain (total 45mm), heaviest during Fri night. Mild temperatures (max 9°C on Sat morning, min 3°C on Wed morning). Winds increasing (calm on Wed morning, fresh winds from the S by Fri night).

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
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
10:36AM3.03m
3:46AM2.76m
10:50AM3.03m
4:17AM2.95m
11:09AM3.03m
4:47AM3.08m
11:29AM3.04m
5:17AM3.17m
11:49AM3.07m
5:49AM3.23m
12:11PM3.09m
6:22AM3.26m
12:37PM3.10m
6:57AM3.29m
1:07PM3.07m
7:33AM3.30m
1:39PM2.98m
8:07AM3.31m
2:12PM2.80m
8:39AM3.29m
2:45PM2.52m
9:08AM3.25m
7:38PM2.04m
Low Tide
7:11PM0.70m
7:41PM0.51m
7:21AM2.70m
8:12PM0.37m
7:59AM2.78m
8:43PM0.26m
8:32AM2.83m
9:15PM0.19m
9:02AM2.85m
9:47PM0.15m
9:36AM2.85m
10:20PM0.16m
10:14AM2.83m
10:53PM0.21m
11:00AM2.78m
11:26PM0.33m
11:56AM2.68m
00:01AM0.53m
1:10PM2.49m
00:38AM0.81m
7:13PM2.04m
Wave
height (m) 
direction
period (s) 
mod rain
rain showers
rain showers
mod rain
mod rain
rain showers
clear
part cloud
light rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
clear
clear
part cloud
clear
clear
part cloud
light snow
light rain
rain showers
light rain
light rain
light rain
cloud
rain showers
light rain
heavy rain
mod rain
rain shwrs
rain shwrs
mod rain
mod rain
rain shwrs
clear
some clouds
light rain
light rain
light rain
light rain
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
light rain
rain shwrs
clear
clear
some clouds
clear
clear
some clouds
light snow
light rain
rain shwrs
light rain
light rain
light rain
cloudy
rain shwrs
light rain
heavy rain
 km/h
25
SSW
30
SW
15
SSW
10
S
25
SSW
30
SW
25
SW
20
SW
10
S
5
S
25
SSW
20
SW
5
WSW
10
SW
20
SSW
20
SSW
20
SSW
20
SSW
15
SSW
0
SE
0
W
0
N
5
SSW
0
ENE
5
NE
10
N
5
NNE
5
NE
10
SSW
5
SE
10
S
20
SSW
15
S
20
SSW
15
SSW
30
S
 mm 
9
2
1
8
9
23
3
5
2
2
4
2
2
1
2
3
1
5
3
2
1
20
max°C
15
12
9
11
12
12
8
8
7
6
9
8
7
6
5
5
5
6
6
4
2
3
3
1
3
3
2
4
8
7
7
6
5
6
7
8
Moonrise
3:49
4:57
6:05
7:10
8:10
9:00
9:40
10:11
10:35
10:55
11:12
11:28
Moonset
1:25
1:47
2:15
2:52
3:39
4:36
5:43
6:54
8:07
9:20
10:33
11:48
Sunrise
7:50
7:50
7:52
7:52
7:52
7:54
7:54
7:54
7:54
7:54
7:56
7:56
Sunset
4:19
4:19
4:19
4:20
4:20
4:21
4:21
4:22
4:22
4:22
4:22
4:23
Today's sea temperature in Vashon is
10.8° C
(Statistics for 15 Dec 1981-2005 – mean: 8.9 max: 10.2 min: 7.4°C)
Issued (local time): 3 am Monday 15 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest