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 — and sunset is at —.

Days 1–4 Weather Summary

Heavy rain (total 82mm), heaviest during Tue night. Cool air temperatures (max 15°C on Mon morning, min 7°C on Tue morning). Winds increasing (light winds from the SSE on Sun night, strong winds from the SW by Tue night).

Days 5–7 Weather Summary

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

Days 8–10 Weather Summary

A moderate fall of snow, heaviest on Sun afternoon. Turning milder with moderate rain (total 10mm), heaviest on Sun night. Mild temperatures (max 6°C on Sat night, min 1°C on Sun afternoon). Wind will be generally light.

Days 11–13 Weather Summary

A dusting of snow. Milder later with heavy rain (total 35mm) on Fri afternoon. Mild temperatures (max 8°C on Fri night, min 1°C on Thu night). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Fri
26
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
AM
PM
Wave Height Map
High Tide
2:56AM2.90m
12:58PM3.36m
3:53AM3.19m
1:27PM3.27m
4:40AM3.43m
1:57PM3.21m
5:20AM3.61m
2:29PM3.18m
5:56AM3.72m
3:02PM3.17m
6:29AM3.80m
3:38PM3.16m
7:01AM3.85m
4:16PM3.13m
7:31AM3.89m
4:58PM3.06m
8:02AM3.92m
5:45PM2.94m
8:32AM3.93m
6:41PM2.77m
9:03AM3.93m
7:50PM2.58m
9:34AM3.90m
Low Tide
7:47PM0.44m
7:26AM2.14m
8:24PM0.17m
8:31AM2.33m
8:58PM-0.05m
9:27AM2.45m
9:30PM-0.22m
10:13AM2.52m
10:04PM-0.35m
10:54AM2.55m
10:37PM-0.43m
11:32AM2.54m
11:11PM-0.48m
12:11PM2.51m
11:47PM-0.46m
12:52PM2.43m
00:23AM-0.38m
1:37PM2.30m
1:00AM-0.21m
2:25PM2.10m
1:40AM0.05m
3:17PM1.82m
2:22AM0.42m
4:10PM1.46m
Wave
height (m) 
direction
period (s) 
heavy rain
mod rain
rain showers
part cloud
mod rain
heavy rain
rain showers
clear
part cloud
light rain
light rain
light rain
light rain
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
mod snow
mod rain
part cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
cloud
mod rain
light rain
light rain
snow showers
rain showers
heavy rain
heavy rain
mod rain
rain shwrs
some clouds
mod rain
heavy rain
rain shwrs
clear
some clouds
light rain
light rain
light rain
light rain
some clouds
some clouds
some clouds
cloudy
light rain
light rain
light rain
mod snow
mod rain
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
cloudy
mod rain
light rain
light rain
snow shwrs
rain shwrs
heavy rain
 km/h
10
SSW
30
SSW
30
SW
20
SSW
10
S
25
SSW
40
SW
25
SW
25
SSW
10
S
10
SSE
25
SSW
20
SSW
10
WSW
5
S
20
SSW
20
SSW
20
SSW
15
S
0
NW
10
NNW
20
SSW
25
SSW
20
SSW
5
S
0
NE
5
NNW
10
S
5
SSE
0
NE
5
SE
10
SE
20
SSW
20
SSW
20
SSW
30
S
 mm 
29
7
1
8
11
26
1
5
5
1
1
1
1
8
3
7
3
5
1
1
13
max°C
13
15
12
8
10
12
12
8
7
7
6
9
8
6
6
5
5
5
6
5
1
4
6
6
5
4
3
3
5
5
5
7
6
4
6
4
Moonrise
3:49
4:57
6:05
7:11
8:10
9:00
9:40
10:11
10:36
10:56
11:13
11:29
Moonset
1:25
1:46
2:15
2:51
3:38
4:36
5:42
6:53
8:07
9:20
10:33
Sunrise
7:50
7:50
7:52
7:52
7:52
7:54
7:54
7:54
7:54
7:56
7:56
7:56
Sunset
4:19
4:19
4:19
4:19
4:20
4:20
4:21
4:21
4:22
4:22
4:22
4:23
Today's sea temperature in Vashon is
10.8° C
(Statistics for 14 Dec 1981-2005 – mean: 8.9 max: 10.1 min: 7.3°C)
Issued (local time): 9 pm Sunday 14 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest