Friday Harbor, San Juan Channel Sea Conditions and Tide Table

Friday Harbor, San Juan Channel 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 21mm), heaviest during Sun night. Cool air temperatures (max 11°C on Mon afternoon, min 3°C on Sun afternoon). Winds decreasing (fresh winds from the SE on Sun night, calm by Mon night).

Days 5–7 Weather Summary

Heavy rain (total 40mm), heaviest during Wed morning. Cool air temperatures (max 12°C on Wed night, min 10°C on Tue night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Mild temperatures (max 9°C on Sun night, min 4°C on Mon morning). Winds decreasing (fresh winds from the W on Fri night, calm by Mon afternoon).

Days 11–13 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Mon night, min 2°C on Thu morning). Winds increasing (calm on Mon night, strong winds from the W by Tue afternoon).

Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Mon
30
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
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
High Tide
5:23AM2.33m
1:38PM1.86m
5:34AM2.29m
3:07PM1.88m
5:44AM2.26m
4:18PM1.94m
5:55AM2.25m
5:22PM2.00m
6:08AM2.26m
6:25PM2.07m
6:22AM2.29m
7:30PM2.13m
6:36AM2.34m
8:38PM2.18m
6:52AM2.40m
9:55PM2.21m
7:09AM2.44m
11:28PM2.25m
7:30AM2.45m
1:22AM2.32m
7:50AM2.40m
2:48AM2.41m
3:33AM2.46m
4:04AM2.47m
11:50AM1.87m
4:30AM2.46m
2:20PM1.79m
Low Tide
9:06PM0.26m
10:43AM1.77m
9:46PM0.26m
10:53AM1.58m
10:21PM0.32m
11:13AM1.33m
10:54PM0.45m
11:38AM1.02m
11:28PM0.66m
12:10PM0.69m
00:03AM0.93m
12:46PM0.36m
00:40AM1.25m
1:27PM0.08m
1:18AM1.57m
2:12PM-0.12m
1:59AM1.87m
3:02PM-0.23m
2:44AM2.11m
3:57PM-0.23m
3:58AM2.28m
5:00PM-0.15m
6:11PM-0.03m
7:23PM0.10m
10:06AM1.85m
8:27PM0.23m
10:22AM1.58m
Wave
height (m) 
direction
period (s) 
cloud
cloud
light rain
heavy rain
light rain
rain showers
light rain
light rain
light rain
mod rain
mod rain
light rain
light rain
light rain
light rain
mod rain
light rain
rain showers
part cloud
clear
clear
part cloud
part cloud
clear
clear
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
cloud
cloudy
cloudy
light rain
heavy rain
light rain
rain shwrs
light rain
light rain
light rain
mod rain
mod rain
light rain
light rain
light rain
light rain
mod rain
light rain
rain shwrs
some clouds
clear
clear
some clouds
some clouds
clear
clear
cloudy
cloudy
cloudy
cloudy
some clouds
clear
some clouds
some clouds
some clouds
some clouds
clear
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
light rain
light rain
rain shwrs
cloudy
 km/h
15
SSW
15
E
15
ESE
20
SE
20
SSE
20
SE
5
SE
25
SSE
20
SSE
10
S
25
SE
20
SE
15
SE
20
SE
20
SE
10
S
15
SSE
25
WSW
25
W
20
W
35
WSW
20
SW
15
SSE
10
SSE
10
N
5
ENE
0
SSW
5
SSW
20
S
50
W
25
W
10
WNW
10
SSE
10
NNE
10
NNE
10
NNW
10
NNE
5
ENE
10
NE
0
NNW
5
S
5
NW
0
ENE
20
SW
10
SSE
5
NW
15
NNW
 mm 
2
11
4
1
1
1
1
9
6
4
4
4
4
7
1
1
3
1
1
max°C
6
5
5
6
7
11
11
10
11
10
10
11
12
11
12
11
10
11
7
7
8
6
5
8
9
5
8
8
6
7
5
5
6
6
3
8
8
7
12
11
10
11
10
9
9
8
7
Moonrise
6:14
6:34
6:50
7:06
7:21
7:38
7:58
8:24
8:59
9:48
10:51
12:06
1:27
2:49
4:07
Moonset
3:30
4:47
6:04
7:23
8:44
10:08
11:35
1:01
2:21
3:29
4:20
4:56
5:23
5:43
6:00
Sunrise
7:24
7:22
7:20
7:18
7:16
7:15
7:13
7:11
7:09
7:07
7:05
7:03
7:01
6:58
6:56
6:54
Sunset
7:15
7:17
7:19
7:21
7:22
7:23
7:24
7:27
7:28
7:30
7:30
7:32
7:34
7:36
7:37
Today's sea temperature in Friday Harbor, San Juan Channel is
8.3° C
(Statistics for 14 Mar 1981-2005 – mean: 8.5 max: 10.3 min: 7.2°C)
Issued (local time): 10 pm Saturday 14 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest