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 08:21 PM.

Days 1–4 Weather Summary

Mostly dry. Cool air temperatures (max 16°C on Thu night, min 9°C on Wed morning). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 22°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Very mild (max 17°C on Thu afternoon, min 10°C on Thu morning). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 9mm), mostly falling on Sun afternoon. Very mild (max 16°C on Thu night, min 9°C on Sun morning). Wind will be generally light.

Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thu
14
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
3:52AM2.33m
5:58PM1.98m
6:50PM2.15m
7:36PM2.30m
8:21PM2.40m
9:05PM2.46m
9:52PM2.48m
10:41PM2.47m
11:31PM2.46m
00:17AM2.44m
00:57AM2.43m
1:28AM2.40m
9:46AM1.49m
1:52AM2.37m
12:45PM1.43m
2:12AM2.33m
2:45PM1.55m
2:28AM2.30m
4:17PM1.79m
Low Tide
9:38PM1.28m
10:50AM0.42m
10:28PM1.51m
11:15AM0.19m
11:18PM1.71m
11:41AM-0.00m
00:10AM1.87m
12:08PM-0.13m
1:07AM1.98m
12:38PM-0.20m
2:13AM2.05m
1:11PM-0.21m
3:33AM2.06m
1:48PM-0.17m
2:28PM-0.08m
3:11PM0.04m
3:57PM0.20m
4:47PM0.38m
8:57AM1.48m
5:42PM0.60m
8:47AM1.23m
6:42PM0.85m
9:04AM0.88m
7:44PM1.12m
9:28AM0.48m
Wave
height (m) 
direction
period (s) 
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
cloud
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
light rain
rain showers
rain showers
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
cloud
mod rain
light rain
cloud
cloud
cloud
some clouds
clear
clear
clear
clear
some clouds
some clouds
clear
some clouds
some clouds
cloudy
clear
clear
clear
clear
clear
clear
some clouds
clear
some clouds
clear
clear
cloudy
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
light rain
rain shwrs
rain shwrs
light rain
light rain
light rain
light rain
cloudy
cloudy
some clouds
cloudy
mod rain
light rain
cloudy
cloudy
cloudy
 km/h
5
NNW
5
N
5
NNW
0
E
5
N
10
SW
5
W
10
WSW
5
W
5
NNE
10
N
10
NW
10
NW
10
NNW
5
NNW
5
NNE
10
S
25
SSW
25
S
10
SSE
10
SSW
15
SSW
10
SSE
10
SW
5
SSW
15
SSW
15
SSW
20
SW
20
S
20
SSW
20
SSW
10
SSW
5
SW
5
SE
5
SW
5
NW
5
SSE
10
SSE
10
SSE
10
SE
10
SE
5
ENE
20
SE
5
SSE
0
E
5
E
10
NNW
 mm 
1
1
3
1
3
4
1
9
1
max°C
11
11
14
14
12
15
16
12
15
14
12
18
17
17
22
20
14
17
16
12
14
15
12
15
15
12
17
16
10
14
15
10
12
12
9
10
10
10
12
11
10
15
12
10
12
12
12
Moonrise
6:46
7:57
9:08
10:18
11:24
12:22
1:10
1:47
2:16
2:39
2:57
3:14
3:29
3:44
4:02
Moonset
4:50
5:05
5:23
5:45
6:14
6:51
7:38
8:36
9:42
10:52
12:05
1:18
2:32
3:49
5:09
Sunrise
5:56
5:54
5:52
5:50
5:48
5:48
5:46
5:43
5:43
5:41
5:39
5:37
5:37
5:35
5:33
5:33
Sunset
8:21
8:22
8:23
8:25
8:27
8:29
8:30
8:30
8:32
8:34
8:36
8:37
8:37
8:39
8:40
8:43
Today's sea temperature in Friday Harbor, San Juan Channel is
9.6° C
(Statistics for 28 Apr 1981-2005 – mean: 10.7 max: 11.9 min: 9.6°C)
Issued (local time): 10 pm Tuesday 28 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest