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

Light rain (total 7mm), mostly falling on Thu afternoon. Low air temperatures (max 7°C on Wed night, min 3°C on Thu afternoon). Mainly fresh winds.

Days 5–7 Weather Summary

Mostly dry. Low air temperatures (max 6°C on Tue afternoon, min 3°C on Sat night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 4mm), mostly falling on Wed afternoon. Mild temperatures (max 9°C on Thu afternoon, min 6°C on Tue night). Wind will be generally light.

Days 11–13 Weather Summary

Moderate rain (total 12mm), heaviest on Fri night. Very mild (max 10°C on Fri night, min 5°C on Mon afternoon). Winds decreasing (gales from the SE on Sat morning, calm by Sun night).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
5
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
9:40AM2.63m
6:32PM1.64m
10:04AM2.63m
8:27PM1.45m
10:25AM2.62m
10:53PM1.40m
10:44AM2.61m
1:46AM1.60m
11:01AM2.62m
11:20AM2.64m
5:06AM2.34m
11:44AM2.67m
5:37AM2.59m
12:10PM2.64m
6:12AM2.72m
12:56PM2.60m
6:46AM2.78m
1:50PM2.52m
7:20AM2.79m
2:52PM2.38m
7:53AM2.77m
3:58PM2.20m
Low Tide
1:19AM0.01m
4:26PM1.59m
1:54AM0.31m
5:03PM1.29m
2:30AM0.69m
5:42PM0.91m
3:05AM1.13m
6:22PM0.49m
3:35AM1.58m
7:03PM0.06m
7:46PM-0.34m
8:27PM-0.63m
8:40AM2.47m
9:13PM-0.83m
9:58AM2.49m
9:59PM-0.91m
11:05AM2.42m
10:45PM-0.86m
12:09PM2.29m
11:30PM-0.69m
1:13PM2.10m
Wave
height (m) 
direction
period (s) 
part cloud
cloud
light rain
part cloud
rain showers
rain showers
part cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
rain showers
cloud
light rain
light rain
light rain
part cloud
part cloud
cloud
cloud
some clouds
cloudy
light rain
some clouds
rain shwrs
rain shwrs
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
light rain
light rain
cloudy
cloudy
cloudy
cloudy
cloudy
rain shwrs
cloudy
light rain
light rain
light rain
some clouds
some clouds
cloudy
cloudy
 km/h
15
NNE
25
N
10
E
10
SE
20
WSW
35
W
25
NNW
10
N
10
N
10
NNE
10
SE
10
E
5
NE
5
NNE
10
N
10
NE
5
NE
5
ENE
5
E
15
ESE
10
E
10
NE
15
SE
5
ESE
5
ESE
5
ENE
10
NNW
15
ENE
60
SE
5
SSW
25
WSW
5
SW
10
S
0
W
10
NE
10
NNE
 mm 
4
2
1
2
2
6
3
2
1
max°C
7
6
5
7
7
6
5
3
3
4
4
3
3
3
4
4
4
6
6
7
7
7
8
9
9
8
8
10
8
8
8
7
7
6
6
5
Moonrise
11:16
11:31
11:46
12:02
12:22
12:48
1:25
2:16
3:25
4:47
6:13
7:37
Moonset
9:20
10:35
11:50
1:08
2:30
3:56
5:24
6:47
7:58
8:50
9:27
9:53
Sunrise
8:03
8:03
8:03
8:03
8:03
8:03
8:03
8:03
8:03
8:03
8:03
8:03
Sunset
4:21
4:22
4:22
4:22
4:23
4:24
4:25
4:27
4:28
4:29
4:30
4:30
Today's sea temperature in Friday Harbor, San Juan Channel is
9.1° C
(Statistics for 24 Dec 1981-2005 – mean: 8.0 max: 9.0 min: 6.6°C)
Issued (local time): 9 pm Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest