Roche Harbor, San Juan Island 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 07:56 AM and sunset is at 04:15 PM.
Days 1–3 Weather SummaryLight rain (total 5mm), mostly falling on Thu night. Low air temperatures (max 9°C on Fri night, min 6°C on Thu morning). Winds increasing (calm on Thu afternoon, strong winds from the SE by Fri night). | Days 4–6 Weather SummaryModerate rain (total 10mm), heaviest on Tue night. Low air temperatures (max 6°C on Sun afternoon, min 3°C on Mon morning). Wind will be generally light. | Days 7–9 Weather SummaryModerate rain (total 17mm), heaviest on Wed morning. Very mild (max 10°C on Thu morning, min 5°C on Fri night). Wind will be generally light. | Days 10–12 Weather SummaryLight rain (total 9mm), mostly falling on Sun night. Very mild (max 10°C on Mon afternoon, min 6°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thursday 12 | Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | |||||||||||||||||||||||||
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 | 12:54PM2.60m | 4:22AM2.36m | 1:25PM2.60m | 5:15AM2.58m | 1:59PM2.57m | 6:02AM2.71m | 2:38PM2.50m | 6:47AM2.76m | 3:22PM2.40m | 7:29AM2.74m | 4:08PM2.26m | 8:11AM2.69m | 4:59PM2.08m | 8:50AM2.62m | 5:55PM1.88m | 9:27AM2.56m | 7:01PM1.67m | 10:01AM2.50m | 8:26PM1.47m | 10:29AM2.44m | 10:20PM1.36m | 10:54AM2.40m | 00:51AM1.44m | |||||||||||||
Low Tide | 7:23AM1.69m | 8:36PM-0.37m | 8:30AM1.95m | 9:17PM-0.63m | 9:33AM2.10m | 9:58PM-0.78m | 10:35AM2.16m | 10:41PM-0.80m | 11:37AM2.15m | 11:25PM-0.72m | 12:41PM2.07m | 00:08AM-0.56m | 1:51PM1.95m | 00:52AM-0.34m | 3:08PM1.78m | 1:36AM-0.08m | 4:19PM1.57m | 2:19AM0.23m | 5:17PM1.32m | 3:03AM0.57m | 6:01PM1.04m | 3:50AM0.93m | 6:38PM0.76m | 4:45AM1.29m | ||||||||||||
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cloudy | cloudy | light rain | cloudy | cloudy | rain shwrs | cloudy | light rain | some clouds | some clouds | cloudy | light rain | light rain | light rain | light rain | cloudy | cloudy | light rain | mod rain | light rain | rain shwrs | clear | clear | some clouds | clear | some clouds | some clouds | cloudy | cloudy | light rain | cloudy | cloudy | light rain | rain shwrs | cloudy | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | 2.0 | — | — | 2.0 | — | 1.0 | — | — | — | 1.0 | 2.0 | 2.0 | 1.0 | — | — | 4 | 6 | 4 | 7 | — | — | — | — | — | — | — | — | 2.0 | — | — | 4 | 3 | — | — | |
max°C | 6 | 6 | 7 | 8 | 8 | 9 | 9 | 8 | 7 | 5 | 6 | 6 | 4 | 5 | 6 | 6 | 6 | 5 | 8 | 8 | 9 | 10 | 10 | 8 | 7 | 8 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 10 |
Moonrise | 2:03 | — | — | 2:34 | — | — | — | 3:17 | — | — | 4:15 | — | — | 5:25 | — | — | 6:43 | — | — | 8:00 | — | — | — | 9:15 | — | — | 10:26 | — | — | 11:34 | — | — | — | 12:41 | — | — |
Moonset | 4:51 | — | — | 6:19 | — | — | 7:43 | — | — | 8:56 | — | — | 9:53 | — | — | 10:33 | — | — | 11:02 | — | — | 11:23 | — | — | 11:40 | — | — | 11:53 | — | — | 12:06 | — | — | 12:18 | — | — |
 | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 8:00 | — | — | 8:00 | — | — | 8:00 | — | — | 8:02 | — | — | 8:02 | — | — | 8:03 | — | — | 8:03 | — | — |
 | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:16 | — | — | 4:16 | — | — | 4:17 | — | — | 4:17 | — | — | 4:17 | — | — | 4:19 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — |
Today's sea temperature in Roche Harbor, San Juan Island is 9.0 °C (Statistics for 12 Dec 1981-2005 – mean: 8.5 max: 9.4 min: 6.6°C) | ||||||||||||||||||||||||||||||||||||
Nearest