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 — and sunset is at 08:19 PM.
Days 1–4 Weather SummaryModerate rain (total 17mm), heaviest on Thu night. Cool air temperatures (max 11°C on Fri afternoon, min 8°C on Sat afternoon). Winds increasing (calm on Fri morning, fresh winds from the WSW by Sun afternoon). | Days 5–7 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Cool air temperatures (max 11°C on Wed afternoon, min 6°C on Sun night). Wind will be generally light. | Days 8–10 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 13°C on Thu morning, min 8°C on Thu night). Wind will be generally light. | Days 11–13 Weather SummaryMostly dry. Very mild (max 15°C on Tue afternoon, min 8°C on Mon morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tue 7 | |||||||||||||||||||||||||
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 | 8:14PM2.16m | 5:30AM2.08m | 9:06PM2.22m | 5:42AM2.08m | 10:04PM2.25m | 5:44AM2.07m | 11:07PM2.27m | 5:19AM2.05m | 00:11AM2.30m | 1:04AM2.32m | 1:44AM2.33m | 10:40AM1.65m | 2:16AM2.34m | 12:55PM1.61m | 2:44AM2.34m | 2:41PM1.70m | 3:11AM2.36m | 4:04PM1.88m | 3:36AM2.37m | 5:14PM2.08m | ||||||||||||||||
Low Tide | 00:56AM1.68m | 1:08PM-0.46m | 1:38AM1.84m | 1:47PM-0.49m | 2:29AM1.97m | 2:32PM-0.46m | 4:00AM2.05m | 3:24PM-0.38m | 4:23PM-0.26m | 5:28PM-0.11m | 8:20AM1.59m | 6:34PM0.07m | 8:39AM1.26m | 7:36PM0.29m | 9:10AM0.85m | 8:33PM0.55m | 9:45AM0.40m | 9:28PM0.84m | 10:23AM-0.03m | 10:19PM1.14m | 11:02AM-0.39m | |||||||||||||||
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 |  |  |  | | |  |  | | | | |  |  | | | | |  | | | | | | | | | | | | |  | | | | | |
mod rain | light rain | some clouds | some clouds | light rain | light rain | rain shwrs | cloudy | cloudy | some clouds | some clouds | light rain | light rain | rain shwrs | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | some clouds | some clouds | some clouds | cloudy | cloudy | rain shwrs | rain shwrs | some clouds | cloudy | some clouds | some clouds | clear | some clouds | some clouds | some clouds | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
8 | 3 | — | — | 2.0 | 3 | 1.0 | — | — | — | — | 1.0 | 1.0 | 1.0 | — | — | — | — | — | — | — | — | — | — | — | 1.0 | 1.0 | — | — | — | — | — | — | — | — | — | |
max°C | 10 | 10 | 11 | 11 | 9 | 9 | 9 | 9 | 10 | 8 | 8 | 9 | 8 | 6 | 8 | 8 | 8 | 11 | 11 | 13 | 11 | 11 | 9 | 12 | 12 | 10 | 12 | 11 | 10 | 12 | 11 | 10 | 12 | 13 | 12 | 15 |
Moonrise | 10:55 | — | — | — | 12:08 | — | — | 1:14 | — | — | 2:09 | — | — | 2:51 | — | — | 3:22 | — | — | 3:46 | — | — | 4:05 | — | — | 4:22 | — | — | 4:38 | — | — | 4:55 | — | — | 5:15 | — |
Moonset | 6:29 | 6:56 | — | — | 7:34 | — | — | 8:25 | — | — | 9:31 | — | — | 10:48 | — | — | 12:11 | — | — | 1:35 | — | — | — | 3:00 | — | — | 4:24 | — | — | 5:48 | — | — | 7:15 | — | — | 8:42 |
 | — | 6:00 | — | — | 5:58 | — | — | 5:56 | — | — | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:46 | — | — | 5:45 | — | — | 5:43 | — | — | 5:41 | — |
 | 8:19 | — | 8:21 | — | — | 8:22 | — | — | 8:23 | — | — | 8:24 | — | — | 8:25 | — | — | 8:28 | — | — | 8:29 | — | — | 8:30 | — | — | 8:31 | — | — | 8:34 | — | — | 8:35 | — | — | 8:37 |
Today's sea temperature in Roche Harbor, San Juan Island is 9.2 °C (Statistics for 25 Apr 1981-2005 – mean: 10.6 max: 11.9 min: 9.2°C) | ||||||||||||||||||||||||||||||||||||
Nearest