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 —.
Days 1–4 Weather SummaryHeavy rain (total 26mm), heaviest during Wed night. Low air temperatures (max 9°C on Thu afternoon, min 6°C on Wed night). Winds decreasing (strong winds from the ESE on Wed night, light winds from the SE by Fri morning). | Days 5–7 Weather SummaryMostly dry. Low air temperatures (max 8°C on Sat night, min 5°C on Tue morning). Wind will be generally light. | Days 8–10 Weather SummaryHeavy rain (total 28mm), heaviest during Wed night. Very mild (max 11°C on Thu afternoon, min 4°C on Tue night). Winds decreasing (strong winds from the SE on Tue night, light winds from the NW by Fri afternoon). | Days 11–13 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Mild temperatures (max 7°C on Fri night, min 2°C on Sun night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thursday 26 | Friday 27 | Saturday 28 | Sunday 29 | Monday 30 | Tuesday 31 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Mon 6 | |||||||||||||||||||||||||
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 | 3:53AM1.98m | 11:55AM2.33m | 4:38AM2.23m | 12:17PM2.32m | 5:14AM2.40m | 12:41PM2.32m | 5:47AM2.53m | 1:10PM2.31m | 6:18AM2.60m | 1:46PM2.31m | 6:49AM2.64m | 2:29PM2.29m | 7:17AM2.64m | 3:29PM2.25m | 7:48AM2.65m | 4:28PM2.15m | 8:18AM2.64m | 5:36PM1.99m | 8:48AM2.64m | 6:55PM1.80m | 9:17AM2.64m | 8:29PM1.62m | 9:45AM2.64m | |||||||||||||
Low Tide | 7:41PM0.21m | 7:07AM1.88m | 8:12PM-0.02m | 8:19AM2.06m | 8:44PM-0.22m | 9:24AM2.17m | 9:17PM-0.39m | 10:19AM2.22m | 9:53PM-0.52m | 11:03AM2.23m | 10:30PM-0.61m | 11:41AM2.20m | 11:10PM-0.65m | 12:15PM2.11m | 11:49PM-0.61m | 1:01PM1.98m | 00:30AM-0.47m | 1:56PM1.79m | 1:11AM-0.22m | 2:56PM1.52m | 1:53AM0.13m | 3:56PM1.19m | 2:37AM0.57m | 4:52PM0.81m | ||||||||||||
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mod rain | mod rain | clear | cloudy | cloudy | light rain | rain shwrs | light rain | rain shwrs | some clouds | cloudy | cloudy | some clouds | cloudy | some clouds | some clouds | cloudy | cloudy | light rain | light rain | light rain | mod rain | light rain | cloudy | rain shwrs | light rain | light rain | some clouds | some clouds | some clouds | light rain | light rain | some clouds | some clouds | some clouds | clear | |
km/h | ||||||||||||||||||||||||||||||||||||
10 | 7 | — | — | — | 1.0 | 5 | 2.0 | 1.0 | — | — | — | — | — | — | — | — | — | 4 | 4 | 2.0 | 10 | 3 | — | 2.0 | 2.0 | 1.0 | — | — | — | 1.0 | 1.0 | — | — | — | — | |
max°C | 8 | 7 | 9 | 8 | 7 | 7 | 8 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 7 | 6 | 6 | 7 | 8 | 10 | 11 | 11 | 11 | 9 | 7 | 7 | 7 | 6 | 4 | 5 | 5 | 2 | 3 |
Moonrise | 2:55 | 4:06 | — | — | 5:18 | — | — | 6:30 | — | — | 7:37 | — | — | 8:34 | — | — | 9:20 | — | — | 9:53 | — | — | 10:19 | — | — | 10:39 | — | — | 10:55 | — | — | 11:11 | — | — | 11:26 | — |
Moonset | 12:47 | 1:05 | — | — | 1:30 | — | — | 2:04 | — | — | 2:50 | — | — | — | 3:51 | — | — | 5:04 | — | — | 6:24 | — | — | 7:47 | — | — | — | 9:08 | — | — | 10:29 | — | — | 11:49 | — | — |
 | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — |
 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:24 | — | — | 4:25 | — | — | 4:25 | — | — | 4:27 | — | — | 4:28 | — | — | 4:29 | — | — | 4:30 | — | — | 4:31 | — | — | 4:32 |
Today's sea temperature in Roche Harbor, San Juan Island is 9.0 °C (Statistics for 25 Dec 1981-2005 – mean: 8.1 max: 9.1 min: 6.4°C) | ||||||||||||||||||||||||||||||||||||
Nearest