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 SummaryLight rain (total 7mm), mostly falling on Thu afternoon. Low air temperatures (max 6°C on Wed night, min 2°C on Sat morning). Wind will be generally light. | Days 5–7 Weather SummaryMostly dry. Low air temperatures (max 5°C on Tue afternoon, min 3°C on Sat night). Wind will be generally light. | Days 8–10 Weather SummaryLight rain (total 8mm), 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 SummaryModerate rain (total 15mm), heaviest on Fri night. Very mild (max 10°C on Fri night, min 5°C on Sun night). Winds decreasing (near 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 | 9:20AM2.57m | 6:46PM1.63m | 9:48AM2.56m | 8:32PM1.47m | 10:14AM2.56m | 10:38PM1.42m | 10:39AM2.57m | 1:00AM1.59m | 11:04AM2.60m | 2:47AM1.93m | 11:32AM2.63m | 3:52AM2.27m | 12:05PM2.65m | 4:41AM2.55m | 12:42PM2.64m | 5:22AM2.70m | 1:39PM2.61m | 6:01AM2.77m | 2:42PM2.53m | 6:39AM2.79m | 3:46PM2.42m | 7:15AM2.76m | 4:49PM2.25m | |||||||||||||
Low Tide | 1:30AM-0.08m | 4:21PM1.57m | 2:09AM0.21m | 4:57PM1.28m | 2:50AM0.59m | 5:34PM0.92m | 3:36AM1.01m | 6:13PM0.52m | 4:34AM1.44m | 6:54PM0.11m | 5:49AM1.83m | 7:37PM-0.26m | 7:11AM2.10m | 8:21PM-0.56m | 8:29AM2.27m | 9:08PM-0.75m | 9:36AM2.28m | 9:56PM-0.83m | 10:38AM2.20m | 10:44PM-0.80m | 11:37AM2.05m | 11:30PM-0.68m | 12:37PM1.87m | |||||||||||||
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 |  |  | |  | | |  | | | | | | | | | | |  | | |  | | | | | |  | | | | | | | | | |
some clouds | cloudy | light rain | some clouds | rain shwrs | rain shwrs | some clouds | some clouds | cloudy | some clouds | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | cloudy | light rain | light rain | cloudy | cloudy | cloudy | cloudy | cloudy | mod rain | light rain | light rain | light rain | some clouds | some clouds | some clouds | some clouds | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | 4 | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 5 | — | — | — | — | — | 9 | 1 | 4 | 1 | — | — | — | — | — | |
max°C | 6 | 5 | 4 | 6 | 6 | 6 | 5 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 7 | 7 | 7 | 7 | 8 | 9 | 8 | 8 | 8 | 10 | 8 | 8 | 8 | 7 | 7 | 6 | 5 | 5 |
Moonrise | — | 11:17 | — | — | 11:32 | — | — | 11:46 | — | — | 12:03 | — | — | 12:23 | — | — | 12:49 | — | — | 1:25 | — | — | 2:16 | — | — | — | 3:25 | — | — | 4:47 | — | — | 6:13 | — | — | 7:38 |
Moonset | 9:21 | — | — | 10:35 | — | — | 11:51 | — | — | — | 1:09 | — | — | 2:30 | — | — | 3:57 | — | — | 5:25 | — | — | 6:49 | — | — | 7:59 | — | — | 8:51 | — | — | 9:28 | — | — | 9:54 | — |
 | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — |
 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:24 | — | — | 4:25 | — | — | 4:27 | — | — | 4:28 | — | — | 4:29 | — | — | 4:30 | — | — | 4:31 |
Today's sea temperature in Roche Harbor, San Juan Island is 9.1° C (Statistics for 24 Dec 1981-2005 – mean: 8.1 max: 9.0 min: 6.6°C) | ||||||||||||||||||||||||||||||||||||
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