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 08:03 AM and sunset is at 04:21 PM.
Days 1–3 Weather SummaryHeavy rain (total 21mm), heaviest during Fri morning. Low air temperatures (max 6°C on Wed night, min 3°C on Wed afternoon). Mainly fresh winds. | Days 4–6 Weather SummaryMostly dry. Air temperatures will be slightly above freezing (max 3°C on Sat morning, min 2°C on Sat morning). Wind will be generally light. | Days 7–9 Weather SummarySome drizzle, heaviest during Thu night. Mild temperatures (max 8°C on Thu afternoon, min 3°C on Tue morning). Wind will be generally light. | Days 10–12 Weather SummaryModerate rain (total 11mm), heaviest on Fri afternoon. Mild temperatures (max 9°C on Fri morning, min 6°C on Fri afternoon). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thursday 1 | Friday 2 | Saturday 3 | Sunday 4 | |||||||||||||||||||||||||
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 | 8:51AM2.58m | 5:16PM1.81m | 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 | |||||||||||||
Low Tide | 3:36PM1.80m | 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 | |||||||||||||
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 |  |  |  |  |  | |  | |  | |  | | | | | | | | | | | | | | | | | | | | | | | | | |
light rain | rain shwrs | some clouds | cloudy | mod rain | light rain | rain shwrs | clear | some clouds | some clouds | cloudy | cloudy | cloudy | cloudy | cloudy | some clouds | clear | some clouds | cloudy | cloudy | cloudy | cloudy | some clouds | some clouds | cloudy | cloudy | light rain | light rain | rain shwrs | light rain | cloudy | some clouds | some clouds | cloudy | cloudy | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
3 | 2 | — | — | 6 | 5 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 6 | 2 | — | — | — | — | — | — | |
max°C | 5 | 4 | 6 | 5 | 4 | 4 | 5 | 5 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 3 | 4 | 5 | 5 | 7 | 7 | 7 | 7 | 8 | 8 | 9 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 7 |
Moonrise | 11:01 | — | — | 11:17 | — | — | 11:32 | — | — | 11:46 | — | — | 12:03 | — | — | 12:23 | — | — | 12:49 | — | — | 1:25 | — | — | 2:16 | — | — | — | 3:25 | — | — | 4:47 | — | — | 6:13 | — |
Moonset | — | — | 9:21 | — | — | 10:35 | — | — | 11:51 | — | — | — | 1:09 | — | — | 2:30 | — | — | 3:57 | — | — | 5:25 | — | — | 6:49 | — | — | 7:59 | — | — | 8:51 | — | — | 9:28 | — | — |
 | 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 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:24 | — | — | 4:25 | — | — | 4:27 | — | — | 4:28 | — | — | 4:29 | — | — | 4:30 | — |
Today's sea temperature in Roche Harbor, San Juan Island is 9.1° C (Statistics for 24 Dec 1981-2005 – mean: 8.1 max: 9.1 min: 6.6°C) | ||||||||||||||||||||||||||||||||||||
Forecast update inUpdates in hr min sUpdate imminent
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