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 05:54 AM and sunset is at 08:24 PM.
Days 1–3 Weather SummaryMostly dry. Cool air temperatures (max 11°C on Mon afternoon, min 6°C on Mon night). Wind will be generally light. | Days 4–6 Weather SummaryMostly dry. Cool air temperatures (max 16°C on Sat afternoon, min 8°C on Thu morning). Wind will be generally light. | Days 7–9 Weather SummaryLight rain (total 5mm), mostly falling on Sun afternoon. Very mild (max 15°C on Sun afternoon, min 7°C on Mon night). Winds decreasing (fresh winds from the WSW on Sun night, light winds from the WNW by Tue morning). | Days 10–12 Weather SummaryMostly dry. Very mild (max 17°C on Fri afternoon, min 8°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Monday 29 | Tuesday 30 | Wednesday 1 | Thursday 2 | Friday 3 | Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||||||||||||
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 | 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 | 6:17PM2.26m | 7:15PM2.40m | 8:10PM2.47m | 5:27AM2.24m | 9:06PM2.48m | ||||||||||||||||||
Low Tide | 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 | 11:11PM1.41m | 11:42AM-0.64m | 00:05AM1.63m | 12:23PM-0.75m | 1:02AM1.79m | 1:06PM-0.73m | 2:09AM1.87m | |||||||||||||||
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 |  |  | | |  | | |  | | | | |  | | | | | |  |  | |  | | | | | | | | | | | | | | |
clear | some clouds | cloudy | some clouds | clear | clear | clear | some clouds | some clouds | clear | clear | clear | some clouds | cloudy | some clouds | some clouds | some clouds | clear | cloudy | light rain | rain shwrs | some clouds | rain shwrs | some clouds | clear | some clouds | some clouds | some clouds | some clouds | cloudy | clear | cloudy | some clouds | clear | clear | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 1.0 | — | 1.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max°C | 8 | 11 | 10 | 7 | 9 | 10 | 8 | 10 | 11 | 10 | 14 | 14 | 11 | 15 | 13 | 14 | 16 | 15 | 13 | 15 | 11 | 10 | 12 | 9 | 9 | 11 | 10 | 9 | 12 | 12 | 11 | 14 | 14 | 12 | 17 | 17 |
Moonrise | 2:09 | — | — | 2:51 | — | — | 3:22 | — | — | 3:46 | — | — | 4:05 | — | — | 4:22 | — | — | 4:38 | — | — | 4:55 | — | — | 5:15 | — | — | 5:39 | — | — | 6:12 | — | — | 6:55 | — | — |
Moonset | 9:31 | — | — | 10:48 | — | — | 12:11 | — | — | 1:35 | — | — | — | 3:00 | — | — | 4:24 | — | — | 5:48 | — | — | 7:15 | — | — | 8:42 | — | — | — | 10:09 | — | — | 11:29 | — | — | — |
 | 5:54 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — | — | 5:48 | — | — | 5:46 | — | — | 5:45 | — | — | 5:43 | — | — | 5:41 | — | — | 5:39 | — | — | 5:39 | — | — | 5:37 | — | — |
 | — | 8:24 | — | — | 8:25 | — | — | 8:28 | — | — | 8:29 | — | — | 8:30 | — | — | 8:31 | — | — | 8:34 | — | — | 8:35 | — | — | 8:37 | — | — | 8:37 | — | — | 8:38 | — | — | 8:40 | — |
Today's sea temperature in Roche Harbor, San Juan Island is 9.2 °C (Statistics for 29 Apr 1981-2005 – mean: 10.8 max: 12.2 min: 9.6°C) | ||||||||||||||||||||||||||||||||||||
Nearest