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 04:17 PM.
Days 1–4 Weather SummaryModerate rain (total 16mm), heaviest on Mon afternoon. Low air temperatures (max 8°C on Sun morning, min 6°C on Sat night). Winds increasing (light winds from the SSE on Sat night, strong winds from the SSE by Mon afternoon). | Days 5–7 Weather SummaryA light covering of new snow, mostly falling on Thu afternoon. Icy conditions (max 6°C on Tue afternoon, min 0°C on Thu morning). Winds increasing (calm on Tue afternoon, fresh winds from the N by Wed night). | Days 8–10 Weather SummaryMostly dry. Mild temperatures (max 7°C on Sat afternoon, min 3°C on Fri afternoon). Wind will be generally light. | Days 11–13 Weather SummaryModerate rain (total 18mm), heaviest on Mon night. Mild temperatures (max 9°C on Mon afternoon, min 3°C on Wed night). Winds decreasing (strong winds from the SE on Mon afternoon, calm by Wed afternoon). | |||||||||||||||||||||||||||||||||
Sat 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tuesday 30 | Wednesday 31 | Thu 1 | ||||||||||||||||||||||||
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 | AM | |
Wave Height Map |  |  |  |  |  |  |  |  |  |  |  |  |  | |||||||||||||||||||||||
High Tide | 2:17PM2.19m | 7:16AM2.59m | 2:53PM2.14m | 7:48AM2.59m | 3:30PM2.07m | 8:20AM2.58m | 4:13PM1.96m | 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 | ||||||||||||
Low Tide | 10:58PM-0.51m | 12:45PM2.10m | 11:35PM-0.50m | 1:36PM2.05m | 00:13AM-0.43m | 2:36PM1.95m | 00:51AM-0.30m | 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 | |||||||||||||
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 |  |  | |  |  | | | |  | | |  | | |  |  | | | | | | | | | | | | | |  |  | | | | | |
light rain | rain shwrs | rain shwrs | rain shwrs | some clouds | cloudy | light rain | rain shwrs | rain shwrs | some clouds | some clouds | some clouds | clear | some clouds | cloudy | light snow | light snow | cloudy | some clouds | some clouds | some clouds | clear | some clouds | some clouds | clear | some clouds | cloudy | light rain | rain shwrs | light rain | mod rain | light rain | cloudy | some clouds | rain shwrs | some clouds | |
km/h | ||||||||||||||||||||||||||||||||||||
1 | 4 | 1 | 2 | — | — | 4 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 7 | 1 | 6 | 1 | — | — | 1 | — | |
max°C | 7 | 7 | 8 | 7 | 7 | 7 | 8 | 7 | 6 | 6 | 5 | 5 | 5 | 4 | 1 | 1 | 2 | 2 | 4 | 5 | 6 | 7 | 7 | 6 | 7 | 6 | 7 | 9 | 9 | 6 | 5 | 4 | 5 | 5 | 4 | 4 |
Moonrise | — | — | 9:49 | — | — | 10:19 | — | — | 10:42 | — | — | 11:01 | — | — | 11:17 | — | — | 11:32 | — | — | 11:46 | — | — | 12:03 | — | — | 12:23 | — | — | 12:49 | — | — | 1:25 | — | — | 2:16 |
Moonset | 4:32 | — | — | 5:39 | — | — | 6:52 | — | — | 8:06 | — | — | — | 9:21 | — | — | 10:35 | — | — | 11:51 | — | — | — | 1:09 | — | — | 2:30 | — | — | 3:57 | — | — | 5:25 | — | — | 6:49 |
 | — | — | 8:02 | — | — | 8:02 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 | — | — | 8:03 |
 | 4:17 | — | — | 4:19 | — | — | 4:19 | — | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — | — | 4:24 | — | — | 4:25 | — | — |
Today's sea temperature in Roche Harbor, San Juan Island is 9.5° C (Statistics for 20 Dec 1981-2005 – mean: 8.2 max: 9.3 min: 6.6°C) | ||||||||||||||||||||||||||||||||||||
Nearest