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 22mm), heaviest during Mon afternoon. Cool air temperatures (max 11°C on Sun afternoon, min 8°C on Mon morning). Winds decreasing (strong winds from the WSW on Mon night, light winds from the SSE by Tue morning). | Days 5–7 Weather SummaryHeavy rain (total 25mm), heaviest during Thu night. Cool air temperatures (max 12°C on Fri afternoon, min 6°C on Wed night). Winds decreasing (strong winds from the WSW on Tue night, calm by Thu night). | Days 8–10 Weather SummarySome drizzle, heaviest during Mon morning. Very mild (max 13°C on Fri night, min 8°C on Sun night). Wind will be generally light. | Days 11–13 Weather SummaryHeavy rain (total 23mm), heaviest during Tue afternoon. Very mild (max 10°C on Tue morning, min 5°C on Thu night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thu 18 | |||||||||||||||||||||||||
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 | 7:45AM2.76m | 4:36PM2.35m | 8:31AM2.72m | 5:36PM2.15m | 9:17AM2.67m | 6:46PM1.91m | 10:00AM2.61m | 8:10PM1.65m | 10:39AM2.56m | 9:56PM1.47m | 11:13AM2.50m | 00:06AM1.45m | 11:42AM2.44m | 2:03AM1.64m | 12:05PM2.38m | 3:23AM1.91m | 12:23PM2.32m | 4:19AM2.16m | 12:38PM2.29m | 5:02AM2.35m | 12:54PM2.26m | 5:40AM2.48m | 1:15PM2.24m | |||||||||||||
Low Tide | 11:43PM-0.91m | 12:45PM2.08m | 00:32AM-0.71m | 2:05PM1.95m | 1:22AM-0.44m | 3:36PM1.75m | 2:13AM-0.09m | 4:56PM1.47m | 3:05AM0.29m | 5:58PM1.16m | 3:58AM0.68m | 6:44PM0.84m | 4:55AM1.07m | 7:21PM0.55m | 7:52PM0.28m | 7:05AM1.71m | 8:20PM0.05m | 8:13AM1.93m | 8:48PM-0.14m | 9:17AM2.06m | 9:17PM-0.29m | 10:17AM2.13m | ||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
 |  | | |  |  |  |  | | | | |  | | | | | |  | | | |  | | | | | | |  |  | | | | | | |
cloudy | some clouds | some clouds | cloudy | light rain | heavy rain | light rain | cloudy | light rain | light rain | cloudy | cloudy | mod rain | light rain | light rain | mod rain | cloudy | cloudy | some clouds | some clouds | cloudy | some clouds | clear | clear | some clouds | light rain | cloudy | cloudy | cloudy | rain shwrs | rain shwrs | rain shwrs | some clouds | some clouds | light rain | rain shwrs | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | 5 | 14 | 2 | — | 1 | 3 | — | — | 6 | 2 | 4 | 10 | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 8 | 1 | 7 | — | — | 3 | 1 | |
max°C | 10 | 10 | 11 | 10 | 9 | 11 | 10 | 9 | 9 | 11 | 9 | 7 | 7 | 6 | 6 | 7 | 10 | 12 | 13 | 11 | 11 | 11 | 9 | 10 | 9 | 8 | 9 | 9 | 10 | 10 | 9 | 8 | 8 | 7 | 6 | 7 |
Moonrise | — | — | 7:20 | — | — | 8:44 | — | — | — | 10:03 | — | — | 11:18 | — | — | — | 12:29 | — | — | 1:38 | — | — | 2:47 | — | — | 3:55 | — | — | 5:05 | — | — | 6:14 | — | — | 7:20 | — |
Moonset | — | 11:02 | — | — | 11:32 | — | — | 11:54 | — | — | 12:11 | — | — | 12:26 | — | — | 12:39 | — | — | 12:52 | — | — | 1:07 | — | — | 1:24 | — | — | 1:44 | — | — | 2:12 | — | — | 2:47 | — |
 | — | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 7:58 | — | — | 7:58 | — | — | 8:00 | — |
 | — | — | 4:16 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:16 | — | — | 4:16 | — | — | 4:17 |
Today's sea temperature in Roche Harbor, San Juan Island is 9.1° C (Statistics for 06 Dec 1981-2005 – mean: 8.7 max: 9.6 min: 6.9°C) | ||||||||||||||||||||||||||||||||||||
Nearest