Roche Harbor, San Juan Island Sea Conditions and Tide Table

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 09:14 PM.

	Days 1–4 Weather Summary Mostly dry. Cool air temperatures (max 19°C on Mon afternoon, min 13°C on Sat night). Wind will be generally light.										Days 5–7 Weather Summary Mostly dry. Warm air temperatures (max 22°C on Tue night, min 12°C on Thu morning). Wind will be generally light.									Days 8–10 Weather Summary Mostly dry. Warm (max 22°C on Sat afternoon, min 14°C on Sat night). Wind will be generally light.									Days 11–13 Weather Summary Mostly dry. Warm (max 21°C on Sun night, min 13°C on Sun night). Wind will be generally light.									Days 14–17 Weather Summary Mostly dry. Warm (max 20°C on Sun afternoon, min 12°C on Thu night). Wind will be generally light.
		Saturday 11			Sunday 12			Monday 13			Tuesday 14			Wednesday 15			Thursday 16			Friday 17			Saturday 18			Sunday 19			Monday 20			Tuesday 21			Wednesday 22			Thursday 23			Friday 24			Saturday 25			Sun 26
	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	night	AM	PM	night	AM	PM	night	AM	PM	night	AM
Wave Height Map See all maps
High Tide	00:25AM2.46m			5:22PM2.26m			6:02PM2.41m			6:39PM2.50m			7:16PM2.53m			7:51PM2.52m	5:32AM2.19m		8:25PM2.50m	6:39AM2.01m		8:59PM2.47m	7:48AM1.80m		9:30PM2.44m	9:04AM1.60m		10:00PM2.39m	10:34AM1.47m		10:28PM2.33m		12:32PM1.48m	10:54PM2.26m		2:40PM1.68m	11:18PM2.19m		4:03PM1.93m	11:42PM2.13m		4:53PM2.12m	00:11AM2.08m
Low Tide	7:25PM1.93m	8:52AM-0.59m		8:46PM2.08m	9:42AM-0.80m		9:56PM2.10m	10:32AM-0.92m		10:59PM2.02m		11:22AM-0.94m	11:58PM1.87m		12:10PM-0.85m	00:57AM1.67m		12:56PM-0.66m	1:58AM1.43m		1:41PM-0.37m	3:00AM1.17m		2:25PM0.00m	4:02AM0.90m		3:08PM0.41m		5:01AM0.64m	3:53PM0.84m		5:55AM0.41m	4:44PM1.25m		6:45AM0.21m		5:53PM1.59m	7:31AM0.05m		7:24PM1.82m	8:15AM-0.07m		8:52PM1.93m	8:57AM-0.17m
Wave Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—

	cloudy	cloudy	cloudy	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	clear	clear	some clouds	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	clear	some clouds	some clouds	some clouds	cloudy	some clouds	some clouds	some clouds	clear	clear	clear	clear	clear	clear
km/h	SSW	S	SW	WSW	S	SW	NW	NNW	WNW	SSW	NNE	SSW	WSW	SSW	SSW	SW	SE	SSW	NNE	N	W	SW	S	SW	W	W	S	W	SE	S	SW	S	S	WSW	S	WSW	W	SW	SSE	W	SSE	SSE	SW	NNE	SW	S	E
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
max °C	18	14	17	18	15	17	18	15	19	20	16	20	22	14	18	20	14	17	18	17	20	21	16	22	20	14	19	21	13	17	18	14	18	20	15	20	19	14	16	15	14	16	16	15	18	19	15
Moonrise	—	1:53	—	—	2:47	—	—	3:59	—	—	5:24	—	—	6:53	—	—	8:20	—	—	9:42	—	—	10:59	—	—	12:13	—	—	1:26	—	—	2:38	—	—	—	3:49	—	—	4:58	—	—	6:03	—	—	7:00	—	—
Moonset	—	—	7:19	—	—	8:26	—	—	—	9:16	—	—	9:52	—	—	10:18	—	—	10:38	—	—	10:54	—	—	11:09	—	—	11:24	—	—	11:40	—	—	11:58	—	—	—	12:21	—	—	12:50	—	—	1:28	—	—	2:17
	—	5:20	—	—	5:22	—	—	5:22	—	—	5:24	—	—	5:24	—	—	5:26	—	—	5:28	—	—	5:28	—	—	5:30	—	—	5:31	—	—	5:31	—	—	5:33	—	—	5:33	—	—	5:35	—	—	5:37	—	—	5:37
	9:14	—	—	9:13	—	—	9:12	—	—	9:12	—	—	9:10	—	—	9:09	—	—	9:08	—	—	9:07	—	—	9:07	—	—	9:06	—	—	9:05	—	—	9:04	—	—	9:02	—	—	9:01	—	—	9:00	—	—	9:00	—
	Today's sea temperature in Roche Harbor, San Juan Island is 13.6° C (Statistics for 10 Jul 1981-2005 – mean: 14.3 max: 16.0 min: 12.2°C)