Great St Lawrence 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 04:23 PM.
Days 1–4 Weather SummaryLight rain (total 8mm), mostly falling on Sat morning. Icy conditions (max 10°C on Sat morning, min -2°C on Sat night). Winds increasing (moderate winds from the WSW on Thu night, gales from the S by Sat morning). | Days 5–7 Weather SummaryLight rain (total 8mm), mostly falling on Sun night. Icy conditions (max 5°C on Sun night, min -3°C on Mon night). Winds decreasing (strong winds from the WNW on Mon night, light winds from the S by Tue night). | Days 8–10 Weather SummaryA moderate fall of snow, heaviest on Fri night. Turning milder with moderate rain (total 10mm), heaviest on Fri night. Freeze-thaw conditions (max 5°C on Fri night, min -4°C on Thu night). Winds increasing (calm on Thu night, near gales from the SE by Fri night). | Days 11–13 Weather SummaryMostly dry. Freeze-thaw conditions (max 2°C on Sat afternoon, min -5°C on Sun night). Winds decreasing (strong winds from the W on Sat afternoon, light winds from the N by Sun afternoon). | |||||||||||||||||||||||||||||||||
Thu 18 | Friday 19 | Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | Monday 29 | Tue 30 | ||||||||||||||||||||||||
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 | 7:32PM1.52m | 8:02AM1.99m | 8:17PM1.54m | 8:46AM2.01m | 8:57PM1.56m | 9:28AM2.02m | 9:35PM1.59m | 10:07AM2.02m | 10:11PM1.63m | 10:43AM2.00m | 10:48PM1.66m | 11:20AM1.97m | 11:29PM1.70m | 11:57AM1.92m | 00:15AM1.74m | 12:39PM1.85m | 1:11AM1.80m | 1:27PM1.78m | 2:14AM1.87m | 2:21PM1.72m | 3:17AM1.96m | 3:18PM1.67m | 4:16AM2.06m | |||||||||||||
Low Tide | 1:23PM0.80m | 1:06AM0.66m | 1:59PM0.76m | 1:41AM0.63m | 2:35PM0.72m | 2:15AM0.62m | 3:12PM0.70m | 2:49AM0.62m | 3:50PM0.67m | 3:27AM0.63m | 4:30PM0.65m | 4:09AM0.66m | 5:11PM0.64m | 4:57AM0.71m | 5:53PM0.62m | 5:52AM0.75m | 6:36PM0.60m | 6:53AM0.79m | 7:22PM0.59m | 7:58AM0.82m | 8:14PM0.58m | 9:11AM0.82m | 9:14PM0.58m | 10:26AM0.80m | ||||||||||||
SW 9 | SW 10 | SW 9 | SW 9 | S 8 | SSW 11 | SSW 12 | SW 12 | SW 12 | SW 11 | S 8 | SSW 8 | SW 9 | SW 10 | W 7 | W 7 | SW 9 | SSE 5 | SSE 8 | SSW 10 | SSW 11 | SSW 10 | S 9 | SSE 9 | SSE 9 | SSE 9 | SSW 10 | SSW 11 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SSW 9 | SSW 9 | SSW 8 | E 5 | |
 |  | |  |  |  |  |  |  | |  | | | | | | | |  | | | | |  | |  | | | | | | | | | | | |
clear | clear | clear | some clouds | cloudy | mod rain | rain shwrs | some clouds | cloudy | cloudy | mod rain | some clouds | some clouds | some clouds | clear | clear | some clouds | cloudy | snow shwrs | cloudy | some clouds | some clouds | some clouds | light snow | cloudy | mod snow | cloudy | some clouds | clear | cloudy | some clouds | some clouds | some clouds | cloudy | cloudy | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | 7 | 1 | — | — | — | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — | |
max°C | -1 | 1 | 4 | 7 | 9 | 10 | 3 | 0 | 0 | 1 | 5 | 3 | -1 | -2 | -3 | -3 | -1 | 2 | 1 | 1 | -1 | -2 | -4 | -1 | 0 | 5 | 4 | 2 | 0 | -4 | -3 | -5 | -4 | -3 | -2 | -1 |
Moonrise | — | — | 7:58 | — | — | 8:50 | — | — | 9:32 | — | — | 10:05 | — | — | 10:31 | — | — | 10:52 | — | — | 11:10 | — | — | 11:27 | — | — | 11:43 | — | — | 12:01 | — | — | 12:22 | — | — | 12:49 |
Moonset | — | — | — | 3:34 | — | — | 4:29 | — | — | 5:34 | — | — | 6:44 | — | — | 7:56 | — | — | — | 9:09 | — | — | 10:22 | — | — | 11:35 | — | — | — | 12:51 | — | — | 2:10 | — | — | 3:33 |
 | — | — | 7:52 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 | — | — | 7:56 |
 | 4:23 | — | — | 4:23 | — | — | 4:23 | — | — | 4:24 | — | — | 4:24 | — | — | 4:25 | — | — | 4:25 | — | — | 4:27 | — | — | 4:28 | — | — | 4:29 | — | — | 4:29 | — | — | 4:30 | — | — |
Today's sea temperature in Great St Lawrence is 3.8° C (Statistics for 18 Dec 1981-2005 – mean: 3.2 max: 5.5 min: 1.5°C) | ||||||||||||||||||||||||||||||||||||
Nearest