Grande-Synthe 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 04:54 PM.
Days 1–4 Weather SummarySome drizzle, heaviest during Sat night. Cool air temperatures (max 17°C on Sun morning, min 4°C on Thu afternoon). Winds increasing (calm on Thu afternoon, strong winds from the SSW by Sat night). | Days 5–7 Weather SummaryHeavy rain (total 24mm), heaviest during Sun night. Cool air temperatures (max 17°C on Sun afternoon, min 9°C on Tue morning). Mainly strong winds. | Days 8–10 Weather SummaryMostly dry. Very mild (max 14°C on Fri night, min 8°C on Thu night). Winds decreasing (strong winds from the SW on Wed afternoon, light winds from the SW by Thu night). | Days 11–13 Weather SummaryLight rain (total 2mm), mostly falling on Sun night. Very mild (max 15°C on Sat afternoon, min 10°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||||||||||||
Thu 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 1 | Monday 2 | Tue 3 | ||||||||||||||||||||||||
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 | 4:33PM4.91m | 4:53AM4.64m | 5:28PM4.52m | 5:49AM4.32m | 6:31PM4.21m | 6:54AM4.11m | 7:41PM4.07m | 8:04AM4.06m | 8:49PM4.11m | 9:10AM4.16m | 9:47PM4.27m | 10:04AM4.35m | 10:34PM4.48m | 10:50AM4.59m | 11:15PM4.71m | 11:32AM4.83m | 11:53PM4.91m | 12:10PM5.04m | 00:30AM5.09m | 12:47PM5.21m | 1:06AM5.22m | 1:24PM5.32m | 1:43AM5.30m | |||||||||||||
Low Tide | 11:26PM1.31m | 11:49AM1.25m | 00:21AM1.64m | 12:49PM1.49m | 1:25AM1.84m | 1:57PM1.62m | 2:35AM1.89m | 3:06PM1.60m | 3:41AM1.79m | 4:07PM1.48m | 4:36AM1.59m | 4:58PM1.29m | 5:22AM1.35m | 5:42PM1.09m | 6:03AM1.12m | 6:22PM0.90m | 6:41AM0.92m | 7:01PM0.76m | 7:19AM0.77m | 7:39PM0.67m | 7:56AM0.68m | 8:16PM0.64m | 8:34AM0.65m | |||||||||||||
N 7 | NW 5 | WNW 6 | NW 6 | N 8 | WSW 5 | SW 6 | WSW 8 | WSW 8 | WSW 8 | WSW 8 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | WSW 6 | SW 5 | WSW 7 | WSW 8 | WSW 6 | W 5 | W 4 | N 7 | N 6 | N 5 | WSW 5 | WSW 5 | WSW 5 | SW 4 | WSW 5 | WSW 6 | WSW 4 | WSW 4 | N 9 | N 7 | N 7 | |
 |  | |  | |  | |  | | |  |  |  | | | | | | |  | | | | | | | | | | | |  | | |  | | |
some clouds | some clouds | some clouds | clear | some clouds | cloudy | cloudy | rain shwrs | cloudy | cloudy | heavy rain | rain shwrs | light rain | rain shwrs | some clouds | cloudy | some clouds | clear | clear | clear | clear | clear | clear | some clouds | cloudy | some clouds | some clouds | clear | some clouds | some clouds | cloudy | light rain | some clouds | cloudy | cloudy | cloudy | |
km/h | ||||||||||||||||||||||||||||||||||||
— | — | — | — | — | — | — | 1.0 | — | — | 16 | 1.0 | 5 | 2.0 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2.0 | — | — | — | — | |
max°C | 5 | 5 | 6 | 7 | 6 | 6 | 7 | 13 | 17 | 17 | 15 | 11 | 10 | 10 | 10 | 11 | 12 | 11 | 11 | 11 | 10 | 10 | 9 | 9 | 12 | 14 | 14 | 15 | 14 | 14 | 14 | 12 | 12 | 12 | 12 | 11 |
Moonrise | — | 10:24 | — | — | 11:40 | — | — | — | 12:52 | — | — | 2:02 | — | — | 3:10 | — | — | 4:20 | — | — | 5:31 | — | — | 6:44 | — | — | 7:59 | — | — | 9:14 | — | — | 10:22 | — | — | 11:19 |
Moonset | 1:43 | — | 2:00 | — | — | 2:13 | — | — | 2:24 | — | — | 2:34 | — | — | 2:44 | — | — | 2:55 | — | — | — | 3:08 | — | — | 3:24 | — | — | 3:46 | — | — | 4:17 | — | — | 5:02 | — | 6:02 |
 | — | — | 8:18 | — | — | 8:21 | — | — | 8:22 | — | — | 8:23 | — | — | 8:26 | — | — | 8:26 | — | — | 8:27 | — | — | 8:30 | — | — | 8:30 | — | — | 8:33 | — | — | 8:33 | — | — | 8:34 |
 | 4:54 | — | — | 4:53 | — | — | 4:52 | — | — | 4:52 | — | — | 4:51 | — | — | 4:50 | — | — | 4:49 | — | — | 4:47 | — | — | 4:47 | — | — | 4:46 | — | — | 4:46 | — | — | 4:45 | — | — |
Today's sea temperature in Grande-Synthe is 12.9 °C (Statistics for 21 Nov 1981-2005 – mean: 11.5 max: 13.4 min: 9.7°C) | ||||||||||||||||||||||||||||||||||||
Nearest