Cross-offshore wind. Only with rescue or experience.
Current against the wind: easier to hold ground.
| Wed 19 August | Thu 20 August · grof model | Fri 21 August · grof model | Sat 22 August · grof model | Sun 23 August · grof model | Mon 24 August · grof model | Tue 25 August · grof model | Wed 26 August · grof model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| GO | No-go | No-go | No-go | No-go | No-go | No-go | No-go | Marginal | Marginal | Go | Go | Go | Go | Go | Go | Go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | Marginal | Marginal | Marginal | Marginal | Marginal | Marginal | No-go | Marginal | Marginal | Go | Go | Go | Go | Marginal | Go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | Marginal | Marginal | Marginal | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | Marginal | Marginal | Marginal | No-go | Go | Go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | Go | Go | Go | Go | Go | Go | Go | Go | Go | Go | Go | Go | Go | Go | Go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | Go | Go | Go | Marginal | Marginal | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go | No-go |
| Wind | 1116 | 1115 | 1318 | 1318 | 1319 | 1218 | 1318 | 1622 | 1623 | 2432 | 2031 | 1926 | 1925 | 1724 | 1622 | 1521 | 1120 | 914 | 712 | 410 | 37 | 48 | 914 | 1115 | 1318 | 1219 | 1318 | 1420 | 1020 | 1424 | 1523 | 1422 | 1319 | 1319 | 1522 | 1723 | 1624 | 922 | 1726 | 1826 | 2027 | 2332 | 2332 | 2030 | 1727 | 1423 | 1221 | 1118 | 1117 | 1117 | 1117 | 1016 | 916 | 916 | 816 | 714 | 613 | 712 | 712 | 611 | 510 | 610 | 610 | 710 | 712 | 913 | 914 | 813 | 912 | 814 | 712 | 711 | 611 | 510 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 59 | 610 | 711 | 812 | 813 | 914 | 1014 | 1015 | 1116 | 1117 | 1218 | 1319 | 1219 | 1219 | 1118 | 1017 | 1016 | 915 | 914 | 813 | 812 | 812 | 812 | 812 | 812 | 812 | 813 | 913 | 914 | 1015 | 1116 | 1218 | 1219 | 1319 | 1319 | 1419 | 1520 | 1520 | 1521 | 1420 | 1318 | 1317 | 1317 | 1418 | 1419 | 1519 | 1520 | 1621 | 1722 | 1723 | 1824 | 1824 | 1824 | 1824 | 1925 | 2027 | 2128 | 2129 | 2129 | 2129 | 2129 | 2128 | 2128 | 2027 | 1927 | 1826 | 1725 | 1723 | 1722 | 1622 | 1622 | 1622 | 1521 | 1319 | 1218 | 1116 | 1015 | 1013 | 913 | 913 | 913 | 913 | 912 | 812 | 812 | 811 | 711 |
| Sky | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | rain | rain | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | sunny | partly cloudy | partly cloudy | clear night | partly cloudy | clear night | clear night | partly cloudy | partly cloudy | clear night | clear night | partly cloudy | cloudy | cloudy | showers | showers | showers | showers | showers | showers | partly cloudy | sunny | partly cloudy | sunny | partly cloudy | sunny | sunny | clear night | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | cloudy | showers | showers | showers | showers | showers | showers | showers | showers | thunderstorm | thunderstorm | thunderstorm | showers | showers | showers | showers | showers | thunderstorm | thunderstorm | thunderstorm | thunderstorm | thunderstorm | showers | thunderstorm | thunderstorm | thunderstorm | showers | showers | showers | showers | showers | showers | cloudy | cloudy | cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | showers | showers | showers | partly cloudy | partly cloudy | partly cloudy | cloudy | cloudy | cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | partly cloudy | sunny | clear night | clear night | clear night | clear night | clear night | clear night | clear night | clear night | clear night | sunny | sunny | sunny | sunny | sunny | sunny | sunny | sunny | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | cloudy | partly cloudy | partly cloudy | partly cloudy | cloudy | cloudy | cloudy | partly cloudy | partly cloudy | partly cloudy |
| individual models per hour — tap to collapse | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| AROME | 11 | 11 | 13 | 13 | 13 | 12 | 13 | 16 | 16 | 24 | 20 | 19 | 19 | 17 | 16 | 15 | 11 | 9 | 7 | 4 | 3 | 4 | 9 | 11 | 13 | 12 | 13 | 14 | 10 | 14 | 15 | 14 | 13 | 13 | 15 | 17 | 16 | 9 | 17 | 18 | 20 | 23 | 23 | 20 | 17 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| HARMONIE | 10 | 9 | 9 | 11 | 12 | 12 | 13 | 12 | 14 | 14 | 18 | 17 | 16 | 14 | 12 | 12 | 10 | 9 | 9 | 11 | 11 | 11 | 11 | 12 | 13 | 14 | 12 | 13 | 8 | 14 | 9 | 9 | 11 | 9 | 13 | 12 | 15 | 12 | 14 | 14 | 14 | 16 | 17 | 18 | 14 | 13 | 13 | 10 | 9 | 9 | 8 | 16 | 16 | 14 | 13 | 15 | 12 | 4 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| ICON | 12 | 10 | 9 | 9 | 10 | 10 | 11 | 11 | 14 | 14 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 7 | 8 | 9 | 8 | 7 | 9 | 10 | 12 | 13 | 15 | 12 | 11 | 12 | 13 | 12 | 15 | 16 | 17 | 16 | 15 | 15 | 15 | 14 | 16 | 18 | 16 | 15 | 14 | 12 | 11 | 11 | 11 | 11 | 10 | 9 | 9 | 8 | 7 | 6 | 7 | 7 | 6 | 5 | 6 | 6 | 7 | 7 | 9 | 9 | 8 | 9 | 8 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 12 | 12 | 11 | 10 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 11 | 12 | 12 | 12 | 12 | 12 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| GFS | 13 | 7 | 6 | 9 | 12 | 17 | 16 | 20 | 23 | 21 | 22 | 20 | 19 | 16 | 16 | 14 | 14 | 10 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 14 | 14 | 15 | 17 | 19 | 20 | 18 | 17 | 15 | 15 | 15 | 18 | 21 | 20 | 18 | 20 | 23 | 22 | 20 | 20 | 16 | 14 | 13 | 11 | 9 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 9 | 8 | 7 | 6 | 8 | 11 | 14 | 14 | 12 | 11 | 10 | 9 | 8 | 7 | 5 | 4 | 3 | 3 | 3 | 5 | 8 | 11 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 12 | 11 | 11 | 11 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 11 | 11 | 10 | 11 | 9 | 9 | 11 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 8 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 9 | 11 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 10 | 11 | 11 | 12 | 12 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 |
| Direction | SSW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | WSW | W | W | W | W | W | WNW | WNW | SW | SSW | SSW | SW | SSW | SSW | SSW | SW | SW | SW | SW | SW | SSW | SSW | SW | SW | WSW | SW | SW | WSW | WSW | WSW | WSW | SW | WSW | SW | SW | SW | SW | SW | SW | WSW | WSW | WSW | WSW | WSW | WSW | W | NW | NW | NW | NNW | NNW | NNW | N | N | N | N | N | N | N | N | NNW | NNW | NNW | NNW | NNW | NNW | N | N | NNE | NNE | NNE | NNE | NNE | NNE | NNE | N | N | N | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | NNE | N | N | N | N | N | W | S | N | NNE | NNE | NE | NE | NE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | ENE | NE | NE | NE | NE | NE | NNE | NNE | NE | NE | NE | NE | NE | NE | NE | NE | NNE | NNE | NNE | NNE | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Kite | – | – | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 9m | 9m | 9m | 9m | 12m | 12m | 12m | – | – | – | – | – | – | – | – | 12m | 12m | 12m | 12m | – | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | – | 12m | 12m | 9m | 9m | 9m | 9m | 12m | 12m | 12m | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 12m | 12m | 12m | 12m | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 9m | 9m | 9m | 9m | 9m | 9m | 9m | 9m | 9m | 9m | 9m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | 12m | – | – | – | – | – | – | – | – | – | – | – | – |
| Waves | 0.56 | 0.54 | 0.52 | 0.5 | 0.5 | 0.48 | 0.48 | 0.46 | 0.46 | 0.46 | 0.48 | 0.48 | 0.52 | 0.54 | 0.58 | 0.58 | 0.6 | 0.6 | 0.62 | 0.62 | 0.64 | 0.66 | 0.66 | 0.68 | 0.66 | 0.64 | 0.62 | 0.62 | 0.6 | 0.6 | 0.6 | 0.62 | 0.62 | 0.64 | 0.64 | 0.66 | 0.66 | 0.66 | 0.66 | 0.72 | 0.76 | 0.82 | 0.86 | 0.92 | 0.96 | 0.9 | 0.86 | 0.8 | 0.74 | 0.7 | 0.64 | 0.6 | 0.56 | 0.52 | 0.48 | 0.46 | 0.42 | 0.4 | 0.38 | 0.36 | 0.36 | 0.38 | 0.38 | 0.42 | 0.44 | 0.48 | 0.52 | 0.58 | 0.62 | 0.66 | 0.68 | 0.72 | 0.7 | 0.7 | 0.68 | 0.66 | 0.66 | 0.64 | 0.62 | 0.62 | 0.6 | 0.6 | 0.58 | 0.58 | 0.58 | 0.6 | 0.6 | 0.64 | 0.66 | 0.7 | 0.72 | 0.76 | 0.78 | 0.76 | 0.76 | 0.74 | 0.72 | 0.68 | 0.66 | 0.64 | 0.62 | 0.6 | 0.58 | 0.58 | 0.56 | 0.56 | 0.54 | 0.54 | 0.54 | 0.52 | 0.52 | 0.52 | 0.54 | 0.54 | 0.54 | 0.56 | 0.56 | 0.58 | 0.58 | 0.6 | 0.6 | 0.58 | 0.58 | 0.58 | 0.56 | 0.56 | 0.54 | 0.54 | 0.52 | 0.52 | 0.52 | 0.52 | 0.52 | 0.52 | 0.52 | 0.54 | 0.54 | 0.56 | 0.58 | 0.6 | 0.62 | 0.64 | 0.64 | 0.66 | 0.66 | 0.66 | 0.66 | 0.66 | 0.64 | 0.64 | 0.62 | 0.6 | 0.58 | 0.58 | 0.56 | 0.56 | 0.54 | 0.5 | 0.48 | 0.46 | 0.44 | 0.42 | 0.4 | 0.38 | 0.36 | 0.34 | 0.34 | 0.32 |
| Current | 1.1 | 0.7 | stil | 0.5 | 1.4 | 2.1 | 1.8 | 1.1 | 0.5 | stil | 0.7 | 1.2 | 1.2 | 0.8 | 0.3 | stil | 0.9 | 1.6 | 1.8 | 1.2 | 0.5 | stil | 0.6 | 1.2 | 1.3 | 1.0 | 0.5 | stil | 0.6 | 1.3 | 1.7 | 1.4 | 0.8 | 0.4 | stil | 0.8 | 1.2 | 1.1 | 0.6 | stil | 0.3 | 1.0 | 1.5 | 1.5 | 1.0 | 0.5 | 0.3 | 0.4 | 1.1 | 1.2 | 0.8 | 0.4 | stil | 0.6 | 1.2 | 1.4 | 1.1 | 0.6 | 0.3 | stil | 0.9 | 1.3 | 1.2 | 0.8 | 0.3 | stil | 0.5 | 0.9 | 0.8 | 0.4 | stil | stil | 0.8 | 1.4 | 1.4 | 1.0 | 0.6 | 0.3 | stil | 0.7 | 0.9 | 0.6 | 0.3 | stil | 0.5 | 1.2 | 1.5 | 1.3 | 0.8 | 0.4 | stil | 0.4 | 0.8 | 0.7 | 0.5 | 0.3 | stil | 0.8 | 1.4 | 1.4 | 1.0 | 0.6 | 0.3 | stil | 0.6 | 0.8 | 0.6 | 0.4 | stil | 0.5 | 1.3 | 1.5 | 1.2 | 0.8 | 0.5 | stil | 0.3 | 0.7 | 0.7 | 0.5 | 0.4 | stil | 0.9 | 1.4 | 1.3 | 1.0 | 0.7 | 0.5 | stil | 0.6 | 0.8 | 0.7 | 0.5 | stil | 0.6 | 1.4 | 1.5 | 1.2 | 0.9 | 0.8 | 0.3 | 0.4 | 0.9 | 0.9 | 0.7 | 0.4 | stil | 1.1 | 1.5 | 1.4 | 1.1 | 0.9 | 0.6 | stil | 0.7 | 1.0 | 0.8 | 0.6 | stil | 0.7 | 1.3 | 1.4 | 1.1 | 0.8 | 0.5 | stil | 0.8 | 1.3 |
Log your sessions; that is how Windulu gets to know you.
The advice is a tool. You remain responsible for your own safety.
The open water at Knokke-Heist faces N (350°). The safest wind directions to get on the water here are north, northeast and northwest (onshore or cross-onshore). With the wind from the east, southeast, southwest and west, it runs cross to cross-offshore: doable, but mind your position and don't go alone. With the wind from the south, it blows offshore and is dangerous: you'll be pushed off the beach onto open water (no-go).
All spots in the region: the Belgian coast