Roundstone
| Vr | Za | Zo | Ma | Di | Wo | Do | Vr | |
|---|---|---|---|---|---|---|---|---|
| Wind |  | | | | | | | |
| Richting | | | | | | | | |
| Gemiddelde (kn) | 9 | 18 | 20 | 14 | 16 | 16 | 17 | 17 |
| Windstoot (kn) | 9 | 21 | 23 | 19 | 28 | 26 | 29 | 29 |
| Golven | | | | | | | | |
| Richting | | | | | | | | |
| Golfhoogte (m) | 0.8 | 1.7 | 2.8 | 1.8 | 2 | 2.7 | 2.5 | 2 |
| Periode (s) | 8 | 12 | 12 | 11 | 8 | 13 | 11 | 10 |
| Temp. | 10 | 11 | 9 | 10 | 12 | 12 | 14 | 12 |
| Wolken | 88 | 100 | 100 | 94 | 100 | 95 | 100 | |
| Regen | 0.2 | 1.5 | 0.4 | 0.8 | 2.5 |