Porthtowan
| Mo | Tu | We | Th | Fr | Sa | Su | Mo | |
|---|---|---|---|---|---|---|---|---|
| Wind |  | | | | | | | |
| Direction | | | | | | | | |
| Average (kn) | 17 | 21 | 16 | 23 | 30 | 19 | 25 | 20 |
| Gust (kn) | 23 | 32 | 28 | 39 | 49 | 33 | 39 | 32 |
| Waves | | | | | | | | |
| Direction | | | | | | | | |
| Height (m) | 1.8 | 3.5 | 2.8 | 3.9 | 5.6 | 3.6 | 5.7 | 4 |
| Period (s) | 12 | 18 | 16 | 14 | 18 | 14 | 15 | 15 |
| Temp. | 8 | 8 | 10 | 12 | 12 | 9 | 12 | 9 |
| Clouds | 100 | 100 | 100 | 100 | 51 | 100 | 100 | |
| Rain | 0.1 | 1.1 | 1.9 | 13.8 | 1.1 |