Porthtowan
| Do | Vr | Za | Zo | Ma | Di | Wo | Do | |
|---|---|---|---|---|---|---|---|---|
| Wind |  | | | | | | | |
| Richting | | | | | | | | |
| Gemiddelde (kn) | 23 | 32 | 16 | 30 | 17 | 11 | 10 | 20 |
| Windstoot (kn) | 38 | 55 | 21 | 47 | 24 | 14 | 19 | 31 |
| Golven | | | | | | | | |
| Richting | | | | | | | | |
| Golfhoogte (m) | 4 | 5.5 | 3.9 | 5.2 | 5 | 3.1 | 2.7 | 4.4 |
| Periode (s) | 13 | 18 | 15 | 13 | 17 | 14 | 10 | 11 |
| Temp. | 12 | 12 | 11 | 11 | 10 | 9 | 7 | 8 |
| Wolken | 100 | 100 | 5 | 100 | 3 | 14 | 100 | 100 |
| Regen | 1.8 | 1 | 3.3 | 0.6 | 0.2 | 0.9 |