Trearddur Bay
| Dc | Dj | Dv | Ds | Dg | Dl | Dm | Dc | |
|---|---|---|---|---|---|---|---|---|
| Vent |  | | | | | | | |
| Direcció | | | | | | | | |
| Mitjana (kn) | 12 | 11 | 11 | 15 | 17 | 20 | 15 | 11 |
| Ràfega (kn) | 15 | 11 | 16 | 20 | 19 | 28 | 20 | 16 |
| Onades | | | | | | | | |
| Direcció | | | | | | | | |
| Alçada (m) | 0.8 | 0.8 | 0.5 | 0.9 | 1.3 | 1.4 | 2.2 | 0.9 |
| Període (s) | 5 | 5 | 3 | 4 | 5 | 6 | 8 | 8 |
| Temp. | 8 | 8 | 7 | 9 | 9 | 11 | 11 | 12 |
| Núvols | 97 | 69 | 65 | 100 | 97 | 81 | 50 | |
| Pluja | 0.4 | 0.1 | 0.5 | 0.2 |