Harlech
| Ma | Ti | Ke | To | Pe | La | Su | Ma | |
|---|---|---|---|---|---|---|---|---|
| Tuuli |  | | | | | | | |
| Suunta | | | | | | | | |
| Keskiarvo (kn) | 27 | 21 | 10 | 15 | 12 | 11 | 11 | 7 |
| Puuska (kn) | 32 | 23 | 11 | 18 | 15 | 11 | 12 | 7 |
| Aallot | | | | | | | | |
| Suunta | | | | | | | | |
| Korkeus (m) | 1.6 | 1.3 | 0.4 | 1 | 0.7 | 0.7 | 1.1 | 1 |
| Ajanjakso (s) | 11 | 6 | 18 | 14 | 12 | 13 | 6 | 15 |
| Lämpö | 4 | 6 | 4 | 6 | 4 | 4 | 6 | 6 |
| Pilvet | 100 | 85 | 100 | 80 | 100 | 70 | 100 | 100 |
| Sade | 6.1 | 0.8 | 0.9 |