Cardiff Bay
| Ma | Di | Wo | Do | Vr | Za | Zo | Ma | |
|---|---|---|---|---|---|---|---|---|
| Wind |  | | | | | | | |
| Richting | | | | | | | | |
| Gemiddelde (kn) | 12 | 12 | 10 | 16 | 20 | 20 | 23 | 16 |
| Windstoot (kn) | 17 | 21 | 26 | 32 | 39 | 37 | 36 | 31 |
| Golven | | | | | | | | |
| Richting | | | | | | | | |
| Golfhoogte (m) | 0.6 | 1.1 | 0.9 | 1.6 | 1.9 | 1.3 | 2.5 | 1.8 |
| Periode (s) | 13 | 17 | 16 | 12 | 18 | 14 | 14 | 15 |
| Temp. | 5 | 3 | 9 | 12 | 11 | 9 | 9 | 8 |
| Wolken | 90 | 100 | 100 | 100 | 100 | 86 | 25 | 100 |
| Regen | 2.4 | 8.6 | 3.8 | 0.4 | 3.3 |