Penthievre Mer
| Di | Wo | Do | Vr | Za | Zo | Ma | Di | |
|---|---|---|---|---|---|---|---|---|
| Wind |  | | | | | | | |
| Richting | | | | | | | | |
| Gemiddelde (kn) | 11 | 15 | 11 | 8 | 9 | 8 | 12 | 8 |
| Windstoot (kn) | 14 | 16 | 11 | 8 | 10 | 10 | 16 | 8 |
| Golven | | | | | | | | |
| Richting | | | | | | | | |
| Golfhoogte (m) | 0.5 | 1 | 1 | 0.5 | 0.7 | 1 | 1 | 0.7 |
| Periode (s) | 3 | 9 | 9 | 7 | 12 | 10 | 13 | 10 |
| Temp. | 17 | 15 | 14 | 10 | 16 | 16 | 13 | 15 |
| Wolken | 99 | 71 | 16 | 43 | 100 | 100 | 69 | 100 |
| Regen | 0.8 | 0.1 |