| Date / Heure | Houle | Période | Pression |
| 01/10 11:00 | 0.0 m | - | 1020 Hpa |
| 01/10 10:00 | 0.0 m | - | 1020 Hpa |
| 01/10 09:00 | 0.0 m | - | 1021 Hpa |
| 01/10 08:00 | 0.0 m | - | 1021 Hpa |
| 01/10 05:00 | 0.0 m | - | 1021 Hpa |
| 01/10 04:00 | 0.0 m | - | 1022 Hpa |
| 01/10 03:00 | 0.0 m | - | 1022 Hpa |
| 01/10 02:00 | 0.0 m | - | 1022 Hpa |
| 30/09 23:00 | 0.0 m | - | 1022 Hpa |
| 30/09 22:00 | 0.0 m | - | 1023 Hpa |
| 30/09 21:00 | 0.0 m | - | 1023 Hpa |
| 30/09 20:00 | 0.0 m | - | 1023 Hpa |
| 30/09 17:00 | 0.0 m | - | 1024 Hpa |
| 30/09 16:00 | 0.0 m | - | 1024 Hpa |
| 30/09 15:00 | 0.0 m | - | 1024 Hpa |
| 30/09 14:00 | 0.0 m | - | 1024 Hpa |
| 30/09 11:00 | 0.0 m | - | 1025 Hpa |
| 30/09 10:00 | 0.0 m | - | 1025 Hpa |
| 30/09 09:00 | 0.0 m | - | 1025 Hpa |
| 30/09 08:00 | 0.0 m | - | 1025 Hpa |
| 30/09 05:00 | 0.0 m | - | 1026 Hpa |
| 30/09 04:00 | 0.0 m | - | 1026 Hpa |
| 30/09 03:00 | 0.0 m | - | 1027 Hpa |
| 30/09 02:00 | 0.0 m | - | 1027 Hpa |
| 29/09 22:00 | 0.0 m | - | 1026 Hpa |
| 29/09 21:00 | 0.0 m | - | 1025 Hpa |
| 29/09 20:00 | 0.0 m | - | 1025 Hpa |
| 29/09 19:00 | 0.0 m | - | 1024 Hpa |
| 29/09 17:00 | 0.0 m | - | 1024 Hpa |
| 29/09 16:00 | 0.0 m | - | 1024 Hpa |
| 29/09 15:00 | 0.0 m | - | 1024 Hpa |
| 29/09 14:00 | 0.0 m | - | 1024 Hpa |
| 29/09 11:00 | 0.0 m | - | 1021 Hpa |
| 29/09 10:00 | 0.0 m | - | 1020 Hpa |
| 29/09 09:00 | 0.0 m | - | 1019 Hpa |
| 29/09 08:00 | 0.0 m | - | 1018 Hpa |
| 29/09 05:00 | 0.0 m | - | 1013 Hpa |
| 29/09 04:00 | 0.0 m | - | 1012 Hpa |
| 29/09 03:00 | 0.0 m | - | 1010 Hpa |
| 29/09 02:00 | 0.0 m | - | 1009 Hpa |
| 28/09 23:00 | 0.0 m | - | 1009 Hpa |
| 28/09 22:00 | 0.0 m | - | 1009 Hpa |
| 28/09 21:00 | 0.0 m | - | 1009 Hpa |
| 28/09 20:00 | 0.0 m | - | 1009 Hpa |
| 28/09 17:00 | 0.0 m | - | 1012 Hpa |
| 28/09 16:00 | 0.0 m | - | 1013 Hpa |
| 28/09 15:00 | 0.0 m | - | 1014 Hpa |
| 28/09 14:00 | 0.0 m | - | 1014 Hpa |
| 28/09 11:00 | 0.0 m | - | 1015 Hpa |
| 28/09 10:00 | 0.0 m | - | 1015 Hpa |
| 28/09 09:00 | 0.0 m | - | 1015 Hpa |
| 28/09 08:00 | 0.0 m | - | 1014 Hpa |
| 28/09 05:00 | 0.0 m | - | 1014 Hpa |
| 28/09 04:00 | 0.0 m | - | 1014 Hpa |
| 28/09 03:00 | 0.0 m | - | 1014 Hpa |
| 28/09 02:00 | 0.0 m | - | 1014 Hpa |
| 27/09 23:00 | 0.0 m | - | 1012 Hpa |
| 27/09 22:00 | 0.0 m | - | 1011 Hpa |
| 27/09 21:00 | 0.0 m | - | 1010 Hpa |
| 27/09 20:00 | 0.0 m | - | 1009 Hpa |
GPS: 49.9, -2.9
Relevés de la bouée Bretagne (62103)