| Date / Heure | Houle | Période | Pression |
| 18/08 09:00 | 0.9 m | 07 s | 1005 Hpa |
| 18/08 08:00 | 1.0 m | 07 s | 1005 Hpa |
| 18/08 07:00 | 0.9 m | 07 s | 1005 Hpa |
| 18/08 06:00 | 0.8 m | 09 s | 1005 Hpa |
| 18/08 05:00 | 0.8 m | 09 s | 1005 Hpa |
| 18/08 04:00 | 0.9 m | 08 s | 1006 Hpa |
| 18/08 03:00 | 1.0 m | 08 s | 1006 Hpa |
| 18/08 02:00 | 1.1 m | 08 s | 1006 Hpa |
| 18/08 01:00 | 1.3 m | 08 s | 1007 Hpa |
| 18/08 00:00 | 1.3 m | 07 s | 1007 Hpa |
| 17/08 23:00 | 1.3 m | 07 s | 1007 Hpa |
| 17/08 22:00 | 1.4 m | 07 s | 1007 Hpa |
| 17/08 21:00 | 1.2 m | 07 s | 1007 Hpa |
| 17/08 20:00 | 1.0 m | 07 s | 1008 Hpa |
| 17/08 19:00 | 1.1 m | 07 s | 1009 Hpa |
| 17/08 17:00 | 0.9 m | 08 s | 1008 Hpa |
| 17/08 16:00 | 0.8 m | 08 s | 1009 Hpa |
| 17/08 15:00 | 1.4 m | 07 s | 1009 Hpa |
| 17/08 14:00 | 1.3 m | 08 s | 1009 Hpa |
| 17/08 13:00 | 1.2 m | 07 s | 1008 Hpa |
| 17/08 12:00 | 1.5 m | 07 s | 1008 Hpa |
| 17/08 11:00 | 1.6 m | 07 s | 1008 Hpa |
| 17/08 10:00 | 1.5 m | 06 s | 1007 Hpa |
| 17/08 09:00 | 1.6 m | 07 s | 1007 Hpa |
| 17/08 08:00 | 1.5 m | 07 s | 1007 Hpa |
| 17/08 07:00 | 1.5 m | 07 s | 1007 Hpa |
| 17/08 06:00 | 1.4 m | 08 s | 1007 Hpa |
| 17/08 05:00 | 1.3 m | 07 s | 1007 Hpa |
| 17/08 04:00 | 1.6 m | 08 s | 1007 Hpa |
| 17/08 03:00 | 1.6 m | 07 s | 1006 Hpa |
| 17/08 02:00 | 1.8 m | 07 s | 1006 Hpa |
| 17/08 01:00 | 1.9 m | 07 s | 1007 Hpa |
| 17/08 00:00 | 2.5 m | 07 s | 1007 Hpa |
| 16/08 23:00 | 2.4 m | 06 s | 1007 Hpa |
| 16/08 22:00 | 2.6 m | 07 s | 1007 Hpa |
| 16/08 21:00 | 2.4 m | 07 s | 1007 Hpa |
| 16/08 20:00 | 2.1 m | 07 s | 1008 Hpa |
| 16/08 18:00 | 1.5 m | 06 s | 1009 Hpa |
| 16/08 17:00 | 1.3 m | 06 s | 1010 Hpa |
| 16/08 16:00 | 1.3 m | 06 s | 1011 Hpa |
| 16/08 15:00 | 1.3 m | 06 s | 1012 Hpa |
| 16/08 14:00 | 1.2 m | 06 s | 1013 Hpa |
| 16/08 13:00 | 1.1 m | 06 s | 1013 Hpa |
| 16/08 12:00 | 1.1 m | 06 s | 1014 Hpa |
| 16/08 11:00 | 0.9 m | 06 s | 1015 Hpa |
| 16/08 10:00 | 0.9 m | 06 s | 1015 Hpa |
| 16/08 09:00 | 0.8 m | 06 s | 1015 Hpa |
| 16/08 08:00 | 0.8 m | 06 s | 1016 Hpa |
| 16/08 07:00 | 0.8 m | 07 s | 1016 Hpa |
| 16/08 06:00 | 0.6 m | 07 s | 1017 Hpa |
| 16/08 05:00 | 0.7 m | 08 s | 1018 Hpa |
| 16/08 04:00 | 0.8 m | 08 s | 1019 Hpa |
| 16/08 03:00 | 0.8 m | 08 s | 1019 Hpa |
| 16/08 01:00 | 1.2 m | 08 s | 1020 Hpa |
| 16/08 00:00 | 1.3 m | 07 s | 1020 Hpa |
| 15/08 23:00 | 1.2 m | 07 s | 1020 Hpa |
| 15/08 22:00 | 1.3 m | 07 s | 1019 Hpa |
| 15/08 21:00 | 1.3 m | 07 s | 1019 Hpa |
| 15/08 20:00 | 1.2 m | 06 s | 1019 Hpa |
| 15/08 19:00 | 1.1 m | 06 s | 1019 Hpa |
GPS: 49.9, -2.9
Relevés de la bouée Bretagne (62103)
WCT | Le 16/08/2019
Un long cycle de houle provenant du Sud-ouest est attendu et frappera de plein fouet la vague d'Hava'e.