| Average of temperatures and percentage of sunny days per months: | ||||
| Surface sea water. | Maximum | Minimum | % Sunny days | |
| January | 12,2 | 12,6 | 4,5 | 59 % |
| February | 12,1 | 12,9 | 5,2 | 53 % |
| March | 12,5 | 14,3 | 6,7 | 53 % |
| April | 13,3 | 16,4 | 8,9 | 55 % |
| May | 15 | 19,2 | 12 | 52 % |
| June | 18,7 | 23,2 | 16 | 61 % |
| July | 21,3 | 26,4 | 18,9 | 75 % |
| August | 22,1 | 25,8 | 18,7 | 67 % |
| September | 20,6 | 23,5 | 16,2 | 65 % |
| October | 18,3 | 19,9 | 12 | 62 % |
| November | 15,7 | 15,7 | 7,8 | 59 % |
| December | 13,6 | 13,5 | 5,4 | 59 % |