Monthly average Temp Athens 2007 was min 48 max 66 degrees this year slightly warmer at min 51 to max 69 But if I could tell you the likely outcome for 2009 I think I might be a millionaire as know one really can but it looks not bad for that time of the year in this area but the seas might be a bit choppier. Certainly sitting out sunbathing with the movement of the ship it will not be roasting !!!
We went to the Black Sea in early May on Thomsons Calypso which covered Turkey and Greece. Although the sky's were blue the wind from the north was chilling which we did not expect.On the plus side there are sun traps on the Calypso.