Alex gave you a very complete answer and I would also second June. I just checked the Jewish calendar for June 2007 and do not see any special holidays where services might be reduced or places of interest closed. The days are longer and there is no worry of rain, and ofcourse, the water in the Mediterranean is warmer.

When you are ready to firm up your plans, we will help direct you in the appropriate direction.

Bettina in Jerusalem, where the wild flowers and almond trees are in bloom