@ slykat,
You do raise some good points. Speculation is always risky. You may choose to wait for august in the hopes that the shilling will slide further, but world events are unpredictable. Considering that many diaspora Kenyans have also noted shilling the losing value, it is likely that they will start purchasing vast amounts thereby slowing its slide, as you know as summer ends in the West and the tourist season starts which also may increase demand for ksh. Historical analysis also shows that the shilling is unlikely to lose value to really drastically.
As for the euro, for foreign traders, its preffered to the shilling as its more convertible. Hence while the euro may lose against the dollar, but still gain against the ksh. Hedge your bets as a good trader, buy some shillings now and monitor the rate in the coming weeks. But dont fail to buy anything pinning all your hopes on ksh weakening further.