It depends....are you open to buying a short sale property? If so, the short sale process can take 4-6 months from the time your offer is accepte to actual closing of escrow (assuming that the short sale is approved).
It can't hurt to start looking now and get familiar with the home prices and home values in areas you're interested in.
If you're looking to buy, using a conventional loan, close of escrow may be 30 days or less. If you're getting an FHA loan, it could take 45 days or longer.
If you find a home where the owners would like a rent-back, by the time you close escrow, it will be September.
What do your realtor and your lender say?