I will be spending about 6 to 7 days in Southern Spain. We will have a car, so I kind of want to take it as it come and plan as we go along. Is it easy to get a hotel without a reservation?

Thanks.

when? August can be much more difficult.small towns easier.

million dollar question. What happens if you can only find accommodation which is over your budget? What happens if you have to drive a lot more KM to find somewhere which has vacancies? What happens if you can only find a flea bitten place which is below your standards?

I honestly don't believe that you'll have that much of a problem. The European economy is not too robust at the moment and hotels are not bursting at the seams. You may well be able to do a deal on walk up prices if you call in at a hotel that you fancy without booking.

We did exactly this on a driving holiday down into Italy from the UK without any bookings and got discounts even at large 4 and 5 star places through France, Switzerland and Italy. Only the very occasional place was full and they did tend to be the smaller hotels.

I will be in that part of Spain, the first week of October.

Great million dollar question. I was hoping that October would be light with booking hotels on go. Definitely don't want any flea bitten places. Thanks all for your responses.

I'm not surprised at being able to get a room at a 4 or 5* place. I think the bigger problem is if you are looking for a plesant 3* place - which are mor elikely to be booked in advance.

Does your budget allow for 4 and 5* hotels?

I wouldn't do it regardless of the season. I have better things to do with my time than wandering around trying to find someplace to spend the night when making a reservation in advance is so much easier.

You'll also want to consider that the days are a shorter in October, so if you are planning on playing it by ear, you'll need to start looking for that hotel a little earlier in the day.

I do not think you'll have problems finding accomodation. In fact, I am sure it'd be profitable to bargain at the counter.
Flea-bitten places belong to the past.

For those who do not understand "flea bitten" is a figure of speech for run down.

My "in between" making reservations and winging it solution:
Before I go, I check hotels at the starting point of my trip on booking.com - and then drag that map out of focus to follow my planned route.
You will see icons for rural hotels popping up sometimes just 2-5 kms off the main road - which you would not have found otherwise.
Obviously, booking.com does not list all hotels in each town, but you can see if you drive through areas/towns with a lot of hotels or not. And you get an idea how expensive the hotels are.