Please don't panic! Even if the weather breaks whilst you are there it won't be like 2 weeks in the UK in August! Went last October half term (the very last week). The week before had been scorching but was scheduled to 'break' as soon as we landed. I had visions of rain every day, but the reality was we had a couple of days/ nights where it rained a bit, but the rest was utterly gorgeous and on the last day baking at noon. Have a lovely time.