There's nothing like an all-inclusive holiday in Megara to rejuvenate you, especially when you know what kind of weather to expect. Here's some information to help you decide when to book: The hottest months are usually July and August, with an average temperature of 26°C, while the coldest months are January and February, with an average of 11°C. July and August are the driest months, while December and February are the rainiest months.