The climate in Naxos island is dry, with mild winters and summers cooled by the northerly winds (meltemia), that blows through the Aegean during the hotest months. From the end of July and throughout August, as in all the Cyclades islands, northerly winds, known as meltemia, blow strongly. Although they have a blessedly cooling effect they can be a hazard to boats out at the sea and tricky for the swimmers too, to the extend that some of the most exposed beaches can be practically unusable. Between the months of May and September, the average daytime highest temperature is 28-30 C and the average night-time lowest temperature is 18-20 C.