Weather and climate in Arenal Den Castell
Like the rest of Menorca and the Balearic Islands, this resort enjoys a warm Mediterranean climate. That means long, hot dry summers and very mild winters, with the sunniest weather in July and August. Sea temperatures are normally in the low to mid-20s °C from June until October, which is much warmer than what you would experience in the UK. In fact, it's common to see people swimming in the sea in November, when the water temperature is often several degrees higher than that off the English south coast in high summer.