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Mykonos: Annual Weather Averages. July is the hottest month in Mykonos with an average temperature of 26Â°C (79Â°F) and the coldest is January at 9Â°C (48Â°F) with the most daily sunshine hours at 14 in July. The wettest month is November with an average of 170mm of rain.
36 Hours in Mykonos, Greece. Boats moored just off Psarou Beach. NOT so long ago Mykonos, one of the Aegeanâs most popular islands, onto which jumbo cruise ships deposit as many as 15,000 day-trippers a day, was awash in just about everything but glamour. The Greek island was easily dismissed as too crowded, too expensive, too much of a clichÃ©.