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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.
Other Locations Near to Mykonos. Reviewing the forecast for Mykonos Over the next 7 days and the average daytime maximum temperature will be around 31Â°C, with a high for the week of 33Â°C expected on the afternoon of Thursday 18th. The mean minimum temperature will be 24Â°C, dipping to its lowest on the morning of Thursday 25th at 23Â°C.