Thasos (Greece) in general has a mild climate. Temperatures during the day are in the range from 10 °C (51 °F) in January to 30 °C (86 °F) in August. Sea temperatures are in the following range: 12 °C (54 °F) in February to 25 °C (77 °F) in August. The least rainy month in Thasos is August with its 4 days of rain, the rainiest month is December, when it rains 9 days. Temperatures during the night go from 3 °C (37 °F) in February to 21 °C (70 °F) in July.
The best time to visit Thasos is between June and September. During this period, temperatures are between 25 °C (78 °F) - 30 °C (86 °F), night temperatures are between 17 °C (63 °F) - 21 °C (70 °F), rainfall averages 5 days per month, and 11 hours of sunlight on average. The sea temperature at this time of the year is around 22 °C (72 °F) - 25 °C (77 °F).
The period, which is the sunniest in Thasos, is in the months of June - August, when there is an average of 11 sun hours per day.
The period, with low amounts of rain in Thasos - dry season - lasts from July to October. In this period it is raining on average 4 days and approximately 28 mm (1.11 in) precipitation falls per month, which are values below average.
The hottest month in Thasos is August with a temperature of 30 °C (86 °F). The period with the highest daytime temperatures is in Thasos during June - August. The temperatures range at this time between 28 °C (82 °F) - 30 °C (86 °F).
The highest sea temperatures in Thasos could be expected between July - September. During these months the sea temperature reaches 23 °C (74 °F) - 25 °C (77 °F).
Thasos belongs to destinations with lower humidity. It ranges from 55 % to 77 %. The most humid months are November - January and the least humid are June - August.
The highest temperatures during the night in Thasos could be expected between June and August. During this time the night temperatures are between 18 °C (65 °F) - 21 °C (70 °F).
Yes, it can freeze at night in Thasos during these months: January - February, but the frosts can also be very rare or may not happen at all.
The least cloudy months in Thasos are June - September, when the cloud cover is on average only 24 %.
Thasos is a destination with rather light or moderate winds.