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Kallithéa (Greece) in general has a mild climate. Temperatures during the day are in the range from 11.5 °C (52.7 °F) in January to 31.1 °C (88.0 °F) in July. Temperatures during the night go from 3.3 °C (37.9 °F) in February to 20.3 °C (68.5 °F) in July. The driest month is August with just 3 days of rain, on the contrary, the month when it rains the most is December with 7 days of rain. The highest sea temperatures in Kallithéa are in August with 25.9 °C (78.6 °F) and the lowest in February with 13.2 °C (55.8 °F).
The best time to visit Kallithéa is between June and September. During this period, temperatures are between 26.7 °C (80.1 °F) - 31.1 °C (88.0 °F), night temperatures are between 16.7 °C (62.1 °F) - 20.3 °C (68.5 °F), rainfall averages 4 days per month, and 10.3 hours of sunlight on average. The sea temperature at this time of the year is around 22.5 °C (72.5 °F) - 25.9 °C (78.6 °F).
The warmest sea is in Kallithéa between July - September. During these months the sea temperature reaches 23.9 °C (75.0 °F) - 25.9 °C (78.6 °F).
The period, with low amounts of rain in Kallithéa - dry season - lasts from June to September. In this period it is raining on average 4 days and approximately 23 mm (0.90 in) precipitation falls per month, which are values below average.
The hottest month in Kallithéa is July with a temperature of 31.1 °C (88.0 °F). The period with the highest daytime temperatures is in Kallithéa during June - August. The temperatures range at this time between 28.9 °C (84.0 °F) - 31.1 °C (88.0 °F).
No, you are unlikely to experience frosts in Kallithéa.
The highest night temperatures in Kallithéa occur in the months of June - August. During this time the night temperatures are between 18.1 °C (64.6 °F) - 20.3 °C (68.5 °F).
Kallithéa belongs to destinations with lower humidity. It is in the range of 56 % - 78 %. The most humid months are November - January and the least humid are June - August.
The period, which is the sunniest in Kallithéa, is in the months of June - August, when there is an average of 10.9 sun hours per day.
The least cloudy months in Kallithéa are June - August, when the cloud cover is on average only 24 %.
Kallithéa is a destination with rather light or moderate winds.