Kallithéa (Greece) in general has a mild climate. Temperatures during the day are in the range from 12 °C (53 °F) in January to 31 °C (88 °F) in July. Temperatures during the night go from 3 °C (38 °F) in February to 20 °C (69 °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 26 °C (79 °F) and the lowest in February with 13 °C (56 °F).
The best time to visit Kallithéa is between June and September. During this period, temperatures are between 27 °C (80 °F) - 31 °C (88 °F), night temperatures are between 17 °C (62 °F) - 20 °C (69 °F), rainfall averages 4 days per month, and 10 hours of sunlight on average. The sea temperature at this time of the year is around 23 °C (73 °F) - 26 °C (79 °F).
The warmest sea is in Kallithéa between July - September. During these months the sea temperature reaches 24 °C (75 °F) - 26 °C (79 °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 °C (88 °F). The period with the highest daytime temperatures is in Kallithéa during June - August. The temperatures range at this time between 29 °C (84 °F) - 31 °C (88 °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 °C (65 °F) - 20 °C (69 °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 11 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.