The climate in GreeceAverage daytime and nighttime temperatures
All climatic diagrams of this page are taken from the collected data from 30 measuring stations in Greece.
Weather stations at an altitude above 890m have not been included.
All data correspond to the average monthly values of the last 20 years.
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Climate zone: The northern part of Greece is located in the temperate climatic zone, while the southern part is subtropical.
In 6 months the average temperatures are over 25 degrees. Pleasant water temperatures of up to 25 degrees even invite you to take a bath in the warm season. Due to the warmer temperatures the best time for traveling is from June to August. Nearly unattractive for tourists are the cold months from November to March.
› Duration of daylight and sunshine in Greece
hours of sunshine per day
rainy days per month
Precipitation in mm/day
Relative humidity in %
Absolute humidity in g/m³ (approx.)
Climate charts for other regions in Greece
Temperature records of the last 72 yearsThe hottest temperature measured from 1949 to June 2021 was reported by the Athen Ellinikon weather station. In August 2012 the record temperature of 41.8 °C was reported here. The hottest summer from July to September, based on all 14 weather stations in Greece below 890 metres altitude, was recorded in 2012 with an average temperature of 27.9 °C. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 25.9 degrees Celsius. The average maximum daily temperature at that time was 32.5 °C.
The coldest day in these 72 years was reported by the weather station Larissa Airp. Here the temperature dropped to -8.4 °C in February 2021. Larissa Airp lies at an altitude of 74 meters above sea level. The coldest winter (January to March) was in 1949 with an average temperature of 8.2 °C. In Greece, it is usual to have about 2.3 degrees more at 10.4 °C for this three-month period.
The most precipitation fell in Dezember 1973. With 30.6 mm per day, the Zakynthos weather station recorded the highest monthly average of the last 72 years. Incidentally, the region with the most rainfall for the whole year is around Kerkyra Airp. The driest region is near Athen Ellinikon.
Long-term development of temperatures from 1978 - 2020In contrast to single record values, a long-term development cannot simply be brought about by all weather stations in the country. Both the number and the locations are constantly changing. A simply calculated average value would give a falsified result. If several measuring stations in particularly cold mountain or coastal regions are added in one year, the average would already decrease as a result of this alone. If a station fails during the summer or winter months, it does not provide any values and falsifies the average again. The subsequent long-term development was therefore reduced to only 2 measuring points in order to have actually comparable data over as long a period as possible.
In the years 1978 to 2020 there were only these 2 weather stations in the whole country, which reported continuous temperature values (Herakleion, Kerkyra). From these weather reports we have created a long-term development that shows the monthly average temperatures. The hottest month in this entire period was 2012 with 29.2 °C. 1991 was the coldest month with an average temperature of 8.7 °C.
The average annual temperature was about 17.8 °C in the years after 1978 and about 19.3 °C in the last years before 2020. So in less than 43 years it has increased by about 1.6 °C. This trend only applies to the selected 2 weather stations in Greece. A considerably more comprehensive evaluation of the global warming has been provided separately.
More detailed information on global warming with a view by continent can also be found on our topic page on climate change. Data basis: German Weather Service, individual values averaged and supplemented by own elements.