The following is a list of the most extreme temperatures ever recorded in Greece.

Greece holds the record for the highest maximum and highest minimum temperatures in Continental Europe, with 48.0 °C in Elefsina and Tatoi (both located in the Athens metropolitan area) and with 35.9 °C in Monemvasia respectively. ^{[1] [2] [3]}

According to the national press of the time, on the 10th of July 1977 the Hellenic National Meteorological Service station in Almyros recorded 49.0 °C and the stations in Volos, Velestino and Messara registered 48.0 °C ^{[4] [5] [6] [7]} while the second station in Tatoi which belonged to the National Observatory of Athens recorded 48.7 °C ^[8] (these readings have not been confirmed). ^[8]

On the night between 25 and 26 of June 2007 the temperature did not drop below 38.0°C in the Palaiochora World Meteorological Organization station. ^[9] On the night of the 11th of January 2021 the World Meteorological Organization station in Falasarna recorded a stunning temperature of 28.3 °C due to strong foehn winds while the minimum temperature for that day was 22.6 °C marking both the highest January temperature during a night and the highest January minimum temperature ever recorded in Greece.^{[10] [11][12]}