The following is a list of the most extreme temperatures ever recorded in Greece.
Greece has recorded a high temperature of 48.0 ðC in Elefsina and Tatoi (both located in the Athens metropolitan area). In June 2007, Monemvasia in mainland Greece recorded a minimum temperature of 35.9 ðC.
The lowest temperature ever recorded was -27.8 ðC in Ptolemaida on the 27th of January 1963 (a sinkhole in Kechroti recorded -35.3 ðC in January 2012).
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 ðC, the second station in Tatoi (belonging to the National Observatory of Athens) recorded 48.7 ðC and the stations in Volos, Velestino and Messara registered 48.0 ðC (these readings have not been confirmed).
On the night between 25 and 26 of June 2007 the temperature did not drop below 38.0 ðC in the Palaiochora National Observatory of Athens station. On the night of the 11th of January 2021 the National Observatory of Athens station in Falasarna recorded a temperature of 28.3 ðC due to strong Föhn winds while the minimum temperature for that day was 22.6 ðC marking both the highest January temperature during a night and the highest January minimum temperature ever recorded in Greece.