Greece is experiencing a sweltering heatwave on Saturday, July 5, 2025, as temperatures are expected to reach up to 39 degrees Celsius across the country. The combination of high temperatures and weakening winds has created a suffocating atmosphere under a thermal dome affecting much of Europe.
According to the Hellenic National Meteorological Service (EMY), the weather will be generally clear with isolated clouds over northern mountainous areas during midday and afternoon hours, possibly leading to brief showers.
Winds in western regions will remain weak and variable, occasionally picking up as westerly-northwesterly at 3-4 Beaufort. In eastern areas, northerly winds are expected to blow at 4-6 Beaufort.
Temperatures inland will range between 36 and 38 degrees Celsius, reaching up to 39 degrees in some northern areas. On the Ionian and Dodecanese islands, temperatures will hover around 35-36 degrees, while the Cyclades will experience more moderate conditions not exceeding 29 degrees Celsius.
The favorable weather conditions will continue into Sunday, July 5, with locally high temperatures for the season. During the hottest hours, cloud development over mountainous inland areas could lead to isolated showers.
In Western Macedonia, temperatures will range from 14 to 34 degrees Celsius, while in the rest of Macedonia and Thrace, they will reach 35-37 degrees. In Thessaly, readings will vary between 16 and 37-39 degrees, and in western Greece, temperatures may even hit 40 degrees Celsius in some areas.
In Attica, expect sunny skies and intense heat, with northeasterly winds blowing at 3-4 Beaufort. Temperatures will range from 25 to 36 degrees Celsius. In Thessaloniki, limited cloud cover is expected during the hotter parts of the day, with southerly winds at 2-3 Beaufort and temperatures ranging from 25 to 34 degrees Celsius.
A very high fire risk (level 4) has been forecast for Attica and Evia, according to the Fire Danger Map issued by the General Secretariat of Civil Protection under the Ministry of Climate Crisis and Civil Protection. Authorities urge residents and visitors to remain cautious and vigilant due to the extreme fire danger.