The heatwave has begun today, Sunday (July 6, 2025), and is expected to intensify as a thermal dome descends over Europe. Temperatures are set to surpass 40°C and remain at that level until Wednesday. The rise in temperature will be gradual, with the heatwave starting in western Macedonia before spreading across the rest of the country.
High temperatures are expected to last for four days, with Monday and Tuesday being the hottest, where mercury levels could reach up to 42°C in several regions. The National Meteorological Service (EMY) warns that ‘very high temperatures are expected across the country from Sunday (06-07-25) through Wednesday (09-07-25).’
Today’s forecast includes high temperatures across inland areas and the Ionian Sea. Maximum temperatures are projected to reach:
– 38 to 39°C, possibly reaching 40°C locally in Macedonia, Thessaly, Epirus, and western Central Greece.
– 37 to 39°C in eastern Central Greece and the Peloponnese.
– 35 to 36°C on the Ionian islands.
Localized cloudiness is expected over central and northern inland areas during midday and afternoon hours, with brief showers occurring in mountainous areas of Epirus and Macedonia. Winds will be variable and weak in western regions, occasionally turning westerly-northwesterly at 3 to 4 Beaufort during midday and afternoon hours. In eastern regions, northerly winds will blow at 3 to 5 Beaufort, increasing to 6 Beaufort in the central and northern Aegean Sea.
Sunshine and high temperatures are expected in most parts of the country, with showers during the warmest hours of the day in northwestern mountainous areas. Wind gusts of up to 5 Beaufort are expected in the Aegean.
Specifically, on Sunday, July 6, weather conditions across the country will be mostly clear with high temperatures. Clouds will develop in inland mountainous areas during the warmest hours, with localized showers in the northwestern mountains.
Temperature ranges are as follows:
– Western Macedonia: 16 to 34–36°C
– Rest of Macedonia and Thrace: 18 to 35–37°C, locally reaching 38°C
– Thessaly: 16 to 38–39°C, locally reaching 40°C
– Western Greece: 22 to 38–40°C
– Other inland areas: 22 to 37–39°C
– Ionian Islands: 21 to 34–36°C
– Aegean islands and Crete: 21 to 32–34°C
– Eastern Aegean islands: Locally reaching 36–38°C
In Attica, sunny skies and considerable heat are expected. Winds will be northeasterly at 2–4 Beaufort, with temperatures ranging between 26 and 38°C. In Thessaloniki, expect sunshine with occasional clouds during the warmest hours of the day. Winds will be southerly at 2–3 Beaufort, with temperatures ranging between 25 and 35°C.
Looking ahead, weather forecasts indicate continued intense heat:
– **Monday, July 7:** Generally clear weather with temporary clouds in inland mountainous areas during midday and afternoon hours. Local showers possible in the mountains of Macedonia and Thessaly. Temperatures may reach up to 41°C inland.
– **Tuesday, July 8:** Mostly sunny with temporary clouds in central and northern mountainous areas. Temperatures expected to reach up to 42°C in some regions.
– **Wednesday, July 9:** Generally clear with local clouds during midday and afternoon hours in northern and central mountainous areas. Slight drop in temperatures in western regions, but high temperatures persist elsewhere.
– **Thursday, July 10:** Increased cloudiness with local showers and isolated thunderstorms in Macedonia and Thrace. Improved conditions by late evening. High temperatures continue in southeastern regions.