Friday, 17 July 2026, will bring predominantly clear skies across Greece as the country settles under a strong heat dome. According to the Hellenic National Meteorological Service (EMY), temperatures are set to rise further, with many areas reaching 33–35°C — and locally hitting 36–37°C in inland regions. In western mainland Greece, isolated spots may even reach 38°C.
Regional Outlook
Attica
The weather will be generally sunny. Winds will be northerly to north-easterly at 3–5 on the Beaufort scale, locally reaching 6 in eastern Attica during the afternoon. Temperatures will range from 24°C to 35–36°C, with the highest readings slightly lower — by 2–3°C — in eastern areas.
Thessaloniki
Skies will remain mostly clear, though brief cloud cover is expected during midday and afternoon hours — potentially triggering isolated showers, mainly over nearby mountainous terrain. Winds will be variable at 3–4 Beaufort, shifting to southerly or south-easterly at 4 Beaufort in the afternoon. Temperatures will range from 23°C to 35°C.
Macedonia & Thrace
Generally sunny, with passing clouds developing in the afternoon — particularly over central and eastern Macedonia. Local rain or thunderstorms are possible in mountainous zones, and isolated thunderstorms may occur in parts of central Macedonia. Winds will be variable at 3–4 Beaufort. Temperatures will range from 19°C to 34°C, rising to 35–36°C in central Macedonia.
Ionian Islands, Epirus, Western Central Greece, Western Peloponnese
Mostly clear, with short-lived cloud development over inland areas during the afternoon. Isolated showers or thunderstorms are expected over mountainous regions. Winds will be variable at 3–4 Beaufort; in the Ionian Sea, north-westerly winds may locally reach 5 Beaufort. Temperatures will range from 21°C to 35°C — up to 37°C inland, and locally 38°C.
Thessaly, Eastern Central Greece, Evia, Eastern Peloponnese
Generally sunny, with brief afternoon cloudiness over inland areas — leading to isolated showers or thunderstorms in mountainous zones, including isolated thunderstorms over Thessaly’s mountains. Winds will be variable at 3–4 Beaufort; in eastern areas, northerly to north-easterly winds may locally reach 5–6 Beaufort. Temperatures will range from 23°C to 36–37°C.
Cyclades & Crete
Sunny conditions prevail. Winds will blow from northern directions at 5–6 Beaufort, locally reaching 7. Temperatures will range from 23°C to 30°C — and up to 33–34°C in Crete.
Eastern Aegean Islands & Dodecanese
Clear skies throughout. Northerly winds will range from 5–6 Beaufort, occasionally strengthening to 7. Temperatures will range from 24°C to 34–35°C.