Temperatures across Greece are set to soar as high as 40°C tomorrow, Saturday, 22 August, according to the latest detailed forecast issued by the Hellenic National Meteorological Service (EMY). The agency reports predominantly clear skies nationwide, with only scattered, short-lived cloud cover expected—mainly during midday and afternoon hours over mountainous inland areas, where isolated thunderstorms or brief showers may occur.
Regional Outlook
Macedonia & Thrace: Skies will remain mostly clear, though increased cloudiness is possible in the afternoon over mountainous parts of Macedonia, bringing a chance of localized rain or thunderstorms. Winds will be light and variable at 2–3 on the Beaufort scale, shifting to easterly or northeasterly at 3–4 Beaufort in eastern areas during morning hours. Temperatures will range from 21°C to 38–39°C, with pockets of the central Macedonian region possibly reaching 40°C.
Ionian Islands, Epirus, Western Central Greece & Western Peloponnese: Generally clear conditions prevail, but elevated cloud cover may develop inland over mountainous zones in the afternoon, triggering isolated rainfall or thunderstorms. Winds will blow from the west or northwest at 4–5 Beaufort, locally intensifying to 6 Beaufort. Temperatures will vary between 23°C and 34°C, rising to 35–37°C in some inland areas.
Thessaly, Eastern Central Greece, Evia, Eastern Peloponnese: Clear skies dominate, with occasional afternoon cloud buildup over inland mountains—potentially resulting in isolated thunderstorms. Winds will remain light and variable (3–4 Beaufort), strengthening slightly to 4 Beaufort from southern directions in southern areas. Thermometers will climb from 22°C to 38–39°C, with isolated spots hitting 40°C.
Cyclades & Crete: Predominantly sunny, with no significant precipitation expected. Winds will be northerly or northwesterly at 4–5 Beaufort, occasionally reaching 6 Beaufort. Temperatures will range from 24°C to 34°C—reaching 35–36°C on Crete.
Eastern Aegean Islands & Dodecanese: Sunny and dry overall. Northerly to northwesterly winds at 4–5 Beaufort—locally up to 6 Beaufort—will persist. Temperatures will span 24°C to 36°C, climbing to 37°C in southern areas.
Attica: Mostly clear, with limited cloud development along coastal areas in the afternoon. Winds will be light and variable (2–3 Beaufort), shifting to southerly at up to 3 Beaufort near southern coasts during midday and afternoon. Temperatures will range from 23°C to 36–37°C, possibly peaking at 38°C in isolated locations.
Thessaloniki: Clear skies throughout the day. Light, variable winds (2–3 Beaufort) will shift to southerly near southern coastal zones in the afternoon, remaining under 3 Beaufort. Temperatures will range from 22°C to 36°C.
Early-morning visibility may be locally reduced in western regions. Residents are advised to stay hydrated, avoid prolonged sun exposure during peak heat hours, and monitor updates from EMY for any last-minute changes.