On Wednesday, Greece will experience mostly clear weather, with occasional clouds developing. During midday and afternoon hours, cloud cover will increase over mainland areas and Crete, bringing a small chance of light showers in mountainous regions and the southern parts of Chania, Crete. Visibility may be locally reduced during the early morning and evening hours.

Temperatures will remain warm for late September. In Northern Greece, values will range from 14–31°C, with Western Macedonia slightly cooler at 11–28°C. Epirus will see 14–29°C, while Thessaly will record some of the highest values at 14–33°C. In the Ionian Islands, temperatures will reach 17–28°C, while Central Greece and the Peloponnese will see 17–31°C. The Aegean Islands will range from 16–27°C (22–28°C in Rhodes), and Crete from 13–29°C.

Winds will blow from the west in western Greece and from the northwest in the east, generally light to moderate at 3–5 Beaufort.

In Athens, the forecast is for sunny weather throughout the day. Winds will be northwesterly, shifting briefly to southerly during the afternoon, at 2–4 Beaufort. Temperatures will range from 17–30°C.

In Thessaloniki, conditions will also be mostly clear, with light and variable winds at 2–4 Beaufort. Temperatures will range between 14–29°C.

Overall, Wednesday will be a pleasant day across Greece, with warm temperatures and mostly sunny skies, making it ideal for sightseeing, though some local clouds and isolated showers are possible in Crete and mountain areas.