September begins with heat and afternoon showers, with cooler weather later in the week

September will arrive in Greece with a largely summer-like pattern: sunshine across most areas, high temperatures and bursts of unstable weather during the afternoon.

On Tuesday, September 1, mainland temperatures will generally reach 34 to 36 degrees Celsius, with isolated readings of 37 degrees. Island temperatures will range from 30 to 34 degrees. Attica will see clear skies and temperatures from 22 to 36 degrees, while Thessaloniki will reach 33 degrees with limited cloud and possible showers in nearby mountains.

The forecast calls for local rain and showers in western and northern mainland areas, particularly over mountainous terrain. On Wednesday, these conditions are expected in Macedonia, Epirus, western Central Greece, western Peloponnese and the mountains of Thessaly. Isolated thunderstorms may continue in northern areas into the evening.

Winds will generally come from the north. They will reach up to 6 Beaufort in parts of the Aegean, while the Ionian will see lighter winds of up to 5 Beaufort. On Thursday, cloud and local showers will first affect Central Macedonia and Thessaly before spreading to other mainland areas. Isolated mountain thunderstorms are also possible, with improvement expected from the evening. Stronger northerly winds toward the end of the week should bring a modest further fall in temperatures.