The next week is expected to begin with significant instability, featuring scattered showers or thunderstorms, mainly in the afternoon and evening over the mainland, according to the director of the National Meteorological Service (EMY), Thodoris Kolydas.

As he explains in his post, cold air masses that will change the weather conditions “are coming from the northeast, specifically Ukraine, and will move over our region through the Black Sea—an atmospheric circulation not typical for this time of year.”

“If the systems and cold air masses were coming from the Central Mediterranean, they could bring higher amounts of rainfall,” added Mr. Kolydas.

Detailed forecast for Saturday, according to EMY:

The weather will be generally clear with temporary clouds during the midday and afternoon hours in the western and northern mainland. Winds will blow from the north at 3 to 5 Beaufort in the west, 4 to 6 Beaufort in the east, and locally up to 7 Beaufort in the Aegean Sea.

Temperatures will remain high without significant change. In the mainland, temperatures will reach 36-38°C, 36-37°C in the Dodecanese and southern Crete, 32-33°C in the rest of the islands, and locally 35-36°C in the Ionian Islands and the eastern Aegean.

Macedonia, Thrace:

Weather: Generally clear. Temporary clouds will develop in the midday and afternoon hours.
Winds: Variable 2-4 Beaufort, up to 5 Beaufort in the east.
Temperature: 19-37°C, with minimums 3-4°C lower in western Macedonia.

Ionian Islands, Epirus, Western Greece:

Weather: Generally clear, with temporary clouds in the afternoon over the mainland.
Winds: Variable 3-4 Beaufort, gradually shifting to westerly 4-5 Beaufort.
Temperature: 22-37°C, with lower temperatures in the interior of Epirus.

Eastern Greece, Evia, Peloponnese:

Weather: Generally clear with temporary clouds in the mountains in the afternoon.
Winds: Northeasterly 4-6 Beaufort.
Temperature: 23-38°C.

Cyclades, Crete:

Weather: Clear skies.
Winds: Northerly 5-7 Beaufort.
Temperature: 24-36°C in southern Crete, 24-32°C in the Cyclades.

Islands of the Eastern Aegean – Dodecanese:

Weather: Clear skies.
Winds: Northerly 5-7 Beaufort.
Temperature: 23-36°C.

Thessaly:

Weather: Generally clear with temporary clouds in the mainland during the afternoon.
Winds: Northeasterly 3-4 Beaufort.
Temperature: 21-37°C, 33°C in the Sporades.

Attica:

Weather: Generally clear.
Winds: Northeasterly 4-6 Beaufort.
Temperature: 23-37°C, 3-4°C lower in the eastern areas.

Thessaloniki:

Weather: Generally clear with temporary clouds in the afternoon.
Winds: Variable 2-4 Beaufort.
Temperature: 20-35°C.

Sunday Forecast (August 25):
Clear skies with light clouds in the north. Showers or isolated thunderstorms will develop in the afternoon in the central, western, and southern mainland. Temperatures will slightly drop.

Monday Forecast (August 26):
Clear skies with afternoon clouds and scattered thunderstorms in the central and western mainland. Further slight cooling.