A change in the weather is expected across Greece starting today, with heavy rainfall and strong winds expected for the next 48 hours.

Specifically, as meteorologist, Thodoros Kolydas said in a post on X, from today, Thursday, May 15, a “change in the weather is expected from the West with rainfall that will affect much of the country on Friday and locally, especially in the northwest, will be heavy. At the same time, very strong winds will blow on Friday and there will be a dust transfer to the south.”

These changes are due to the arrival of the low pressure from Tunisia in our country, the meteorologist explains. However, the weather is expected to improve from Sunday, May 18.

See the post by Thodoris Kolydas:

Additional, but significant, episode of African dust transfer

According to meteo.gr/National Observatory of Athens forecast data, strong changes in atmospheric circulation over the Mediterranean are expected to cause a temporary, but significant, episode of African dust transport in the evening hours of Thursday 15/05.

The cause of these changes in atmospheric circulation will be the movement of a barometric low from the Gulf of Sirte into the Black Sea and Turkey.

More specifically, winds from south to southeast directions that will precede the low pressure system as it approaches our country will carry large amounts of African dust, with a peak on Friday 16/05. On the contrary, the winds from the west to northwest that will follow the low as it moves away from our country will displace the African dust towards the Eastern Mediterranean.

THURSDAY 15-05-2025

Thin clouds quickly becoming thicker in the west and gradually in the rest of the regions, except Crete. From the midday hours there will be local showers in the Ionian Sea and the mainland, except Thrace. At night the phenomena will extend to the Cyclades. Isolated thunderstorms will occur from the evening in the northwest.
In the southeastern Aegean Sea the winds will be northwestern 4 to 6 Beaufort with gradual weakening. In the rest of the country the winds will blow east southeast at 3 to 5 Beaufort, in the Sporades locally 6 and in the Ionian Sea 6 to 7 Beaufort.
The temperature will rise slightly and will reach 20 to 23 degrees Celsius in the north and 23 to 25 degrees Celsius in the rest of the regions.

FRIDAY 16-05-2025

In the Ionian Sea, Epirus, western and central Sterea, western Peloponnese, Macedonia, Thrace, Thessaly and northern Aegean clouds with showers and thunderstorms, possibly heavy in places. In the rest of the country, thin clouds, sometimes more dense, with local showers and isolated thunderstorms mainly in the morning hours.
The transport of African dust to the south is favoured.
Winds will blow in the west, central and northern areas east southeast at 4 to 6 and in the Ionian Sea locally 7 Beaufort, gradually becoming north northwest at the same intensity. In the rest of the country the winds will blow from southerly directions 4 to 6 Beaufort and in the seas locally 7 to 8 Beaufort.
The temperature will drop slightly in the north and rise slightly in the south. It will reach 18 to 21 degrees Celsius in the north, 22 to 25 degrees Celsius in the rest of the regions and 26 to 29 degrees Celsius in the south.

 SATURDAY 17-05-2025
On the mainland and the islands of the northern and eastern Aegean, clouds, partly cloudy with local showers and occasional thunderstorms, possibly strong in places until noon in Thrace and the islands of the northeastern Aegean. In the rest of the country, partly cloudy, with the possibility of occasional local rain. Gradually from the afternoon the weather will improve.
Winds will blow in the west, central and northern parts of the country west northwest at 4 to 6 Beaufort. In the rest of the regions, the winds will be south-southwestern 4 to 6 Beaufort and in the Aegean Sea locally 7 Beaufort, gradually becoming westerly with the same intensity.
The temperature will rise slightly in the north and fall slightly in the south.

SUNDAY 18-05-2025
Generally clear weather. In the midday and afternoon hours, some clouds will develop on the mainland and local rain is possible in the northern mountains.
Winds will blow west northwest 3 to 5 and in the south locally 6 Beaufort.
The temperature will not change significantly.

MONDAY 19-05-2025
Generally clear weather. In the midday and afternoon hours, there will be some clouds in the central and northern continents and local rain is possible in the northern mountains.
Winds will blow west southwest 3 to 5 and in the south locally 6 Beaufort.
The temperature will rise slightly.