The weather changes from today with high temperatures easing and north winds strengthening, but the coolness will not last long as the country is expected to enter a new heatwave from Sunday.

According to meteorologists, the new week will begin with the thermometer again exceeding 40 degrees Celsius in several areas.

The peak of the heat wave is expected next Friday, July 18, and will affect areas such as the Thessalian plain, areas of the eastern Peloponnese, and Athens. The discomfort, especially in the big cities, will be intense during the evening hours as the temperature will not drop to normal levels.

Meteorologist Giorgos Tsatrafyllias describes the new wave of high temperatures that will hit the country from Sunday, 13 July onwards as “obsessive heat”.

“From tomorrow until Saturday, we will get a breath of fresh air, with the mercury not exceeding 32 -33 degrees. However, from Sunday, two major forecasting centers (European ECMWF and American GFS) give us a signal for a period of prolonged heat, which is not excluded midweek to turn into a heat wave of increased intensity, “he notes, among other things.

The temperature exceeded 42 °C on Wednesday, July 9

Very high temperatures prevailed on Wednesday, 9 July 2025, mainly in the eastern continental parts of the country, where the mercury exceeded 42°C. The highest temperature was recorded in Kranidi, Argolida, where it reached 42.1°C.

As shown in the map below, according to the network of automatic weather stations of the National Observatory of Athens / meteo.gr, 125 weather stations in the network recorded maximum temperatures above 37°C.

A significant temperature rise was also recorded in Attica, due to strong westerly winds from the Corinthian Gulf. These winds, arriving in Attica, turn into katabatic winds and contribute to the increase in temperature, especially in the eastern parts of the prefecture. A typical example is Nea Makri, where the temperature reached 39.5°C at noon.

The weather today

Sunshine is forecast, with clouds in the continental highlands in the midday and afternoon hours, while there is a possibility of local showers in the northeastern mainland.

The temperature will range in Western Macedonia from 12 to 28 degrees, in the rest of Macedonia and Thrace from 18 to 32 degrees, in Thessaly from 19 to 33 degrees, in Epirus from 12 to 33 degrees, in the Ionian Islands from 28 to 31 degrees, in the Sterea from 21 to 35 degrees, in the Peloponnese from 18 to 34 degrees, in the North Aegean from 22 to 35 degrees, in the Central and South Aegean from 22 to 30 degrees, in the Dodecanese from 24 to 35 degrees, in Crete from 22 to 34 degrees.
From 22 to 24 degrees and from 22 to 24 degrees Celsius.

Winds will blow from northwestern directions from 4 to 6 Beaufort, in the Central and North Aegean until the morning hours and in the North Ionian Sea from the afternoon, locally 7 Beaufort.

In Attica, sunshine is forecast. Winds will blow from northwestern directions 3 to 5 and in the morning hours from the east 6 Beaufort. The temperature will range from 21 to 34 degrees.

In Thessaloniki, the weather will be clear. Winds will be 4 to 6 and in the morning hours, 7 Beaufort, weakening from midday. The temperature will range from 18 to 33 degrees.

The weather on Friday, July 11

Initially, generally clear weather, but from midday in the continental areas, local clouds will develop, and in the mountains, there will be rain.

The winds will blow from the north from 3 to 5 Beaufort and in the sea locally 6 Beaufort.

The temperature will not change significantly. It will reach 31 to 33 degrees Celsius in the eastern mainland, 34 degrees Celsius in the western mainland, the East Aegean islands, the Dodecanese and southern Crete and 29 to 31 degrees Celsius in the rest of the island country.

The weather on Saturday, 12 July

Generally clear with a few local clouds in the north. In the midday-afternoon hours, there will be some clouds on the mainland, mainly in the mountains, and there will be local rain and possibly isolated thunderstorms in the mountains.

Winds will blow from the north at 3 to 5 Beaufort, and in the sea locally 6 Beaufort.

The temperature will not change significantly.

The weather on Sunday, July 13

Generally clear weather with occasional clouds in the midday – afternoon hours in the continental mountains.

Winds will blow from the north at 3 to 5 Beaufort, and in the Aegean Sea 6 to 7 Beaufort.

The temperature will rise slightly.