After… Drosia Breath on Friday (18/07/2025) the weather is still hot on Saturday with even higher temperatureswhile on Sunday the warm invasion begins and the heat.
A heat which according to meteorologists will be intense, prolonged and with temperatures that will reach even 44 degrees Celsius.
In fact The situation will be unbearable even in the evening as Temperatures several days will be over 35 degrees Celsius even When the sun falls.
Specifically, as the Star Meteorologist pointed out, From Tuesday to the end of the week a warm invasion is expected across the country. But the hard things They start already on Sundayso the mercury will pull uphill.
The thermometer will exceed 40 ° C in many areas. The highest temperatures are expected on Wednesday, Thursday and Friday. In fact on Friday, Mercury may touch all 45 degrees Celsius!
One of the main features of the upcoming heatwave that There will be no dew or during the night. The moisture rates will also be high, intensifying the sense of discomfort, especially on Friday.
Is recommended Special attention to vulnerable groups and restriction of travel the warm hours of the day.
Sunday and Monday, July 20 and 21, appear to be a day of hot masses, but not the start of the heat.
Even on Sunday, July 27, 2025, when the evidence shows that the heatwave will be started to divergent in a significant part of Greece, it will not end everywhere.
Callianos: The heatwave will last at least 6 days
The temperature will rise further in the coming days and the heat wave will last at least 6 days.
So from Monday and Saturday, temperatures are expected to exceed 43, even 44 degrees Celsius. Temperatures on the islands will be at 37 ° C – 40 ° C, while the continents will range from 41 ° C – 43 ° C.
Locally mercury will reach 44 ° C, perhaps 45 ° C in: Thessaly, eastern Central Greece and eastern Peloponnese.
According to Mega meteorologist Yiannis Kalliano, in Attica the temperatures expected to be recorded are:
— Saturday: 36 ° C
-Proid: 38 ° C
-Tero: 40 ° C
-The: 41 ° C
-Wednesday: 42 ° C
-Fight: 42 ° C
— Friday: 40 ° C
While it should be noted that the discomfort due to thermal stress will continue during the evening hours, and even midnight in Athens will record temperatures between 34 ° C – 35 ° C.
Marousakis: Wave of heat with duration
In his post, Clearchos Marousakis states that “after the breath of Drosia in Northern Greece, which has been giving the colder gas mass in recent hours and which has brought us temporary local thunderstorms, the temperature will be gradually rising in the coming days and mainly from Sunday.
The reason for this evolution as shown in our first map with the bright red color, the very hot air masses that rush from the coasts of North Africa to the eastern Mediterranean basin, affecting our country as well.
On Monday to Friday of the next week we will experience an organized and extensive spatial and time wave of heat, features of which will be:
1.The extensive very high maximum temperatures with prices greater than 37 ° C to most areas
2.The high minimum temperatures with emphasis on urbanized areas where we will find mercury even above 30 ° C for many hours even over the deep night.
3. In marine seaside areas in the night, high rates of relative humidity are expected, so the discomfort will be high.
4. The heat wave we expect will be combined with meltemia in the Aegean mainly. This implies an increase in the risk of fire.
5. The “ceiling” in terms of maximum temperatures in the atmosphere of the atmosphere is estimated at 41 ° to 43 ° Cels of Celsius and as a rule in closed and away from the sea.
Local factors related to the interaction of topography with wind and sunlight can push mercury and above, but this will be an isolated event and should not be at the top of the update on the heat issue.
6. Exodus from this long -term heatwave is placed in time over the coming weekend and may be done in a “violent” manner in terms of changing atmospheric traffic. This may lead to an extreme risk of fire or even dangerous thunderstorms. This will be examined in more detail when we approach more time in this time.
Live the evolution of the weather
About the time evolution of temperature
The information card may be emphasized at the maximum of temperatures, but it is worth noting that it is not what burdens the human body.
A temperature of 40 ° or more degrees, usually exhibits a short duration of action. What creates greater stress are temperatures of around 36 ° to 38 degrees that will occupy most of the day, as well as temperatures above 28 degrees that will occupy most of the night.
So don’t scare by reading about temperatures of more than 40 degrees, the long duration of smaller temperature values cause the problem.
The cycle of influence of meltem
Meltemia or more correctly annuals follow the surface heating cycle throughout the day. So at noon and in the afternoon the temperature differences are maximized, we have the maximum effect of them.
At night when the temperature differences are minimized, we are led to the minimum of their effect. The above is a function of the topographic relief of the area where we are referring.
The role of the sea breeze
To our good fortune, our country has large marine areas. As a result, the phenomenon of the sea breeze is developed during the meridian and afternoon hours.
This circulation cell growing between land -sea will help significantly marine coastal areas during maximum temperatures.