Dramatic weather changes are expected in the coming days, as Greece transitions from summer-like temperatures to a decidedly autumnal scenario, with rain, thunderstorms, a notable drop in temperatures, and the possibility of the first snowfall on the highest mountain peaks. According to meteorologist Klearchos Marousakis, Greece will experience two contrasting weather patterns through the weekend, with western and northwestern regions affected by a low-pressure system moving in from Italy, while eastern and southern areas will see above-seasonal temperatures that could locally reach as high as 32°C. The most significant weather shift is expected to begin on the afternoon of Tuesday, October 13, when a new system from the north is forecast to bring colder air masses into the country, setting the stage for intense weather events and snowfall at high altitudes — provided current forecast data is confirmed.
Weather: Rain in the west and summer temperatures in the east
For Friday, October 9, meteorologist Klearchos Marousakis describes a day of significant regional weather variation, as a low-pressure system approaching from Italy is driving increased cloud cover and weather activity primarily across western and northwestern Greece. The northern Ionian Sea and Epirus are among the most affected areas, experiencing rain and thunderstorms, while at the same time the eastern and southern parts of the country enjoy sunshine with temperatures locally approaching 30°C. This picture highlights the striking contrast playing out within the same day, with some regions facing unstable conditions while others maintain temperatures well above the October norm. At the same time, elevated humidity levels are favoring the development of fog and reduced visibility during the morning hours across parts of mainland Greece, while the movement of the low-pressure system is expected to shape how weather conditions evolve in the days ahead.
Up to 32°C on Saturday — which areas will see rain
On Saturday, October 10, the contrast between western and eastern Greece is expected to persist, with high temperatures remaining primarily across the country’s eastern regions. According to the meteorologist’s forecast, temperatures could climb again and reach as high as 32°C locally, creating conditions that feel more like summer than autumn. In contrast, the atmosphere in the west and north will remain more seasonally appropriate, with rain and thunderstorms continuing across several areas. The northern Ionian Sea, Epirus, western Central Greece, and western Macedonia are expected to be at the heart of the instability, with weather phenomena potentially spreading further east in places. Winds will blow mainly from southern and southwestern directions, continuing to channel warmer air masses toward certain parts of the country, ahead of the major change forecast for mid-next week.
How the bad weather will develop on Sunday and Monday
On Sunday, October 11, the low-pressure system is forecast to shift eastward, causing cloud cover and rainfall to affect more areas of the country, with temperatures seeing a modest decline. This gradual repositioning of the system will slowly reduce the intense temperature contrast of the previous days, though it will not yet mark the main weather change that meteorologists are anticipating. Monday, October 12, is expected to serve as a brief respite between the two bouts of bad weather, as conditions improve and skies clear across much of the country. Temperatures are forecast to be pleasant, offering a temporary period of stability before the arrival of the next system. According to Klearchos Marousakis, this improvement will be short-lived, as forecast data from the following day points to a new deterioration — this time with more organized weather activity and noticeably colder air masses.
Sharp temperature drop starting Tuesday
The most significant weather change is expected to begin on the afternoon of Tuesday, October 13, when a new system from the north is forecast to impact the country, triggering a sharp drop in temperatures and a marked shift in atmospheric conditions. This second wave of bad weather is estimated to be more organized than the previous one, bringing heavier rainfall and stronger thunderstorms, while the influx of colder air masses will push temperatures to noticeably lower levels compared to those of the preceding days. This change will make the presence of autumn far more palpable, particularly in regions that will still be experiencing warmth through the weekend. The lower temperatures are forecast to persist at least through Thursday, October 15, with the progression and intensity of weather events depending on the track of the new system.
Where the first snow is expected — and when it’s time to grab a jacket
The arrival of colder air masses from Tuesday is creating, according to current forecast data, a chance of the season’s first snowfall on the very high mountain peaks of northern and central mainland Greece. Klearchos Marousakis notes that for now, this estimate applies to high altitudes and the specific areas where snowfall may occur — as well as the exact elevation at which it will appear — have not yet been pinpointed. A clearer picture will emerge from upcoming forecasts, as this is still a trend that requires confirmation. As far as everyday life is concerned, the noticeable temperature drop from Tuesday onward — and especially in the days that follow — is expected to make warmer clothing necessary, particularly in the colder parts of the country. So, after temperatures that will still touch 32°C, the weather scene will shift considerably, with jackets gradually making their way back into daily life — though no specific regional temperature forecast has yet been issued.
