The cold snap caused a sudden temperature drop of up to 10 degrees Celsius within just a few hours and significant snowfall in mountainous areas.
The Omega Block phenomenon takes its name from the shape the jet stream forms in the upper atmosphere, resembling the Greek letter omega.
An incoming wave of unstable weather will sweep across the country from north to south, bringing thunderstorms, strong winds, and a sharp drop in temperatures before conditions improve by the weekend.
Unstable conditions bring rain and thunderstorms to northern regions, while much of the country remains mostly clear. Temperatures stay mild but are expected to dip midweek as winds strengthen.
High concentrations of Saharan dust are choking the air across Greece, with experts warning of health risks as the phenomenon intensifies through Friday
Mild, mostly dry conditions will favor travel and outdoor celebrations across Greece, with scattered showers early in the holiday period before warmer, sunnier weather sets in by Easter Sunday
During Holy Week, conditions will be mostly stable with some variability.
Scattered showers are expected across parts of the country over the weekend, although no major or widespread disruption is anticipated
The average temperature for the winter of 2025-2026 was 12.63°C, which was +2.34°C higher than the average of 1991–2020
Cool temperatures and scattered mountain showers expected across Greece, with stronger northern winds in the Aegean and mild conditions in southern island regions.
Overcast conditions are expected across much of the country, with the highest chance of rain in western and southern regions.
A severe weather front on Wednesday battered the Ionian Sea islands of Zakynthos and Kefalonia, interrupting ferry boat connections between the two islands and the opposite mainland. According to port authorities, scheduled routes were cancelled due to gale force winds and rough seas. Meanwhile, inclement weather is forecast for throughout the country on Thursday, Feb. […]
Heavy rain, powerful winds and flooding have hit large parts of Greece, leaving homes and farmland underwater, disrupting transport, and prompting emergency alerts as authorities warn of more extreme weather
Authorities place large parts of northern and southern Greece on maximum alert as heavy rain, violent storms, strong winds and widespread snowfall are forecast from Sunday into Monday, urging residents to limit travel and stay vigilant
Meteorologists warn of an intense weather system from Saturday through Monday, bringing heavy rain, thunderstorms, hail, strong winds and snowfall, including in lower-altitude areas, before conditions gradually improve midweek
Storms are expected across the wider Athens area on Thursday and again Saturday, accompanied by strong winds.
Authorities in Greece have activated emergency measures expecting heavy snow, flooding and strong winds on Wednesday.
Gale-force winds, heavy rain and snowfall are disrupting transport across Greece, while authorities warn of a heightened flood risk in the Athens region as severe winter weather intensifies
A powerful low-pressure system forming over the Mediterranean is expected to bring severe storms, flooding rain, snow, and winds up to 120 km/h, with the highest risk forecast from midweek onward
A wave of polar air brought snow to unusually low elevations across much of Greece on Sunday, with freezing temperatures, strong winds, and sharp contrasts between snowy lowlands and sunny mountain peaks.