When will the severe weather hit the various regions of Greece?
The weather pattern is shifting rapidly, with heavy precipitation and intense storms expected to strike multiple parts of the country over the next 48 hours. The most immediate impact is felt on Tuesday, October 13, particularly in the Ionian Islands and western mainland areas.
Timeline of precipitation for Tuesday, October 13
On Tuesday morning through late afternoon, the Ionian Islands (including Lefkada, Kefalonia, and Zakynthos), western Central Greece, and the western and southern Peloponnese will face heavy rain and thunderstorms. By midday, the focus shifts to Chalkidiki, followed by the Sporades, eastern Thessaly (Magnesia), and Euboea in the afternoon. These specific areas are flagged for high intensity and long duration of rainfall. Later in the evening, the weather moves toward the Cyclades and the Dodecanese, with Crete experiencing storms in the Chania and Rethymno regions during the night.
Wednesday, October 14 outlook
The storm persists into Wednesday, affecting Chalkidiki through the morning. The Sporades, eastern Thessaly, and Euboea will continue to see intense weather until the afternoon. Similarly, the Dodecanese and the Cretan regions (Chania and Rethymno) are expected to experience these conditions until late Wednesday night.
What is the impact of the wind speeds in the Aegean?
Very strong northeasterly winds are forecasted to sweep across the Aegean Sea, reaching significant intensity levels. These winds are expected to pose challenges for maritime transport and coastal safety.
According to meteorological data, winds will reach 8 to 9 Beaufort in the North Aegean, with localized gusts potentially hitting 10 Beaufort. This pattern will gradually expand to the Central Aegean. The period of highest wind intensity is expected to last from Tuesday night through late Wednesday night. While the North Aegean faces the most direct impact, the Central Aegean will see a gradual strengthening of winds starting from the afternoon of Tuesday.
How will temperatures change across the country?
A noticeable drop in temperature accompanies the arrival of the storm system. The cooling effect varies significantly depending on the geographical region, with northern areas seeing much sharper declines than the southern islands.
| Region | Expected Temperature Range (°C) |
|---|---|
| Central and Northern Mainland | 16°C to 18°C |
| Other Mainland Areas | 19°C to 21°C |
| South-Eastern Islands | 22°C to 24°C |
| Crete | 25°C (average) |
| Western Macedonia | 7°C to 12°C |
| Thessaly | 13°C to 20°C |
| Ionian Islands | 14°C to 18°C |
In Western Macedonia, temperatures will be particularly low, ranging between 7°C and 12°C. In contrast, Crete remains the warmest region with peaks reaching up to 27°C according to some local forecasts, despite the stormy conditions.
What is the specific forecast for Attica and Thessaloniki?
The metropolitan areas of Attica and Thessaloniki will experience localized weather changes, though they may not face the same intensity of storms as the coastal or island regions.
Attica weather details
In Attica, cloud cover will be prevalent throughout the day. Rain and sporadic thunderstorms are expected to develop after midday. Winds in the region will initially be variable (2 to 4 Beaufort) but will shift to a northerly direction by the afternoon, increasing to 3 to 5 Beaufort. Temperatures in Attica are expected to fluctuate between 18°C and 22°C.
Thessaloniki weather details
Thessaloniki is forecasted to experience cloudy skies with brief, localized rain showers. Winds will blow from the northwest at speeds of 2 to 4 Beaufort. The temperature in the center of Thessaloniki is predicted to range from 16°C to 23°C.
Frequently asked questions
Will there be hail in Greece during this period?
Yes, there is a high probability of hail. Meteorological reports indicate that hail may accompany the heavy rain and thunderstorms, particularly in the Sporades, eastern Thessaly, Euboea, and the Peloponnese regions during the specified windows of intensity.
How strong will the winds be in the Aegean?
The winds in the North Aegean will be very strong, reaching 8 to 9 Beaufort, with localized gusts of up to 10 Beaufort. This intensity will gradually move toward the Central Aegean throughout Tuesday night and Wednesday.
Which areas should prepare for the most intense rainfall?
The Ionian Islands, western Peloponnese, Chalkidiki, the Sporades, eastern Thessaly, and Euboea are expected to experience the most intense and long-lasting rainfall and thunderstorm activity during the two-day period.
Is the temperature drop significant?
Yes, a significant temperature drop is expected across the mainland. While southern islands like Crete remain relatively warm, northern areas such as Western Macedonia could see temperatures as low as 7°C.
When will the weather in Attica improve?
Attica will experience cloudiness and sporadic afternoon thunderstorms. While the storm is widespread, the intensity in Attica is expected to be lower than in the maritime regions, with winds remaining relatively moderate at 3 to 5 Beaufort.
Key takeaways
- Heavy rain and thunderstorms will impact most of Greece on October 13-14, 2026.
- Aegean winds may reach extreme levels of 10 Beaufort in the North Aegean.
- A significant temperature drop is expected, with Western Macedonia reaching as low as 7°C.
- Hail is possible in several regions, including the Sporades and Euboea.
- Attica will face afternoon thunderstorms with temperatures between 18°C and 22°C.
Conclusion
The weather in Greece is entering a period of high instability, characterized by heavy precipitation, potential hail, and severe winds. Residents and travelers, particularly in the Ionian Islands, the Aegean, and the Peloponnese, should remain vigilant of the intensifying storm system. While the metropolitan areas of Attica and Thessaloniki will see less extreme conditions, the overall temperature drop and wind shifts mark a significant seasonal transition. Monitoring local maritime and meteorological updates is advised as the system moves through the country over the next 48 hours.
