Severe weather: Alert over dangerous storms and hail – Areas placed on Red Code

The state apparatus has been placed on Red Code alert since Monday, October 26, in preparation for dangerous weather conditions expected to affect large parts of the country through Thursday, October 29.

According to the latest data from the Hellenic National Meteorological Service (EMY) and the Risk Assessment Committee, the weather is expected to develop as follows:

• Tuesday: Conditions will ease somewhat, although rain and local thunderstorms are expected in eastern and southern Greece. Particular caution is advised in Evia, Magnesia and the Northern Sporades.
• Wednesday: A new deterioration is forecast, with heavy rain and thunderstorms mainly affecting eastern Thessaly, the Northern Sporades, eastern Central Greece – including Phthiotis and Boeotia – Evia and Skyros.

Due to the above, the General Secretariat for Civil Protection has placed the following areas under Red Code mobilisation status:

1. The regional units of Evia, Phthiotis and Boeotia in Central Greece.
2. The regional units of the Sporades, Magnesia and Larissa in Thessaly.
3. The Dodecanese regional units in the South Aegean.
4. The Attica region, as a precautionary measure.
5. The North Aegean region, also as a precautionary measure.

LIVE MAP: Tracking the severe weather

How the severe weather will develop

According to EMY, the severe conditions are expected to last for three days, from Monday, October 26, 2026, until at least Wednesday, October 28, 2026.

More specifically:

Monday, October 26, 2026

• a) Dodecanese until late evening – red warning.
• b) Thessaly, including Magnesia and Larissa, until the evening – orange warning.
• c) Sporades and Evia – orange warning.
• d) Eastern Central Greece, mainly Phthiotis and Boeotia, until late afternoon – orange warning.
• e) Attica from the evening hours – orange warning.
• f) Eastern Aegean islands – orange warning.

Tuesday, October 27, 2026

• a) Sporades and Evia until midday and again from the evening – orange warning.
• b) Eastern Central Greece, mainly Phthiotis and Boeotia, from late evening – orange warning.
• c) Attica until the morning hours – orange warning.
• d) Eastern Aegean islands – orange warning.
• e) Dodecanese from late afternoon – orange warning.
• f) Thessaly, including Magnesia and Larissa, from the evening – orange warning.

Wednesday, October 28, 2026

• a) Thessaly, including Magnesia and Larissa, until late at night – red warning.
• b) Sporades and Evia until late evening – red warning.
• c) Eastern Aegean islands until late evening – orange warning.
• d) Dodecanese – red warning.
• e) Eastern Central Greece, mainly Phthiotis and Boeotia, intermittently until late at night – orange warning.
• f) Attica from the early morning hours until midday – orange warning.

EMY forecast

Rain, thunderstorms and a noticeable drop in temperatures are expected from Tuesday, with the strongest conditions focused mainly on eastern and southern parts of the country.

A gradual improvement is expected from Thursday.

Tuesday, October 27: Strong thunderstorms and possible hail

Cloud cover will increase at times on Tuesday, with local rain and scattered thunderstorms, mainly in eastern and southern Greece.

Conditions in Thessaly, the Sporades, Evia, eastern Central Greece – including Attica – the eastern Aegean islands and the Dodecanese will be locally severe, while isolated hailstorms are also possible.

Snowfall is expected in mountainous areas of central and western Greece.

Winds will blow from northerly directions at 4 to 6 Beaufort, reaching 7 and possibly locally 8 Beaufort over the seas. Only in the southeastern Aegean will southerly winds prevail, reaching up to 5 Beaufort.

Temperatures will fall slightly, mainly in northern and eastern areas. Highs will reach 15 to 18 degrees Celsius in northern and central Greece and 19 to 22 degrees elsewhere. In Attica, temperatures will range from 13 to 19 degrees Celsius, while in Thessaloniki they will range from 11 to 17 degrees.

Wednesday, October 28: Severe conditions continue

In eastern Macedonia and Thrace, temporarily increased cloud cover is forecast, with local rain mainly in coastal and maritime areas.

Across the rest of the country, increased cloud cover with local rain is expected, while scattered thunderstorms will develop in eastern and southern areas, particularly over coastal and maritime regions.

Conditions will be locally severe in Thessaly, the Sporades, Evia, eastern Central Greece and Attica, as well as the eastern Aegean islands and the Dodecanese.

Snowfall is expected in mountainous areas of central and western Greece.

Winds will blow from northerly directions at 4 to 6 Beaufort and locally up to 7 Beaufort in the Aegean. In southeastern areas, southerly winds of 4 to 5 Beaufort are expected.

Temperatures will fall across the country, reaching 15 to 18 degrees Celsius on the mainland and 20 to 21 degrees in the eastern island regions.

Thursday, October 29: Gradual improvement from the afternoon

In eastern and southern areas, increased cloud cover with local rain is expected, along with scattered thunderstorms mainly in coastal and maritime areas. Conditions are expected to gradually improve from the afternoon.

Elsewhere, a few clouds are forecast, temporarily increasing, with local rain mainly in mountainous areas. Visibility will be locally limited in northern regions during the morning.

Winds will blow from northerly directions at 4 to 6 Beaufort and locally up to 7 Beaufort in the Aegean.

Temperatures will rise slightly.

Friday, October 30: Local rain and isolated thunderstorms

On Friday, periods of increased cloud cover are forecast, with local rain and possibly isolated thunderstorms, mainly over coastal and maritime areas and during the midday and afternoon hours over the mainland.

Winds in western areas will be variable at 2 to 4 Beaufort, while in eastern regions they will blow from northerly directions at 3 to 5 Beaufort and temporarily reach 6 Beaufort in the Aegean.

Temperatures will remain largely unchanged.