Rain, thunderstorms, and gale-force winds will dominate the weather over the next five days, according to meteorologists. From October 19 to October 23, weather conditions are expected to worsen, with intense phenomena across many parts of Greece.

Meteorologist Theodoros Kolydas noted in a post that over the next two days, rain will mainly affect central and southern Greece. Thunderstorms will be limited mostly to the southern Ionian Sea, the Peloponnese, and on Monday, to the Cyclades. There is a chance of hailstorms in the southwest.

A low-pressure system currently located south of Sicily and moving east-northeast will affect Greece starting today. According to meteorologist Anastasia Tyraski, the center of this system will be over the southern Ionian on Sunday.

On Sunday and Monday, rainfall will occur across central and southern Greece, including the southern Ionian, Thessaly, Central Greece, Euboea, the Cyclades, and the eastern Aegean islands. Attica is among the regions expected to be affected. Tyraski predicted frequent rain in Attica during these two days.

Meteorologist Klearchos Marousakis mentioned in a post that successive waves of bad weather are expected in the coming days, followed by a brief warm spell known as “Saint Demetrius’ summer.”

Dangerous Weather in Attica and Other Regions

The storm is expected to mainly affect Western Greece, northern areas, and Attica, bringing heavy rain and thunderstorms from Sunday afternoon. The western and central regions of the country will be hit hardest, with the Ionian Islands and northern Greece seeing particularly strong phenomena.

Attica will experience bad weather starting Monday, October 20, with rain and thunderstorms mostly impacting the northern and western suburbs of Athens. Difficult weather conditions will persist through Tuesday, with the potential for localized flooding and reduced visibility in areas of heavy rainfall.

Elsewhere, rain and local showers will continue in Thessaly and Eastern Central Greece, while Crete and the Aegean Islands will be affected to a lesser extent.

Weather Warnings and Severe Phenomena

The Hellenic National Meteorological Service (HNMS) has issued a yellow warning for Attica, due to the intense weather expected to start Sunday afternoon, October 19.

Heavy rainfall and local thunderstorms are expected mainly during the evening hours, with rainfall exceeding 30 mm in many areas. The severity of the phenomena calls for caution, as local flooding and transport delays are possible.

Temperatures and Weather Conditions

During the storm, temperatures will range between 11–22°C, with the lowest recorded in Western Macedonia and Epirus. In Attica, temperatures will remain around 13–23°C, though humidity will make it feel colder.

From Friday, the weather will improve temporarily, with rising temperatures and sunshine in most regions. However, meteorologists warn that seasonal instability will continue, with alternating sunny spells and local showers.

Crete and Rhodes Record Saturday’s Highest Temperatures

Temperatures reached 27–28°C in Crete and Rhodes on Saturday, October 18. According to the National Observatory of Athens / meteo.gr, the highest temperature was recorded at the Potamon Dam in Rethymno, at 28.1°C. The table lists the eight weather stations that recorded the highest midday temperatures on Saturday.

Today’s Weather

Cloudy skies with local rain are expected nationwide, scattered thunderstorms in the Peloponnese, and late-night storms in the Cyclades. African dust transport will affect western and southern areas. Visibility will be locally limited, mainly in the northwestern mainland.

Temperature ranges:

• Western Macedonia: 8–16°C
• Rest of Macedonia & Thrace: 13–20°C
• Thessaly: 12–21°C
• Epirus: 10–20°C
• Rest of mainland: 14–20/21°C
• Ionian Islands: 14–20°C
• Aegean Islands: 13–23°C (up to 20°C in the north)
• Crete & Dodecanese: 14–26/27°C

Winds:

• Generally easterly, turning northeast later, 3–5 Beaufort, and up to 6 Beaufort in the south.

Attica: Cloudy with local rain, NW turning NE winds, 2–4 Beaufort, temperatures 13–19°C.
Thessaloniki: Mostly cloudy, NW turning SE winds, 3–5 Beaufort, temperatures 11–21°C.

Monday, October 20

In the Peloponnese, Thessaly, Eastern Central Greece, and the Cyclades, clouds with local rain and scattered thunderstorms in southern parts. The southwestern Peloponnese may see strong phenomena. Elsewhere, light cloudiness with occasional weak rain. African dust may appear over the southern Aegean.

Winds: Easterly/northeasterly 3–5 Beaufort.
Temperatures: 18–22°C, up to 23–25°C in Crete and the Dodecanese.

Tuesday, October 21

In the southern mainland and southern Aegean, clouds with local rain and isolated storms, gradually improving. Elsewhere, light cloudiness, thickening at times, with possible light showers inland and at night in the Ionian. African dust in the south.

Winds: Variable 3–4 Beaufort.
Temperatures: No significant change.

Wednesday, October 22

In the west, increasing clouds with rain and scattered thunderstorms, especially in the Ionian by midday. Elsewhere, light clouds thickening later with local rain inland. African dust likely in the east.

Winds: Southerly 3–5 Beaufort.
Temperatures: Slight rise, mainly in central and northern areas.

Thursday, October 23

Cloudy with local rain and isolated thunderstorms, mainly in the west and the Aegean, weakening from the west after midday. Elsewhere, clouds occasionally thicker with light local rain.

Winds: Southerly 3–5 Beaufort, turning northwesterly in the Ionian later.
Temperatures: No significant change.