The summer-like weather of recent days is temporarily giving way to unstable conditions, as rain, thunderstorms, and locally intense weather phenomena are expected today in several parts of the country. Temperatures will fall slightly, while northerly winds will gradually strengthen, especially in the Aegean.

According to the forecast from the Hellenic National Meteorological Service (EMY), the weather systems will mainly affect the Ionian Sea and mainland Greece. Conditions are expected to improve from the evening onward, while sunshine will return toward the end of the week, accompanied by strong seasonal northerly winds (meltemi) reaching locally up to 7 Beaufort.

Macedonia and Thrace

Weather: Increased cloud cover with local rain showers and thunderstorms, mainly in Macedonia. Conditions will improve during the evening.

Winds: Variable 2–4 Beaufort; in eastern Macedonia and Thrace, northerly winds 3–5 Beaufort.

Temperature: 18°C to 32°C, locally up to 33°C. Western Macedonia will be 2–4 degrees cooler.

Ionian Islands, Epirus, Western Central Greece, Western Peloponnese

Weather: Partly cloudy, becoming cloudier over time. Local rain showers are expected, with thunderstorms mainly over mountainous mainland areas during the afternoon. Improvement is expected from the evening.

Winds: Westerly 3–4 Beaufort, locally up to 5 Beaufort.

Temperature: 17°C to 30°C, reaching 31°C inland. Interior Epirus will be 2–3 degrees cooler.

Thessaly, Eastern Central Greece, Euboea, Eastern Peloponnese

Weather: Generally fair, with periods of increased cloud cover bringing local rain and afternoon showers, especially in mountainous areas where thunderstorms may occur.

Winds: Variable around 3 Beaufort, gradually turning northerly at 3–5 Beaufort.

Temperature: 18°C to 31°C, locally 32–33°C inland.

Cyclades and Crete

Weather: Generally sunny.

Winds: Westerly 3–5 Beaufort; in the Cyclades, northerly winds locally reaching 6 Beaufort.

Temperature: 20°C to 28°C, locally 30–31°C in Crete.

Eastern Aegean Islands and Dodecanese

Weather: Generally sunny, with occasional thin cloud cover in northern areas.

Winds: Northerly 4–6 Beaufort.

Temperature: 21°C to 31–32°C.

Attica

Weather: Mostly sunny. During the afternoon, temporary cloud development may bring local showers and possibly isolated thunderstorms, mainly in mountainous areas.

Winds: Northerly 3–4 Beaufort, locally up to 5 Beaufort in western areas.

Temperature: 21°C to 32°C.

Thessaloniki

Weather: Clouds will increase quickly, bringing local rain showers and isolated thunderstorms.

Winds: Northerly 3–4 Beaufort, temporarily turning southerly around midday.

Temperature: 18°C to 31°C.

Forecast for Thursday, June 18, 2026

Generally fair weather. Temporary morning cloudiness over the Sporades and Euboea may bring local showers. During the afternoon, clouds will develop over mainland Greece and Crete, producing local showers and isolated thunderstorms, especially in mountainous parts of the Peloponnese.

Winds will blow from the north at 4–5 Beaufort and 6–7 Beaufort in the Aegean.

Temperatures will remain largely unchanged, reaching 29–32°C in most areas and locally 33°C inland.

Forecast for Friday, June 19, 2026

Mostly sunny weather. Some cloud cover in southern parts of Central Macedonia and eastern Thessaly may bring local morning showers. Afternoon cloud development over mainland areas could lead to local showers, mainly in mountainous regions.

Northerly winds of 4–6 Beaufort are expected in eastern areas, locally reaching 7 Beaufort in the Aegean.

Temperatures will remain stable.

Forecast for Saturday, June 20, 2026

Generally fair weather with temporary cloud development during the afternoon, mainly in western and northern mainland regions, where isolated showers may occur in mountainous areas.

Northerly winds will continue at 4–6 Beaufort in eastern regions and locally 7 Beaufort in the Aegean.

Temperatures will show no significant change.

Forecast for Sunday, June 21, 2026

Mostly sunny conditions. Afternoon cloud development over western and northern mainland Greece may produce isolated showers in mountainous areas.

Northerly winds will blow at 4–5 Beaufort, reaching 6–7 Beaufort in the Aegean.

Temperatures are expected to rise slightly.