Weather Update: Cloudy Skies and Cooler Temperatures Across Greece

A shift in weather patterns is expected across Greece starting today, Thursday, September 25, according to the Hellenic National Meteorological Service (HNMS). Cloud cover will increase, bringing localized rain and sporadic thunderstorms, particularly in western regions, while temperatures are set to drop slightly in the north.

Nationwide Forecast

The western parts of Greece, including the Ionian Islands, Epirus, Western Sterea, and Western Peloponnese, will see partly cloudy skies with occasional showers and thunderstorms, especially in the Ionian Sea in the morning and in mountainous mainland areas during the afternoon. Conditions are expected to improve by evening. In contrast, most other regions will enjoy mostly clear skies, though clouds will gradually thicken over mainland areas and western Crete, potentially leading to afternoon showers or isolated thunderstorms, particularly in mountainous regions.

Winds will blow from northern directions at 3 to 5 Beaufort, reaching up to 6 Beaufort in the Aegean Sea, with further strengthening expected overnight in some areas.

Temperature Outlook

Temperatures will range between 28°C and 30°C across most regions, with local highs of 31°C in parts of the mainland. In the Sporades and Cyclades, temperatures will not exceed 27°C, while Crete will see highs of 28°C to 29°C. In Athens, the thermometer will reach up to 31°C, while Thessaloniki will see a high of 29°C.

Regional Breakdown

• Macedonia and Thrace: Mostly clear with occasional clouds thickening during the day. Afternoon showers and possible isolated thunderstorms are expected in mountainous areas of Macedonia. Winds will be variable at 3 to 4 Beaufort, shifting to east-northeast at 4 to 5 Beaufort in eastern areas, strengthening overnight. Temperatures will range from 14°C to 29°C, with central Macedonia reaching up to 30°C.
• Ionian Islands, Epirus, Western Sterea, Western Peloponnese: Partly cloudy with showers and sporadic thunderstorms, starting in the Ionian Sea and spreading to mainland mountainous areas by afternoon, improving by evening. Winds will be variable at 3 to 4 Beaufort, turning north-northwest in the Ionian Sea, reaching up to 5 Beaufort. Temperatures will range from 15°C to 31°C.
• Thessaly, Eastern Sterea, Evia, Eastern Peloponnese: Scattered clouds, becoming denser at times, with afternoon showers and possible isolated thunderstorms, mainly in the Peloponnese mountains. Winds will be east-northeast at 3 to 5 Beaufort, with west-northwest winds in southern areas. Temperatures will range from 14°C to 31°C, with the Sporades capped at 27°C.
• Cyclades and Crete: Mostly clear, with temporary clouds in western Crete bringing afternoon showers or isolated thunderstorms. Winds will be north-northwest at 4 to 5 Beaufort, strengthening to 6 Beaufort by afternoon. Temperatures will range from 18°C to 29°C.
• Eastern Aegean Islands and Dodecanese: Mostly clear with scattered clouds developing by midday. Winds will blow from northern directions at 4 to 6 Beaufort, intensifying in northern areas overnight. Temperatures will range from 19°C to 29°C.
• Attica: Mostly clear with scattered clouds in the afternoon. Winds will be north-northeast at 3 to 5 Beaufort. Temperatures will range from 19°C to 31°C.
• Thessaloniki: Mostly clear with occasional denser clouds in the afternoon, with a chance of showers in surrounding mountainous areas. Winds will be variable at 3 to 4 Beaufort, turning southerly by midday. Temperatures will range from 17°C to 29°C.

Stay prepared for changing conditions, especially in western and mountainous areas, and keep an eye on updates from the HNMS as the weather evolves.