Greece will see generally favorable weather conditions on Thursday, December 18, with widespread sunshine and only a few clouds. Slightly increased cloud cover is expected over eastern mainland regions and Crete, while the rest of the country enjoys mostly clear skies.
Visibility will be reduced in many areas during the early morning and evening hours due to fog, which may become locally dense and affect road travel. Frost is expected around dawn in northern mainland regions, particularly inland and higher-elevation areas.
Temperatures will remain typical for mid-December. In Western Macedonia, values will range from -4°C to 11°C. In the rest of Macedonia and Thrace, temperatures will range from -2°C to 12–14°C. Thessaly will see lows near 0°C and highs of 14–16°C, while Epirus ranges from 2°C to 14–16°C. Other mainland regions will experience temperatures between 2°C and 16–18°C. The Ionian Islands will range from 7°C to 16–17°C, and the Aegean islands and Crete from 7°C to 16–18°C.
Northerly winds will blow across the Aegean Sea at 3–4 Beaufort, locally reaching 5 Beaufort. In the Ionian Sea, easterly winds will remain light, not exceeding 3 Beaufort.
In Athens and the Attica region, skies will feature thin cloud cover. Visibility may be limited overnight and early in the morning due to fog. Northerly to northeasterly winds will blow at 2–3 Beaufort, with temperatures ranging from 8°C to 16–17°C.
In Thessaloniki, conditions will be mostly fair with scattered clouds. Fog may develop overnight and early in the morning, reducing visibility. Winds will be light, and temperatures will range from 5°C to 13–14°C.
