July 2025 was the second-hottest July since 2010 in Northern and Central Greece, according to data released by the National Observatory of Athens (meteo.gr).
Based on readings from a network of 53 weather stations operating continuously since 2010, the average daily maximum temperatures across the country exceeded the seasonal norm, as measured against the 2010–2019 average.
The temperature anomaly map published by the Observatory shows deviations in mean maximum temperatures by region for July 2025. The month was marked by persistently high temperatures, culminating in a prolonged heatwave from July 14 to 28.
According to meteo.gr, July 2025 ranked as follows in terms of average maximum temperatures since 2010:
2nd hottest in Northern and Central Greece,
3rd hottest in Thessaly, the Peloponnese, and the Aegean & Dodecanese Islands,
4th hottest in Crete, and
5th hottest in Western Greece and the Ionian Islands.
In Athens, the average deviation from normal maximum temperatures was +2.1°C. Notably, 25 out of 31 days in the capital recorded temperatures above seasonal averages.
The findings reflect the growing impact of extreme summer heat in Greece, with the capital city particularly strained during multiple days of 45°C, leading to intense discomfort and disruption across sectors.
