2025 Summer Among Greece’s Hottest in Over Six Decades

This summer, Greece experienced its third hottest summer on record since 1960, with temperatures consistently soaring above seasonal norms, according to preliminary data analysed by the scientific team at meteo.gr, part of the National Observatory of Athens.

The summer of 2025 saw unprecedented heat, with June ranking as the second hottest on record, July as the fourth hottest, and August slightly closer to average but still aligning with the overall warming trend. Out of the 92 days of summer, 70 were warmer than the 1991–2020 average, signaling a significant deviation from typical conditions.

Rising Temperatures Across Greece

Data from meteo.gr reveals that the average summer temperature in 2025 was 1.5°C above the 1991–2020 baseline, placing it just 0.3°C cooler than the second hottest summer in 2012 and trailing behind the record-breaking summer of 2024. Over the past six decades, Greece’s average summer temperature has risen by 2.4°C, highlighting a clear warming trend.

Regional Heat Records

The heat was particularly intense in certain regions. Western Greece, the Peloponnese, and Eastern Macedonia recorded their second hottest summer since 1960. Central Macedonia, Attica, and southern Peloponnese followed closely with their third hottest summer. The mainland ranked fourth overall, while the Cyclades, parts of Western Macedonia, and Crete experienced relatively milder conditions but were still above average.

A Warming Trend

The data underscores the ongoing impact of climate change in Greece, with consistently higher temperatures reshaping seasonal norms. As the country grapples with these rising temperatures, experts warn that such extreme summers may become increasingly common.

For more details, visit meteo.gr for the full report.