Greece Climate
Top 5 Cities: Athens, Thessaloniki, Patras, Piraeus, and Larissa
This month in numbers
April 2026 saw Greece record an average temperature of 13.01°C, an anomaly of +0.5°C compared to the 1961–1990 baseline. This ranked as the 32nd warmest April in 86 years of records. Globally, April 2026 was the 2nd warmest April on record for land temperature, with an anomaly of +1.1°C.
What changed
The three-month period from February to April 2026 saw an average temperature of 10.34°C, marking a significant anomaly of +1.2°C above the 1961–1990 baseline. This made it the 18th warmest such period on record for Greece. This trend aligns with the broader global picture, as the global land temperature for the same three-month period also ranked as the 2nd warmest on record, with an anomaly of +1.2°C. Greece's 12-month rolling anomaly places it 88th out of 234 regions, indicating a continued warming trend.
What’s driving change?
The warming observed in Greece is part of a broader trend, with the country experiencing its warmest year on record in 2025, at 16.66°C, and a long-term warming trend of +1.33°C against the 1961–1990 baseline. This warming is influenced by the , where higher latitude regions tend to warm faster. The Mediterranean region, including Greece, is also particularly susceptible to the impacts of ENSO. While the current ENSO state is Neutral, the forecast indicates a strong likelihood of El Niño developing from May-July 2026 onwards, with probabilities reaching 98% by August-October 2026. Historically, El Niño phases have typically brought warmer and drier conditions to the Mediterranean during summer, amplifying the risk of heatwaves and wildfires, especially in the Iberian Peninsula. You can track the latest ENSO developments at ENSO tracker.
Greece has also experienced significant extreme weather events in recent months. In early April 2026, Storm Erminio brought heavy rainfall, strong winds, and Saharan dust, leading to widespread flooding, disruption to transport, and one fatality in Nea Makri, east of Athens. This followed earlier severe weather in February 2026, which saw storm-force winds and widespread flooding across the Ionian Sea, Crete, and the Aegean, with the Pineios River overflowing in the western Peloponnese.
Looking ahead
The strong forecast for an El Niño phase in the coming months suggests a heightened probability of warmer and drier conditions for Greece through the summer.
Sources:
Generated by Gemini from climate data and web sources
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Data Sources
Data Sources for Greece
Every figure on this page is sourced from official, openly published climate datasets. Anomalies are calculated against the 1961–1990 baseline (temperature) and 1991–2020 (rainfall, sunshine, frost) — see the Methodology & Sources page for the complete dataset list and update calendar.
FAQs
FAQs
How is the climate in Greece changing?
Greece is warming in line with the rest of the world. The page above shows the latest monthly temperature anomaly versus the 1961-1990 baseline, the long-term annual trend, and the region's rank in the historical record. The trend rate is shown as °C per decade in the headline panel; you can also see the warmest and coolest years on file.
Where does the climate data for Greece come from?
Climate data for Greece comes from Our World in Data, sourcing Copernicus ERA5 and HadCRUT5 (national temperature anomaly) and the Global Carbon Project via Our World in Data (CO₂ emissions), refreshed every month, when the upstream temperature and rainfall data are refreshed.
What is the climate baseline used on this page?
Anomalies on this page are calculated against the 1961-1990 climatological baseline, which is the standard reference period used by the Met Office, NOAA, IPCC and most national climate services. Some panels also show the source-native 1901-2000 (NOAA) or 1991-2020 (WMO) baselines for verification. See Methodology & Sources for the full reference.
Which areas does the Greece climate data cover?
The Greece climate profile covers Athens, Thessaloniki, Patras, Piraeus and surrounding areas. Temperature, rainfall and emissions data for Greece
How often is the Greece climate update refreshed?
The Greece climate update is refreshed monthly, typically a few days after the previous month closes and the upstream provider (Met Office HadUK-Grid, NOAA Climate at a Glance, Copernicus ERA5 or the Global Carbon Project) publishes its update. See the Climate Rankings for cross-region comparisons.