Greece Climate
Top 5 Cities: Athens, Thessaloniki, Patras, Piraeus, and Larissa
This month in numbers
April 2026 in Greece saw 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 temperatures, with an anomaly of +1.1°C. The three-month period from February to April 2026 was notably warmer, ranking as the 18th warmest on record for Greece, with an average temperature of 10.34°C, a significant +1.2°C above the baseline.
What changed
The seasonal trend for February–April 2026 indicates a warmer-than-average period for Greece, with temperatures significantly above the long-term baseline. This aligns with the broader global picture, as global land temperatures for the same three-month period also ranked as the 2nd warmest on record. Greece's 1-month anomaly for April placed it 213th out of 234 regions, indicating that while warmer, it was not among the most extreme temperature anomalies globally for the month.
What’s driving change?
The warming trend in Greece is influenced by global climate patterns, including the current Neutral ENSO state, though a transition to El Niño is forecast for the coming months, which typically brings warmer, drier conditions to the Mediterranean during summer. Greece experienced significant extreme weather events in the past few months. From November 2025 to February 2026, Greece was hit by 18 severe storms, resulting in five fatalities and widespread destruction, an almost unprecedented number for the period. In early April 2026, Storm Erminio brought heavy rainfall, strong winds, and Saharan dust, causing flooding, one fatality, and disruptions to transport, particularly affecting Attica, the Aegean islands, Crete, and parts of the Peloponnese. This storm was preceded by another system, "Deborah," in late March and early April, which also brought storms, rain, and snow to various parts of the country.
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.