Luxembourg Climate
Top 5 Cities: Luxembourg City, Esch-sur-Alzette, Differdange, Dudelange, and Ettelbruck
This month in numbers
Luxembourg experienced its 9th warmest April on record, with an average temperature of 10.68°C, marking a significant anomaly of +3°C compared to the 1961–1990 baseline. Globally, April 2026 was the 2nd warmest on record for land temperatures, with an anomaly of +1.1°C. The three-month period from February to April 2026 also ranked as the 13th warmest on record for Luxembourg, with an average temperature of 6.65°C, an anomaly of +2.2°C.
What changed
The past three months in Luxembourg have been notably warmer than average, with the February-April period ranking among the warmest on record. This trend aligns with the broader global picture, as global land temperatures for the same three-month period were the 2nd warmest on record. Luxembourg's latest monthly anomaly of +2.96°C places it 41st out of 234 regions in terms of warming compared to its historical average. The country's long-term trend shows a warming of +1.75°C against the 1961–1990 baseline, with 2025 being the 5th warmest year on record.
What’s driving change?
The persistent warmth in Luxembourg is part of a broader pattern of , with winters warming faster than summers at high latitudes. The impacts of climate change, including extreme weather events such as prolonged droughts, heatwaves, and torrential rains causing severe flooding, are increasingly being felt in the Grand Duchy. Luxembourg's Ministry of the Environment, Climate and Biodiversity recently presented a strategy and action plan to adapt to these inevitable effects of climate change, highlighting the country's vulnerability to such events.
Looking ahead
The ongoing El Niño event, characterised by unusually elevated subsurface heat levels in the western Pacific and strong westerly wind bursts, is expected to continue influencing global temperatures and weather patterns in the coming months.
Sources:
Generated by Gemini from climate data and web sources
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Data Sources
Data Sources for Luxembourg
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 Luxembourg changing?
Luxembourg 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 Luxembourg come from?
Climate data for Luxembourg 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 Luxembourg climate data cover?
The Luxembourg climate profile covers Luxembourg City, Esch-sur-Alzette, Differdange, Dudelange and surrounding areas. Temperature, rainfall and emissions data for Luxembourg
How often is the Luxembourg climate update refreshed?
The Luxembourg 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.