Andorra Endures Second-Hottest June on Record Amid Heatwave

Andorra recorded its second-hottest June since records began in 1950, with average temperatures nearly four degrees above the norm amid a prolonged heatwave and dry conditions.

The National Meteorological Service described the month as "very hot and dry", with an average temperature of 20.4°C at the FEDA hydroelectric plant—representing an anomaly of +3.9°C. This placed it just 0.6°C below the record set in June 2025. Temperatures exceeded 30°C on 10 days and topped 25°C on 21 days. The peak hit 36.4°C on June 22 at Roc de Sant Pere (1,113m), while the lowest reading was -1.7°C on June 3 at La Solana (2,470m). A tropical night, with a minimum of 20.3°C, occurred at La Margineda on June 30.

A heatwave from June 21 to 24, intensified by an anticyclonic ridge causing atmospheric blocking across much of Europe, drove the extremes. Despite some afternoon showers from daytime heating that offered brief, localised relief, highs and lows remained elevated. The warm spell persisted until the morning of June 29. Overall, 22 days saw anomalies above +3°C, including seven exceeding +5°C. Only June 5 was cooler than average. The first 10 days showed greater variability due to trailing fronts from disturbances over the British Isles.

Precipitation was scarce, with FEDA recording 36.4mm—44.4% of the seasonal norm—and an average of 42.1mm across all stations. Rainfall was convective and uneven, dominated by afternoon thunderstorms. Ransol saw the highest total at 85mm, while Les Salines recorded just 22.6mm. The heaviest daily fall was 22mm on June 9 at La Comella, including 14.9mm in 30 minutes. Only parts of the upper Valira d'Orient valley, such as Ransol (1,641m), approached normal levels.

Winds, linked to convective activity, peaked at 72 km/h on June 15 at Roc de Sant Pere station in the valley floor.